Nickel alloys have become indispensable materials across numerous industries, from aerospace and petrochemical processing to marine engineering and power generation. Their exceptional combination of high-temperature strength, corrosion resistance, and mechanical durability makes them ideal for demanding applications. However, one critical challenge that engineers and materials scientists continually face is enhancing the wear resistance of these alloys to maximize component lifespan, reduce maintenance costs, and improve operational efficiency in harsh environments.
Understanding how to improve wear resistance in nickel alloys requires a comprehensive approach that combines advanced surface treatments, strategic material selection, microstructural optimization, and innovative coating technologies. This article explores the practical methods, material strategies, and cutting-edge techniques available to enhance the wear performance of nickel-based materials in industrial applications.
Understanding Wear Mechanisms in Nickel Alloys
Before implementing wear resistance enhancement strategies, it is essential to understand the various wear mechanisms that affect nickel alloys during service. Wear can manifest in several forms including galling or adhesive wear when metal surfaces slide against each other with poor lubrication, abrasive wear caused by hard particles or fluids containing solids that erode or scratch surfaces, corrosive wear from chemically aggressive liquids, and erosive wear from the impact of external particles.
Nickel-based superalloys are extensively used in automotive industry, nuclear reactors, and other applications where wear takes place, making it important to understand their wear behavior. The wear characteristics of nickel alloys are influenced by multiple factors including operating temperature, contact pressure, sliding velocity, environmental conditions, and the presence of corrosive media. Each application presents unique challenges that require tailored solutions.
Temperature plays a particularly significant role in wear behavior. Wear of nickel-based superalloy is dependent upon temperature, with different mechanisms dominating at various temperature ranges. At elevated temperatures, oxidation and thermal softening can reduce wear resistance, while at lower temperatures, mechanical wear mechanisms such as abrasion and adhesion become more prominent.
Surface Treatment Technologies for Enhanced Wear Resistance
Hardfacing: A Proven Approach
Hardfacing is the application of a layer of nickel or cobalt wear-resistant alloy to a part for extending the machine's service life, applied to reduce wear, abrasion, impact, erosion, or galling, and can be performed on worn parts to replace metal lost through wear and on new parts when wear is anticipated. This technique has proven highly effective across numerous industries for both preventive protection and component restoration.
Plasma Transferred Arc (PTA), Gas Tungsten Arc (GTA) and Laser are the major hardfacing processes, governing microstructure, substrate dilution, wear and mechanical properties. Each process offers distinct advantages depending on the application requirements, component geometry, and desired coating characteristics.
Available methods for hardfacing include Thermal spray, Oxy fuel welding, Arc welding, Plasma transfer arc welding and laser welding, with these applications desired for dense and relatively thick coatings with high quality bonding between base metal and hard facing material. The selection of the appropriate hardfacing method depends on factors such as coating thickness requirements, substrate material, production volume, and cost considerations.
Laser Cladding Technology
Laser cladding has emerged as one of the most advanced and effective methods for applying wear-resistant coatings to nickel alloys. Laser cladding provides good metallurgical bonds, minimal dilution and low distortion of the workpiece, which are hard to achieve by other hardfacing techniques. This precision technology allows for highly controlled deposition of wear-resistant materials with exceptional quality.
Ni60 alloy is extensively utilized to enhance substrate surface properties owing to its high hardness and superior wear and corrosion resistance, though its high crack sensitivity during fabrication of thick cladding layers restricts applications, which can be solved by adopting laser cladding with optimized laser power and substrate preheating temperature. Recent advances have successfully addressed traditional limitations of laser cladding processes.
Nickel-based coatings obtained by laser melting are broadly applied for surface modification owing to their high bond strength and exceptional wear resistance, and are extensively employed in high temperature wear environments. The versatility of laser cladding makes it suitable for both new component fabrication and repair of worn parts in critical applications.
Thermal Spray Processes
Thermal spray technologies offer another effective route for applying wear-resistant coatings to nickel alloy components. Nickel-based self-fluxing materials deposited by atmospheric plasma spraying (APS) have feasible wear resistance performance. These processes are particularly advantageous when thin, hard coatings are required with minimal substrate distortion.
The estimated porosity of the as-sprayed sample was 3.28%, while the remelted coating sample at 1100 °C had only 0.22% porosity, demonstrating how post-spray heat treatment can significantly improve coating density and performance. The remelting process is critical for optimizing the microstructure and mechanical properties of thermally sprayed coatings.
COLMONOY® and WALLEX® alloys are applied in a wide range of proven hard-surfacing and thermal spraying techniques, including Laser Cladding, PTA, HVOF, Sprayweld™ and Fuseweld™. The availability of multiple application methods provides flexibility in selecting the most appropriate technique for specific component requirements and production constraints.
Advanced Coating Systems
Techniques such as laser powder bed fusion (PBF-LB), pre-oxidation treatment, laser cladding (LC), and cold spray treatment, along with application of new alloy coatings on existing substrates, offer low-cost and efficient corrosion prevention, with coatings generally based on nickel-based alloys incorporating alloy elements with excellent corrosion resistance such as Mg, Mo, Si, and Al. These advanced coating technologies represent the cutting edge of surface engineering for nickel alloys.
Beyond metallic coatings, non-metallic materials can also enhance performance. Carbon coating on NiTi alloy by chemical vapor deposition and flame coating technology exhibits superior corrosion resistance compared to graphene coating, while advanced two-dimensional and layered materials such as graphene, MoS2, and MXenes as alloy coatings significantly enhance corrosion resistance. These innovative coating materials open new possibilities for multi-functional surface protection.
Heat Treatment Strategies for Microstructural Enhancement
Heat treatment represents a fundamental approach to improving the wear resistance of nickel alloys by modifying their microstructure and mechanical properties. Proper heat treatment can significantly increase hardness, strength, and wear resistance without requiring additional material deposition.
Heat-treated L-PBF IN718 material exhibited higher hardness compared to heat-treated wrought IN718 due to the formation of finer precipitation of γ' and γ'' in the FCC nickel matrix. The precipitation of strengthening phases through controlled heat treatment is a key mechanism for enhancing mechanical properties and wear resistance in nickel-based superalloys.
The presence of different boride phases in the borided layer caused significant improvement in hardness (approximately 5 times) and wear resistance (approximately 8 times) than the substrate Inconel 718, though at higher laser power density, due to increased content of soft γ phase, both hardness and wear resistance are reduced. This demonstrates the critical importance of optimizing heat treatment parameters to achieve the desired phase composition and distribution.
The microstructural evolution during heat treatment involves complex phase transformations that must be carefully controlled. Precipitation hardening, solid solution strengthening, and grain refinement all contribute to improved wear resistance. Understanding the relationship between heat treatment parameters, resulting microstructure, and wear performance is essential for developing effective enhancement strategies.
Strategic Material Selection and Alloy Design
The Role of Alloying Elements
The composition of nickel alloys fundamentally determines their wear resistance characteristics. Strategic selection and optimization of alloying elements can dramatically improve performance in specific applications.
Nickel-based wear-resistant alloy plate is composed primarily of nickel, enhanced with alloying elements such as chromium, molybdenum, aluminum, iron, and titanium, offering exceptional wear resistance while maintaining high-temperature oxidation and corrosion resistance, with nickel improving strength without compromising plasticity or toughness, chromium enhancing corrosion resistance in acidic or halogen-rich conditions, and molybdenum boosting wear and corrosion resistance particularly under high-pressure and high-temperature applications.
Molybdenum ennobles nickel and enhances its resistance to reducing acids that induce a cathodic reaction involving the release of hydrogen, including hydrochloric and sulfuric acids which are the most commonly encountered industrial corrosives, and since atoms of molybdenum are relatively large, it also strengthens the gamma solid solution. The multifunctional benefits of molybdenum make it a critical alloying element for wear-resistant nickel alloys.
Chromium plays an equally important role in alloy performance. Addition of chromium promotes the oxidation and corrosion resistance at elevated temperatures and increases the hardness of the coating by formation of hard phases, boron depresses the melting temperature and contributes to the formation of hard phases, and silicon is added to increase the self-fluxing properties and lower the melting point of nickel. The synergistic effects of multiple alloying elements must be carefully balanced to achieve optimal wear resistance.
Advanced Alloy Formulations
Manufacturers are developing advanced Nickel-chromium and Nickel-molybdenum alloy formulations that offer enhanced wear resistance while maintaining high-temperature stability, with these alloys accounting for over 60% of current market demand, and chromium variants particularly favored for extreme corrosion environments. The continuous development of new alloy compositions reflects the evolving demands of modern industrial applications.
Additions of copper and molybdenum to self-fluxing alloys are introduced to improve corrosion and pitting resistance, with these alloy powders having good abrasive and metal-to-metal wear resistance, although hot hardness and corrosion resistance are somewhat worse than those of cobalt-based alloys. Understanding the trade-offs between different alloy systems enables informed material selection for specific applications.
The most widely used carbide-containing nickel alloy is the Ni–Cr–Mo–C system, with Hastelloy Alloy C being typical in this system having good corrosion resistance and normally deposited by plasma spray technique, while carbide-containing alloys of the Ni–Cr–Mo–Co–Fe–W–C system are attractive as low-cost alternatives to cobalt-base alloys, with Haynes Alloy 716 being typical containing M7C3 or M6C phase depending on precise composition.
Composite Reinforcement Strategies
Incorporating hard particles into nickel alloy matrices represents an effective strategy for enhancing wear resistance. Incorporating nanoparticles into nickel alloys can potentially enhance their strength, wear resistance, and high-temperature performance, while combining nickel alloys with reinforcing elements like ceramic fibers can create composites with superior strength-to-weight ratios and improved performance at high temperatures.
Colmonoy 6 clad layers consisted of primary γ-nickel dendrites and interdendritic eutectics, Colmonoy 88 of mixed carbides and AI-1236 of partially melted WC particles and mixed carbides embedded in nickel-based microstructures, with wear tests showing abrasive wear mechanism and AI-1236 clad layers being much superior to Colmonoy 6 and Colmonoy 88 clad layers. The type and distribution of hard phases critically influence wear performance.
A number of these alloys are incorporated into CARBORIDE line of products where SPECIALLOY nickel alloys are compounded with tungsten carbide at percentages targeted to further enhance the abrasion resistance of the alloy and target the specific wear mode. Tailoring composite compositions to specific wear mechanisms enables optimized performance in targeted applications.
Enhancing High-Temperature Wear Resistance
High-temperature wear presents unique challenges that require specialized approaches. Many nickel alloy applications involve simultaneous exposure to elevated temperatures and severe wear conditions, demanding materials and treatments that maintain performance across this demanding operational envelope.
The improvement of high temperature wear resistance of Nickel-based coatings is mainly through the addition of hard ceramic phases and lubricants, with the addition of hard ceramic phase principally to maintain the high hardness of the coating under high temperature conditions and to avoid the coating from spalling in a large area during the abrasion process. The stability of hard phases at elevated temperatures is critical for maintaining wear resistance.
Compared with room temperature conditions, the types of hard ceramic phases added to enhance wear resistance at high temperature are relatively single with current research mainly focused on WC and TaC, though both TiC and NbC have melting points above 3000 °C and higher hardness with many studies indicating that in situ synthesized NiCrBSi/TiC and NiCrBSi/NbC coatings have good interfacial bonding. Expanding the range of ceramic reinforcements offers opportunities for further performance improvements.
Only solid lubricants can meet the wear resistance requirements of materials under high temperature, with researchers having tried to add various solid lubricants to nickel-based alloys for more than a decade since the beginning of the 21st century, exploring nickel-based self-lubricating alloy systems. Self-lubricating capabilities become increasingly important as operating temperatures increase.
Since soft metals soften at higher temperatures and their wear resistance decreases significantly in service environments above 500 °C, more existing studies have prepared coatings by adding soft metals together with other hard ceramic phases or lubricants, with the synergistic action of two or more lubricants stabilizing the high temperature wear resistance at a high level through systems such as Ag/MoS2/G, Ag/WS2/h-BN, Cu/c-BN/MoO3, Cu/MoS2, Cu/WS2, Mo2N/MoS2/Ag, and Ag/MoS2. Multi-component lubricant systems provide robust performance across wide temperature ranges.
Rare Earth Element Modifications
The addition of rare earth elements to nickel alloys and coatings has emerged as an effective method for enhancing wear resistance and other properties. These elements, though added in small quantities, can significantly influence microstructure and performance.
The addition of 1% La2O3 or 1% CeO2 to Nickel-based alloy (40% Ni-60% WC) improves the wear resistance. Rare earth oxides modify the solidification behavior and refine the microstructure, leading to improved mechanical properties and wear performance.
Rare earth elements influence multiple aspects of alloy behavior including grain refinement, modification of inclusion morphology, enhancement of coating adhesion, and improvement of oxidation resistance. Their effectiveness at low concentrations makes them an economically attractive option for alloy enhancement. The mechanisms by which rare earth elements improve wear resistance include microstructural refinement, modification of carbide and boride morphology, and enhancement of coating-substrate bonding.
Common Wear-Resistant Nickel Alloy Systems
Inconel 625
Inconel 625 is a nickel-chromium-molybdenum alloy renowned for its excellent combination of high strength, corrosion resistance, and fabricability. Inconel 625 is used in chemical processing, along with numerous other demanding applications. The alloy contains significant amounts of molybdenum and niobium, which provide solid solution strengthening and enhance resistance to pitting and crevice corrosion.
The wear resistance of Inconel 625 can be further enhanced through surface treatments such as nitriding, carburizing, or the application of hard coatings. Its excellent weldability makes it suitable for hardfacing applications where worn components need restoration or where new parts require protective coatings in high-wear areas.
Hastelloy C-22
Hastelloy C-22 is a versatile nickel-chromium-molybdenum-tungsten alloy with outstanding resistance to both oxidizing and reducing environments. The alloy's high chromium content provides excellent resistance to oxidizing media, while molybdenum and tungsten additions ensure superior performance in reducing conditions. This combination makes Hastelloy C-22 particularly valuable in chemical processing applications where components face aggressive corrosive-wear environments.
The wear resistance of Hastelloy C-22 benefits from its stable austenitic structure and the presence of multiple strengthening elements. In applications involving simultaneous corrosion and wear, this alloy often outperforms alternatives by maintaining surface integrity even under aggressive chemical attack combined with mechanical loading.
Nickel-Chromium-Molybdenum Alloys
The broader family of nickel-chromium-molybdenum alloys encompasses numerous compositions optimized for specific applications. These alloys leverage the synergistic effects of chromium for oxidation and corrosion resistance, molybdenum for strength and resistance to reducing acids, and nickel as the ductile, corrosion-resistant matrix.
Variations in the ratios of these primary elements, along with additions of other elements such as tungsten, iron, or cobalt, allow for fine-tuning of properties to match application requirements. Some formulations prioritize maximum corrosion resistance, while others emphasize high-temperature strength or wear resistance. The versatility of this alloy system makes it one of the most widely used for demanding industrial applications.
Nickel-Based Composite Materials
Nickel-based composites represent an advanced class of materials where hard particles are dispersed within a nickel alloy matrix. Common reinforcements include tungsten carbide, titanium carbide, chromium carbide, and various borides. These composites combine the toughness and corrosion resistance of the nickel matrix with the extreme hardness of ceramic particles.
The performance of nickel-based composites depends critically on factors such as particle size, volume fraction, distribution uniformity, and interfacial bonding between the matrix and reinforcement. Advanced processing techniques including laser cladding, plasma spraying, and powder metallurgy enable precise control over these parameters, allowing optimization for specific wear conditions.
Self-Fluxing Nickel Alloys
Surface Engineering has developed a full line of self-fluxing nickel alloys for hard surfacing, coating, and brazing, with the SPECIALLOY family providing options to enhance wear and corrosion resistance on surfaces exposed to challenging environments, ranging in hardness from 15 to 65 HRC and providing solutions for corrosion, abrasion, erosion, impact and cavitation or combinations of wear modes.
The addition of B and Si elements into the nickel alloy improves the fluxing properties, acting as deoxidizers, forming borosilicate, protecting the main alloying element against oxidation, and lowering the melting temperature together with chromium of pure nickel. These self-fluxing characteristics enable excellent wetting and bonding to substrates, making these alloys particularly suitable for thermal spray and fusion processes.
Deposit hardness of these alloys is as high as 60 HRC depending on chromium, boron and silicon contents, with alloys containing large amounts of boron and chromium being extremely abrasion resistant but having poor impact toughness. The ability to select from a range of hardness levels allows matching the coating to the specific wear mechanism and impact conditions of the application.
Process Optimization for Maximum Wear Resistance
Achieving optimal wear resistance requires not only selecting appropriate materials and treatments but also carefully controlling process parameters during application. The quality and performance of wear-resistant coatings depend heavily on deposition conditions, cooling rates, and post-treatment procedures.
Through synergistic parameter control, a 4.2 mm crack-free cladding layer was successfully achieved, with preheated multilayer cladding samples consisting of γ-Ni matrix, Ni3B, Cr7C3, CrB, and minor Cr23C6, which contribute to enhanced performance. Proper control of laser power, scanning speed, powder feed rate, and substrate preheating can eliminate defects while optimizing microstructure.
The finer structure produced by more rapidly cooling provides improved wear resistance in the final coating, with these same features also contributing to improved corrosion resistance. Understanding the relationship between cooling rate, microstructure, and properties enables process optimization for superior performance.
For thermal spray processes, parameters such as spray distance, particle velocity, substrate temperature, and post-spray heat treatment significantly influence coating quality. Optimizing these variables requires understanding their effects on coating density, adhesion strength, residual stress, and phase composition. Advanced process monitoring and control systems enable real-time adjustment to maintain optimal conditions throughout the coating operation.
Industrial Applications and Performance Requirements
Growth is driven by increasing demand from key industries like petrochemicals, aerospace, and marine engineering where wear resistance and corrosion protection are critical requirements, with the petrochemical sector representing 32% of total Nickel-based Wear-resistant Alloy Plate consumption, followed by marine engineering at 24%. Understanding the specific requirements of different industries helps guide material selection and treatment strategies.
Hardfacing finds extensive use in petrochemical & chemical industry, mining, steel industry, power plant, valve engineering, and marine industry. Each of these sectors presents unique combinations of wear mechanisms, operating conditions, and performance requirements that must be addressed through appropriate material and process selection.
In the aerospace industry, components such as turbine blades, landing gear, and fasteners require materials that maintain wear resistance at elevated temperatures while minimizing weight. The petrochemical industry demands resistance to combined corrosive-abrasive wear in processing equipment handling aggressive chemicals and abrasive particles. Marine applications require materials that resist erosion-corrosion in seawater environments while maintaining mechanical integrity under cyclic loading.
Power generation equipment faces wear from high-temperature combustion gases, erosive fly ash, and corrosive combustion products. Mining and mineral processing equipment must withstand extreme abrasive wear from hard rock and ore particles. Each application requires careful analysis of operating conditions to select appropriate alloys and surface treatments.
Quality Control and Performance Evaluation
Ensuring the effectiveness of wear resistance enhancement strategies requires comprehensive quality control and performance evaluation. Multiple testing methods and inspection techniques are employed to verify coating quality and predict service performance.
The test coupon shall be evaluated to ensure defect free hard face deposit using various techniques of Non Destructive Testing (NDT) including visual examination, liquid penetrant examination and ultrasonic testing, with desired hard faced metal deposit properties including surface hardness, microstructure and micro-hardness across the coating thickness measured to ensure it meets nuclear industry specifications.
Microstructural characterization through optical microscopy, scanning electron microscopy, and X-ray diffraction provides essential information about phase composition, grain structure, and defect presence. Mechanical testing including hardness measurements, tensile testing, and impact testing quantifies the strength and toughness of treated materials. Tribological testing using pin-on-disk, block-on-ring, or other wear test configurations simulates service conditions and measures wear rates under controlled conditions.
Adhesion testing verifies the bond strength between coatings and substrates, critical for ensuring coating integrity during service. Corrosion testing in relevant environments confirms that wear resistance enhancements do not compromise corrosion protection. Thermal cycling tests evaluate coating stability under temperature fluctuations typical of many applications.
Economic Considerations and Life Cycle Benefits
While implementing wear resistance enhancement strategies involves upfront costs for materials, processing, and quality control, the economic benefits typically far exceed these investments through extended component life, reduced maintenance, and improved operational efficiency.
Parts protected with Wall Colmonoy's nickel or cobalt hard-surfacing alloys last significantly longer than unprotected parts. The extended service life translates directly into reduced replacement costs, decreased downtime, and improved productivity. In critical applications, avoiding unexpected failures can prevent costly production interruptions and potential safety incidents.
APS can significantly contribute to the circular economy involving sharing, renting, reusing, repairing, refurbishing, and recycling existing materials and products for as long as possible, with extended product life cycles resulting in less waste, helping provide sustainability and promoting economic benefits. The environmental benefits of extending component life through wear-resistant treatments align with growing emphasis on sustainability and resource conservation.
Life cycle cost analysis should consider not only initial treatment costs but also maintenance frequency, replacement part costs, labor for repairs, production losses during downtime, and disposal costs for worn components. In many cases, premium wear-resistant treatments prove most economical over the component lifetime despite higher initial investment.
Future Trends and Emerging Technologies
The field of wear resistance enhancement for nickel alloys continues to evolve with ongoing research and development of new materials, processes, and technologies. Several promising directions are emerging that may significantly advance capabilities in coming years.
Additive manufacturing technologies are enabling new approaches to creating wear-resistant components with functionally graded compositions, allowing optimization of properties throughout the component rather than just at the surface. Advanced computational modeling and simulation tools are improving the ability to predict wear behavior and optimize alloy compositions and microstructures before expensive experimental trials.
Nanostructured coatings and nanocomposite materials offer potential for superior wear resistance through grain refinement and novel strengthening mechanisms. High-entropy alloys represent a new class of materials with unique combinations of properties that may provide exceptional wear resistance in extreme environments. Machine learning and artificial intelligence are being applied to accelerate alloy development and process optimization by identifying patterns in large datasets from experiments and simulations.
In-situ monitoring and adaptive process control systems are improving coating quality and consistency by detecting and correcting deviations in real-time during deposition. Advanced characterization techniques including atom probe tomography and high-resolution transmission electron microscopy are revealing nanoscale features that influence wear behavior, enabling more targeted microstructural engineering.
Best Practices for Implementation
Successfully implementing wear resistance enhancement strategies requires systematic approaches that consider all aspects from initial assessment through long-term monitoring. Several best practices have emerged from industrial experience:
Thorough Application Analysis: Begin with comprehensive characterization of the wear environment including operating temperatures, contact pressures, sliding velocities, presence of abrasive particles or corrosive media, and loading conditions. Understanding the dominant wear mechanisms guides appropriate material and treatment selection.
Material Selection: Choose alloy compositions and coating materials based on the specific wear mechanisms and environmental conditions identified. Consider trade-offs between hardness, toughness, corrosion resistance, and cost. Consult material suppliers and industry experts to leverage their experience with similar applications.
Process Qualification: Develop and validate processing procedures through systematic experimentation and testing before full-scale implementation. Document critical process parameters and establish acceptable ranges. Train operators thoroughly on proper techniques and quality requirements.
Quality Assurance: Implement comprehensive inspection and testing protocols to verify coating quality and properties. Maintain detailed records of processing conditions and test results to enable continuous improvement and troubleshooting if problems arise.
Performance Monitoring: Track component performance in service through regular inspections and wear measurements. Use this feedback to refine material selection and processing procedures for optimal results.
Conclusion
Enhancing wear resistance in nickel alloys requires a comprehensive approach combining advanced surface treatments, strategic material selection, microstructural optimization, and careful process control. The wide range of available techniques—from hardfacing and laser cladding to thermal spraying and heat treatment—provides flexibility to address diverse application requirements.
Success depends on understanding the specific wear mechanisms and operating conditions of each application, then selecting and implementing appropriate enhancement strategies. The synergistic effects of proper alloy composition, optimized microstructure, and high-quality surface treatments can dramatically extend component life and improve operational efficiency.
As industries continue to push the boundaries of operating conditions with higher temperatures, more aggressive environments, and increased performance demands, the importance of wear-resistant nickel alloys will only grow. Ongoing advances in materials science, processing technologies, and characterization techniques promise continued improvements in wear resistance capabilities.
For engineers and materials specialists working with nickel alloys, staying informed about emerging technologies and best practices is essential. By leveraging the full range of available enhancement strategies and continuously refining approaches based on performance feedback, it is possible to achieve exceptional wear resistance that meets even the most demanding application requirements while optimizing life cycle costs and sustainability.
For additional information on advanced materials and surface engineering, visit the ASM International website, which provides extensive resources on metallurgy and materials science. The National Association of Corrosion Engineers offers valuable insights into corrosion-resistant materials and protective coatings. ScienceDirect provides access to the latest research publications on nickel alloys and wear resistance technologies. The Minerals, Metals & Materials Society hosts conferences and publishes research on advanced materials processing. Finally, Springer offers numerous journals and books covering materials engineering and surface treatments.