Article
Chemistry, Physical
Haotian Guan, Linjiang Chai, Juying Wu, Xingyu Gong, Kang Xiang, Lu Wu, Hucheng Pan, Yuqiong Li, Qiusen Wang
Summary: In this study, two Nb(Ta)TiZr medium-entropy alloy coatings were successfully fabricated on a commercially pure Zr sheet using pulsed laser cladding. The coatings showed good metallurgical bonding to the substrate and exhibited improved hardness and wear resistance. The addition of Ta resulted in slightly refined grains in the coatings, and the phase constitutions agreed with theoretical calculations. The enhanced properties of the coatings were attributed to grain refinement strengthening and solid solution strengthening with denser low angle boundaries, as well as the formation of complete oxide films on the coatings.
Article
Materials Science, Multidisciplinary
Y. B. Cong, Y. Z. Chen, G. B. Shan, W. X. Zhang, F. Liu, Q. Li, X. J. Xu
Summary: In this study, a bulk nanocrystalline Fe-1 at% Zr alloy was prepared and its wear behaviors under different testing conditions were investigated. The results show that the alloy exhibits superior wear resistance, with abrasive wear and interfacial layer delamination being the main wear mechanisms.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Yingqiao Zhang, Jie Guo, Gangdong Xu, Zhiyong Li, Shouzheng Wei
Summary: The laser cladding method is an effective approach to improve the surface properties of Mg and Mg alloys by preparing amorphous matrix composite coatings. The corrosion and wear resistance of these coatings are significantly influenced by rare earth elements, which affect the quantity, morphology, and distribution of crystalline phases. The presented work focused on preparing Zr55Cu30Al10Ni5 + x wt% Nd2O3 (x = 0, 0.5, 1, 1.5, 2, 3) composite coatings on AZ91D Mg alloy through laser cladding. The coatings consisted of dendrites, cellular grains, Nd enriched spherical structure, and amorphous matrix. Addition of appropriate Nd2O3 could refine crystalline microstructure size, purify oxygen impurities, and increase amorphous content, but excessive addition caused aggregation and abnormal growth of crystalline phases, deteriorating the glass forming ability. The coating with 1.5 wt% Nd2O3 exhibited the highest amorphous content, lowest crystalline phase content, and the most excellent corrosion resistance. The wear resistance of the coatings was greatly improved compared to the Mg substrate, but not linearly related to hardness and did not fully follow Archard's wear equation.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Wengao Zhang, He Wei, Ruichun Su, Zulai Li, Quan Shan, Fei Zhang, Xiwen Yang
Summary: The adsorption behavior of oxygen on Zr41.2Ti13.8Cu12.5Ni10Be22.5 (Vit1) (001) and Zr (110) surfaces was studied using DFT First-principles calculations method. Electrochemical corrosion and wear tests were performed to investigate the corrosion and wear mechanism of Vit1 and Zr-1. The results revealed that O adsorption on Ti and Zr atoms is more stable than on Cu and Ni atoms, and the corrosion resistance and wear performance of Vit1 are superior to Zr-1. These findings provide important guidance for the corrosion and wear resistance of Zr-based bulk amorphous materials.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Coatings & Films
Keyao Li, Jun Liang, Jiansong Zhou
Summary: Fe-based amorphous composite coatings were prepared by laser cladding technology with different Fe to Cr ratios to study the effect of Cr content on glass forming ability and mechanical properties. The coating exhibited the best glass forming ability and hardness when the Fe to Cr ratio was 0.33, with appropriate Cr content effectively inhibiting the formation of intermetallic compounds and enhancing wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Engineering, Mechanical
Bing -yuan Han, Xiang-han Gao, Shu-ying Chen, Meng-qi Cong, Ren-xing Li, Xiao Liu, Wei-xing Hang, Fang -fang Cui
Summary: This paper investigated the microstructure and tribological behavior of Ni60 alloy coating prepared by plasma spray on the surface of aluminum alloy. The results showed that the coating thickness and spraying power had an impact on the coating performance, with multiple phases and materials present in the coating. The coating had enhanced hardness and oxidation resistance, but also had a higher porosity. Under high load, the coating exhibited increased wear and friction coefficient. Moderate spraying power improved the coating's wear resistance.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Chemistry, Physical
S. P. Wang, C. Y. Li, J. L. Li, H. B. Wang, Y. Li, S. Z. Kou
Summary: The mechanical properties of the (ZrCuNiAl)Tm3 bulk amorphous alloy at cryogenic temperature are significantly dependent on temperature and strain rate, with strain rate softening phenomenon observed under dynamic loading. The compressive strength of the alloy increases significantly with the decrease of temperature under dynamic loading, attributed to the strong interatomic binding force between the alloy elements.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Jun-jie Xu, Jia-jie Kang, Wen Yue, Zhi-qiang Fu, Li-na Zhu, Ding-shun She
Summary: Two kinds of Fe-based amorphous alloy coatings were prepared by CS and HVOF techniques, showing different wear mechanisms at high temperatures. CS coatings had higher hardness and lower wear rate at room temperature, but exhibited higher wear rate at 673 K.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Materials Science, Multidisciplinary
Chao Han, Li Ma, Xudong Sui, Bojiang Ma, Guosheng Huang
Summary: A low energy density laser re-melting method was used to improve the performance of cold spraying FeCoCrMoBCY FAA coating on 40Cr substrate, resulting in improved abrasion resistance and reduced corrosion rate. However, it was unable to completely eliminate the penetrated diffusion passage. Further optimization is needed to enhance the anticorrosion performance of this method.
Article
Chemistry, Physical
Tao Wang, Chao Wang, Juanjuan Li, Linjiang Chai, Xing Hu, Yanlong Ma, Yun Huang
Summary: A NiCo coating was successfully prepared on the Inconel 718 substrate by pulsed laser cladding, with higher hardness and better wear resistance compared to the substrate. The compressive residual stress on the coating's surface prevents crack generation and improves fatigue strength.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Meilin Shan, Chunzhi Zhang, Ning Wang, Lijun Zhang, Wensheng Li, Xiaoshuang Yin
Summary: This paper studies the effect of different TiC content on the microstructure, phase composition, hardness, composition distribution, and wear resistance of Fe-Cr-Mo-B-C amorphous-nanocrystalline coating. The results show that the addition of TiC lowers the micro hardness of the coating, but the hardness first increases and then decreases with the increase of TiC content, with the highest value occurring at coating #4. Coating #3 exhibits the lowest friction coefficient and wear volume, indicating the best wear resistance.
Article
Materials Science, Coatings & Films
Chaoqun Xia, Qianying Liu, Tianshuo Song, Bohan Chen, Shuguang Liu, Qiang Li
Summary: This study aims to improve the corrosion and wear resistance of alloys through modified surface thermal treatment. By optimizing the process parameters, a thick and dense composite film was successfully generated on the alloy surface, leading to significant improvement in corrosion resistance and wear resistance. The study highlights the potential of thermal treatment for extending the service life of alloys.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Engineering, Mechanical
Z. Y. Ren, Y. L. Hu, Yonggang Tong, Z. H. Cai, Jian Liu, H. D. Wang, J. Z. Liao, S. Xu, L. K. Li
Summary: In order to enhance the microhardness and wear resistance of TC4 alloy, a NbMoTaWTi high-entropy alloy coating was produced on the surface of TC4 alloy through laser cladding. The coating exhibited a single BCC phase with fine dendrites dominating the top microstructure and petal-like coarse dendrites in the bottom near the interface. The microhardness of the coating reached 600 HV, 72% higher than that of the substrate. The coating's wear surface was smooth and adhered to abrasive material. The specific wear rate of the coating decreased by 121.9% compared to the substrate, with oxidative wear and adhesive wear being the primary wear mechanisms.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Engineering, Mechanical
Xiaobin Liu, Jiazi Bi, Ziyang Meng, Ran Li, Yan Li, Tao Zhang
Summary: In this study, a Co-based amorphous powder with high glass-forming ability was prepared by gas-atomization and used to fabricate a large-area amorphous coating through laser cladding. The effect of different laser parameters on the glass formation of the coating was investigated, and the resulting coating exhibited extremely high microhardness and wear resistance. Clarification of the wear-failure mechanism of the Co-based coating was achieved through microstructural and element-distribution analysis of various worn surfaces.
TRIBOLOGY INTERNATIONAL
(2021)
Article
Chemistry, Physical
Jianyan Xu, Wenping Liang, Qiang Miao, Haiyang Yu, Yuanyuan Sun, JiaYao Yu, Jingli Li, Mengjuan Yin, Yinghu Wang, Xiguang Gao, Yindong Song
Summary: Al20Cr5Fe50Mn20Ti5 medium-entropy alloy (MEA) coatings with different preparation process parameters were successfully fabricated, and their properties were characterized. The coatings exhibited good metallurgical bonding and thermal stability, and the wear properties were improved by refining the grain size and increasing the dislocation density. Excessive fusion of titanium elements into the coating, however, led to coating failure.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Biomedical
Jose D. Avila, Kevin Stenberg, Susmita Bose, Amit Bandyopadhyay
Summary: In this study, HA reinforced Ti64 composites were prepared using additive manufacturing technology to enhance both biocompatibility and wear resistance. The addition of HA resulted in increased hardness, the formation of a lubricating film, and a significant reduction in wear rates, promoting bone tissue-implant response and enhancing bone surface properties.
ACTA BIOMATERIALIA
(2021)
Article
Materials Science, Ceramics
Jose D. Avila, Amit Bandyopadhyay
Summary: Directed energy deposition (DED) was utilized to produce niobium carbide (NbC)-reinforced Ti6Al4V (Ti64) metal-matrix-composite (MMC) structures, with the objective of enhancing Ti64's wear and oxidation resistance. Results indicated that the addition of NbC particles aided in increasing Ti64's resistance to plastic shear and led to a reduction in specific wear rate.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2022)
Article
Engineering, Biomedical
Sushant Ciliveri, Amit Bandyopadhyay
Summary: This study evaluated the mechanical properties of additively manufactured porous Ti6Al4V structures under compression and shear loading. The results showed that shear behavior is more sensitive to variations in cell size, while elastic modulus is more sensitive to changes in strut size. The study also found that a pore size of 670 μm demonstrated the highest osteoblast cell viability and bacterial cell viability was higher in porous structures compared to dense Ti.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Amit Bandyopadhyay, Susmita Bose, Roger Narayan
Summary: This article reviews the impact of technological development on the manufacturing of biomedical devices and discusses the progress and regulatory issues of 3D printing biomaterials and medical devices.
Article
Nanoscience & Nanotechnology
David Svetlizky, Baolong Zheng, Alexandra Vyatskikh, Mitun Das, Susmita Bose, Amit Bandyopadhyay, Julie M. Schoenung, Enrique J. Lavernia, Noam Eliaz
Summary: Directed energy deposition (DED) has become an important branch of additive manufacturing (AM) and is widely used in the design and fabrication of various materials. Successful DED operation requires a good understanding of critical phenomena such as laser-material interactions, alloy solidification, welding metallurgy, and microstructure-mechanical properties relations. This comprehensive review focuses on materials design via DED, including a survey of different compositions and highlights the challenges and opportunities in this area.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Coatings & Films
Arjak Bhattacharjee, Amit Bandyopadhyay, Susmita Bose
Summary: Titanium alloys have excellent fatigue and corrosion resistance, high strength to weight ratio, and poor osseointegration ability, which can lead to implant loosening. Hydroxyapatite coating on titanium surfaces is commonly used to enhance osseointegration. The addition of zinc ions and fluoride improves the biological properties of hydroxyapatite. Parametric optimizations are used to fabricate zinc and fluoride doped hydroxyapatite-coated titanium, resulting in coatings with optimized thicknesses. The doped coatings show higher antibacterial efficacy and osteoblast viability compared to pure hydroxyapatite-coated samples. These coatings have potential applications in load-bearing implants for revision surgeries and immune-compromised patients.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Kellen D. Traxel, Amit Bandyopadhyay
Summary: The desire for higher application temperatures and complex geometries for metallic materials has driven significant development in additive manufacturing (AM) of metal-ceramic composites. However, there is limited understanding of the process-microstructure-properties relationships for these materials and processing strategies. In this study, the processing window and high-temperature oxidation performance of an in situ reactive, oxidation-resistant titanium metal-matrix composite reinforced with boron nitride (BN) and boron carbide (B4C) were investigated via selective laser melting (SLM) to understand the effects of processing parameters on the in situ reactive characteristics and their influence on build reliability and high-temperature oxidation performance. Process optimization resulted in composites with high relative density and improved high-temperature oxidation resistance compared to the base material.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Review
Engineering, Manufacturing
Amit Bandyopadhyay, Yanning Zhang, Bonny Onuike
Summary: Bimetallic structures are in high demand for current industrial applications due to their unique properties. However, welding techniques face challenges in joining dissimilar metals, leading to heat-affected zone management and brittle intermetallic phase issues. Metal additive manufacturing (AM) has emerged as a promising solution for processing bimetallic structures. This review provides insights into various processing strategies, challenges, and future directions for the implementation of AM technologies in bimetallic structures.
VIRTUAL AND PHYSICAL PROTOTYPING
(2022)
Article
Materials Science, Ceramics
Ali Afrouzian, Kellen D. Traxel, Amit Bandyopadhyay
Summary: In this study, DED-based AM was used to process Martian regolith-Ti6Al4V composites to investigate their processability and properties. The results showed that the surface roughness and hardness of the composites increased with the weight percentage of Martian regolith, while maintaining similar abrasive wear performance to Ti6Al4V. The study demonstrated the potential of laser-based AM for fabricating Ti64-Martian regolith composites with comparable properties.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2022)
Article
Engineering, Manufacturing
Yanning Zhang, Cory Groden, E. Nyberg, A. Bandyopadhyay
Summary: Bimetallic structures of Ti6Al4V-W7Ni3Fe were fabricated using directed energy deposition-based additive manufacturing. The research demonstrates the ability to control the mechanical and thermal performance of the bimetallic structures, with higher thermal conductivity and variable failure strain compared to pure Ti6Al4V.
VIRTUAL AND PHYSICAL PROTOTYPING
(2023)
Review
Materials Science, Multidisciplinary
Amit Bandyopadhyay, Indranath Mitra, Stuart B. Goodman, Mukesh Kumar, Susmita Bose
Summary: The increasing demand for joint replacement surgeries, musculoskeletal repairs, and orthodontics worldwide drives the need for evolving technologies in healthcare. Although metallic orthopaedic materials have a shared application history with the aerospace industry, their suitability in bone tissue replacements and regenerative therapies remains unchallenged due to their superior mechanical properties. However, improvement in biocompatibility is crucial for the development of the next generation of metallic biomaterials.
PROGRESS IN MATERIALS SCIENCE
(2023)
Review
Engineering, Manufacturing
Amit Bandyopadhyay, Indranath Mitra, Jose D. Avila, Mahadev Upadhyayula, Susmita Bose
Summary: Porous and functionally graded materials have wide applications in biomedical devices, especially in orthopedic and dental implants, due to their desirable mechanical, corrosive, and biocompatible properties. Among various porous materials, porous polymers lack mechanical strength, porous ceramics are brittle, while porous biocompatible metals show tailorable strength and toughness. This review discusses and compares different manufacturing methods for porous or functionally graded metals, exploring their effects on microstructure, composition, porosity, biocompatibility, and mechanical properties. The understanding gained from these investigations in bone implant applications can also be extended to other devices beyond the biomedical field.
INTERNATIONAL JOURNAL OF EXTREME MANUFACTURING
(2023)
Article
Engineering, Biomedical
Masud Rana, Santanu Karmakar, Amit Bandyopadhyay, Amit Roychowdhury
Summary: This paper presents an approach for designing patient-specific implants with inhomogeneous porosity, which can effectively solve the problem of stress shielding in orthopaedic implants. By using orthotropic auxetic structures and computed optimization, the proposed approach reduced stress shielding and improved osseointegration.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2023)
Article
Engineering, Biomedical
Ali Afrouzian, Amit Bandyopadhyay
Summary: This study used directed energy deposition (DED) as an additive manufacturing technique to create ceramic-reinforced composites of Ti6Al4V with hydroxyapatite, alumina, and silicon nitride. The composites had tailored microstructures to improve bio-tribological and antibacterial properties. Different composites were made with various ceramic reinforcements, and microstructural observations showed good bonding and increased hardness. The Si3N4-added composites also demonstrated antibacterial response against Staphylococcus aureus. These multifunctional ceramic-reinforced composites are suitable for biomedical devices like hip implants.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2023)
Article
Multidisciplinary Sciences
Lile Squires, Ethan Roberts, Amit Bandyopadhyay
Summary: This study demonstrates a complex radial interface concept with in situ mechanical interlocking, resulting in a prestressed compressive effect. The difference in thermal expansion coefficient between stainless steel and mild steel creates residual stresses. The bimetallic structures show a significant improvement in compressive strength compared to monolithic structures.
NATURE COMMUNICATIONS
(2023)
Article
Materials Science, Coatings & Films
Yanchun Xie, Xiaodong Wang, Shenshen Cui, Jiali Hu, Yongcun Wei, Yi Lian, Anwu Xuan, Bin Yu, Erlin Zhang
Summary: In this study, Ti-xFe (x = 3,5,9 wt%) alloys were surface modified by micro-arc oxidation (MAO) to improve their antimicrobial properties and biocompatibility. The results showed that increasing the oxidation voltage greatly enhanced the roughness and hydrophilicity of Ti-xFe-MAO alloys. The Ti-xFe alloys micro-arc oxidized at 250 V and 300 V exhibited improved corrosion resistance and excellent antimicrobial and cytocompatibility properties, making them suitable for orthopedic implant materials.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuting Hao, Zuoyan Ye, Lili Wang, Minheng Ye, Hui Dong, Chao Wang, Yunchen Du
Summary: This study focuses on the modification of PEO coatings on Ta-12W alloy using NH4F additive. The results show that ultra-low porosity coatings can be prepared by optimizing the NH4F content. The formation process of specific structures on the coating surface is discussed, and the effects of NH4F concentration and treatment duration on coating characteristics are investigated.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Yuanzhuo Liu, Linjiang Chai, Tao Yang, Chaodan Hu, Chuanmei Wang, Guoqiang Xi
Summary: By employing a pulsed laser, laser cladding was performed on IN718 alloy pre-coated with CrCoNi-TiC/SiC powders and three defect-free coatings were successfully prepared. The addition of TiC and SiC powders generated fine carbides dispersed in the coatings and led to changes in grain and substructure morphologies, resulting in increased hardness and wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
M. Ghaemi, A. Lopez-Cazalilla, K. Sarakinos, G. J. Rosaz, C. P. A. Carlos, S. Leith, S. Calatroni, M. Himmerlich, F. Djurabekova
Summary: The use of high-power impulse magnetron sputtering can result in dense and uniform niobium films on all surfaces of superconducting rf cavities, as simulated and investigated in this study.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Jiaheng Du, Xinli Fan, Dongqin Xiao, Wuxiang Wang, Yiran Yin, Zhong Li, Kui He, Yanfei Tan, Jiyuan Yan, Gangli Liu, Ke Duan
Summary: This study investigated the electrophoretic deposition (EPD) of magnesium oxide (MgO) coatings on micro-arc oxidized titanium (MAO-Ti) and evaluated their in vitro antibacterial properties and biocompatibility. The results showed that MgO coatings significantly reduced bacterial numbers and biofilm formation, while also demonstrating good cytocompatibility and induction of osteoblast mineralization.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Samiksha Moharana, Yuichi Otsuka, R. Gnanamoorthy
Summary: The addition of titania to HAp coatings improves their wear resistance and reduces damage to titanium implants caused by debris generation. This study evaluates the fretting wear resistance of titania-added HAp suspension plasma spray coating and finds that it exhibits reduced friction coefficient and increased wear resistance.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Li-Ping Wu
Summary: The functional hazenite coating deposited on AZ31 Mg alloy showed improved roughness and hydrophilicity, enhanced biocompatibility, reduced degradation rate, and decreased susceptibility to stress corrosion cracking.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Ning Tian, Delei Xu, Jinfei Wei, Bucheng Li, Junping Zhang
Summary: This study reports the preparation of a superhydrophobic and anti-bacterial fabric for face masks. The fabric exhibits high superhydrophobicity and excellent moisture resistance, enabling functionality effectiveness in cold weather conditions. The fabric also demonstrates remarkable anti-bacterial activity against E. coli, attributed to the synergistic effect of superhydrophobicity and embedded ZnO nanoparticles. This superhydrophobic anti-bacterial fabric holds great potential for various practical applications in personal protective equipment, healthcare, and disease prevention.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Katharina Beck, Anke S. Ulrich, Andreas K. Czerny, Emma M. H. White, Martin Heilmaier, Mathias C. Galetz
Summary: Refractory metal based alloys have great potential as structural materials for high-temperature applications due to their high melting points. However, they are prone to catastrophic oxidation at around 700 degrees C. This study investigated the effect of aluminium diffusion coatings on the oxidation resistance of pure molybdenum, niobium, tantalum, and tungsten. The results showed that the aluminization improved the oxidation behavior and decreased the oxide growth rate for molybdenum and tantalum.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Wenwen Shuai, Haijun Dou, Zhichen Guan, Wei Qian, Zhibao Li, Yinqun Hua, Jie Cai
Summary: This study synthesized (Y1-xLax)3Al5O12 (x = 0, 0.1, 0.2, 0.3) materials by doping lanthanum ions, and found that the doped materials exhibited improved mechanical properties and thermal expansion coefficient, as well as enhanced resistance to CMAS corrosion. These materials have potential applications.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Xianglei Liu, Jiahui Ding, Wanbo Hou, Xinhao Shi, Tao Feng, Xiangyuan Meng, Shifeng Wen, Mingde Tong, Zhufeng Yue
Summary: A composite coating was developed to improve the adhesion, wear resistance, and corrosion resistance, which exhibited significant enhancements in these properties.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hongxuan Xing, Jidong Li, Xianwei Hu, Liang Tian, Renyun Zhang, Yiyong Wang
Summary: By depositing a Cu/Co-Mo corrosion-resistant plating layer on the surface of 6061 Al alloy, the bonding strength between the alloy and the plating layer can be improved and the corrosion resistance can be enhanced. The composite coating forms an obvious three-layer structure with Co-Mo coating exhibiting amorphous characteristics and Co3Mo phase composition. The composite coating improves the corrosion resistance and hardness of the substrate, effectively protecting the 6061 Al alloy.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Fan Yang, Debin Wang, Tianrun Li, Baijun Yang, Suode Zhang, Jianqiang Wang
Summary: The impact-corrosion behavior of monolayer and hierarchical Fe-based amorphous coatings fabricated by HVAF was investigated in 3.5 wt% NaCl solution. The monolayer coating exhibits corrosion failure with increased impact energy, while the hierarchical coating shows improved resistance. However, at high impact energies, both coatings experience corrosion degradation.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Shoaib Ahmad, Muddasir Nawaz, Solaiman Mohammad, R. A. Shakoor, Ramazan Kahraman, Talal Mohammed Al Tahtamouni
Summary: This research presents a novel self-healing anti-corrosion composite coating that demonstrates higher inhibition efficiency and self-healing effect, providing protection for metallic structures against corrosive environments.
SURFACE & COATINGS TECHNOLOGY
(2024)
Article
Materials Science, Coatings & Films
Hui-Wen Peng, Chun-Hway Hsueh
Summary: A series of (CoCrNi)100-x-ySixNdy medium entropy alloy films with manipulated metalloid element, Si, and rare earth element, Nd, were synthesized using magnetron three-target co-sputtering. The films showed different structures and mechanical properties with varying Si and Nd contents. The optimized mechanical properties were observed in the film with Si0.61Nd5.14, attributed to precipitation strengthening and grain refinement.
SURFACE & COATINGS TECHNOLOGY
(2024)
