Article
Materials Science, Multidisciplinary
Yuan Yu, Jun Wang, Jin-Shan Li, Hong-Chao Kou, Si-Zhe Niu, Sheng-Yu Zhu, Jun Yang, Wei-Min Liu
Summary: The study found that the AlCoCrFeNiTi0.5 alloy has better wear resistance than Fe77Ni23 solid solution alloy, Ti-46Al-2Cr-2Nb intermetallic alloy, or a wear-resistant steel AISI 52100, especially under higher loads. The wear rate increases slowly with increasing loads and remains steady at different sliding speeds. The wear mechanisms include abrasive wear, adhesive wear, and oxidative wear.
Article
Engineering, Mechanical
Junwei Miao, Hui Liang, Aijun Zhang, Junyang He, Junhu Meng, Yiping Lu
Summary: The high-entropy alloy EHEA exhibits minimal friction and wear when sliding against SiC at room temperature. However, as the temperature increases, the wear rate gradually increases while the friction coefficient sharply decreases above 600 degrees Celsius.
TRIBOLOGY INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Ping Ren, Yanxin Si, Ganggang Wang, Mao Wen, Weiwei Wang, Linhui Yan, Xiaoyang Yang, Qiyao Song, Zhaohai Li, Shangzhou Zhang
Summary: This study successfully prepared self-lubricating TiVCrZrW HEA films by optimizing the vacuum annealing temperature. The research found that the films exhibited significantly lower coefficient of friction in a three-phase contact environment, which was due to the formation of lubricating bimetallic oxides and a higher amount of oxides.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Mechanical
Emin Salur
Summary: The effect of different cooling/lubrication conditions on the machining performance and surface quality of Inconel 718 superalloy was investigated. The results showed that LN2-assisted cryogenic cooling significantly reduced tool wear, surface roughness, cutting temperature, and cutting energy.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Engineering, Mechanical
Chao-Min Yang, Xiu-Bo Liu, Yi-Fan Liu, Zheng-Xing Zhu, Yuan Meng, Hai-Bin Zhou, Shi-Hong Zhang
Summary: To prove the feasibility of using Cu to improve tribological properties, FeCoCrNiCux coatings were created on SUS304 using laser cladding. The effects of Cu on the microstructure were analyzed, and the tribological properties were systematically investigated. The results showed that the coatings consisted mainly of FCC solid solution, with Cu/Ni segregation appearing on grain boundaries and dendrites. The exceptional wear resistance of the FeCoCrNiCu coating can be attributed to its high work hardening capacity and ductility. At high temperatures, the friction coefficient gradually decreased with increasing Cu content, due to the mechanical combination of hard and ductile phases resulting in improved strength and wear resistance in the deformation layer.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Engineering, Mechanical
Deepak Kumar Chandel, Lalit Thakur, Vinod Kumar
Summary: In this study, the tribological behavior of the AlCrCuNiFe high entropy alloy TIG weld cladding deposited on a 1045 steel substrate was investigated. The optimized cladding exhibited lower weight loss and higher microhardness, indicating improved wear resistance.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Engineering, Mechanical
Min Zhang, Zisi Jiang, Muye Niu, Hao Chen, Xinghua Zhang
Summary: By doping non-metallic element C in high-entropy alloys, the preparation cost can be reduced and the mechanical properties can be improved. The C-doped alloy sintered at 1200 degrees C showed improved compressive strength and strain rate, which was achieved through solution strengthening and carbide pegging dislocations. Compared to the undoped alloy, the C-doped alloy exhibited better wear resistance at high temperatures.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Wen-jing Li, Jin-hua An, Li Zhang, Jian Tu, Lin-zhi Wang, Shu-kun Zheng, Zhi-ming Zhou
Summary: The microstructure, mechanical and tribological properties of CoCrFeNi high-entropy alloy (HEA) fabricated by different preparing processes are investigated. Results show that the as-TMTed sample with fine grains decorated with twins exhibits optimal strength-ductility synergy and wear ability. The as-MCed sample with coarse grains has excellent ductility (75%), while the as-SLMed sample with nanosized cellular substructure shows superior yield strength (472.27 MPa). However, the presence of micropores in the as-SLMed sample leads to poor tribological performance.
Article
Materials Science, Multidisciplinary
Chao Jie Liang, Cheng Lei Wang, Mu Lin Liang, Ying Guang Xie, Wei Jie Liu, Ji Jie Yang, Xin Li, Chong Liu, Sheng Feng Zhou
Summary: A (Co1.5FeNi)(90)Ti6Al4 high entropy alloy was successfully prepared using vacuum arc melting technology and subjected to aging heat treatment at 800 degrees C. The results show better phase stability and excellent tribological properties of the alloy. The alloy consists of a gamma matrix and gamma' precipitates, with the shape of precipitates changing from irregular elliptical to regular cubic with increasing aging time.
Article
Materials Science, Coatings & Films
Jin-Kun Xiao, Tian-Tian Li, Yu-Qing Wu, Juan Chen, Chao Zhang
Summary: The high-entropy alloy coatings based on CoCrFeNi exhibit different friction and wear behaviors due to the presence of different alloying elements. Al addition leads to low cohesive strength and high wear rate, while Mn and Mo addition contribute to enhanced wear resistance.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2021)
Article
Engineering, Mechanical
Kamil Leksycki, Radoslaw W. Maruda, Eugene Feldshtein, Szymon Wojciechowski, Witold Habrat, M. K. Gupta, Grzegorz M. Krolczyk
Summary: This study evaluates the tribological interactions and machinability of Ti6Al4V titanium alloy in finish turning, identifying the influence of cooling/lubricating conditions on tool wear, cutting forces, and chip thickness ratios.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Materials Science, Coatings & Films
Yongming Zou, Zhaoguo Qiu, Chunjie Huang, Dechang Zeng, Rocco Lupoi, Nannan Zhang, Shuo Yin
Summary: In this study, high entropy alloy composite coatings were successfully fabricated using cold spray technique, showing higher hardness and improved wear-resistance properties compared to pure alloy coatings. The reinforcing effect of Al2O3 particles and the formation of a tribo-layer were the main reasons for the improvements in the composite coatings.
SURFACE & COATINGS TECHNOLOGY
(2022)
Review
Materials Science, Multidisciplinary
Dawei Luo, Qing Zhou, Zhuobin Huang, Yulong Li, Yulin Liu, Qikang Li, Yixuan He, Haifeng Wang
Summary: This paper reviews the properties and development status of high entropy alloy (HEA) coating systems for tribological applications and summarizes the correlation between coating composition, mechanical properties, and friction and wear characteristics.
Article
Engineering, Mechanical
Yunqing Tang, D. Y. Li
Summary: High-entropy alloys (HEAs) have superior properties and high wear resistance, but further understanding of their responses to different wearing conditions is needed for effective utilization. Research on nano-wear and nano/micro-machining under different conditions is limited, affecting the extension of HEAs to nanotechnological areas. This study using molecular dynamics simulations provides insight into the nano-tribological behaviors of HEAs under different wearing conditions, helping to mitigate wear or improve machining efficiency.
Article
Materials Science, Multidisciplinary
Fei Song, Xuefeng Yang, Jianchen Cong, Jun Sun, Shibo Shao, Wenlong Dong, Zhiyuan Wang, Yeqi Zhu, Min Wu
Summary: By imitating the microstructure of typical biological surfaces, different textures were studied on the surface of YT15 alloy steel. The textured surface not only reduces friction and wear, but also improves hydrodynamic lubrication. The shape and arrangement of the texture have a significant impact on the tribological properties of the workpiece surface under different working conditions.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
