润滑科技信息平台

FeCrMnVSix high entropy alloy coatings with improved high temperature tribological properties via synergistic effect of in situ-formed SiO2 and bimetallic oxides

出版日期: 2023-09-26

DOI: https://doi.org/10.1016/j.triboint.2023.108980

作者: Yanyan Liu; Zhongping Yao; Peng Zhang; Shouyuan Lin; Mingyu He; Xinzhi Wang; Songtao Lu; Xiaohong Wu;

The laser cladding technique fabricates the FeCrMnVSix high entropy alloy (HEA) coatings on 410 alloy substrates. Tribological tests reveal that the coefficient of friction (COF) of the FeCrMnVSix HEA coatings decreases significantly with increasing Si content. However, the wear rates of HEAs decrease and then increase with the increase of Si content, which means that the excessive Si will weaken the wear resistance of the HEAs in high-temperature environments. The FeCrMnVSi1.0 HEA coating possesses the lowest wear rate (2.26×10-5 mm3N-1m-1), which is 43.36% lower than that of the substrate at 800°C. The synergistic effect of in situ-formed SiO2 and bimetallic oxides endows FeCrMnVSi1.0 HEA coating with outstanding tribological properties.

Close-to-Atomic Precision Surface Achieved through a Neutral and Eco-friendly Slurry in Chemical Mechanical Polishing of TC4 Alloy

Pub Date: 2023-09-26 DOI: https://doi.org/10.1016/j.triboint.2023.108980

[Jinwei Liu, Liyun Liu, Peng Zhang, Yupeng He, Deping Yu, Chen Xiao]

Ultrahigh Subcooling Dropwise Condensation Heat Transfer on Slippery Liquid-like Monolayer Grafted Surfaces

Pub Date: 2023-09-26 DOI: https://doi.org/10.1016/j.triboint.2023.108980

[Ting-en Huang, Yisheng Lu, Zhaozhuo Wei, Dawei Li, Qin-Yi Li, Zhenying Wang, Koji Takahashi, Daniel Orejon, Peng Zhang]

Strength Enhancement of Laser Powder Bed Fusion 316L by Addition of Nano TiC Particles

Pub Date: 2023-09-26 DOI: https://doi.org/10.1016/j.triboint.2023.108980

[Fei Lv, Yanyan Liu, Deqiao Xie]