Improved tribological behavior of plasma-nitrided AlCrTiV and AlCrTiVSi high-entropy alloy films

被引：53
作者：
Cai, Zhaobing [1 ]
Wang, Zheng [1 ]
Hong, Yue [2 ]
Lu, Bingwen [2 ]
Liu, Jin [3 ]
Li, Yang [3 ]
Pu, Jibin [4 ]
机构：
[1] Wuhan Univ Sci & Technol, Minist Educ, Key Lab Met Equipment & Control Technol, Wuhan 430081, Hubei, Peoples R China
[2] Guangdong Acad Sci, Inst New Mat, Key Lab Guangdong Modern Surface Engn Technol, Natl Engn Lab Modern Mat Surface Engn Technol, Guangzhou 510651, Peoples R China
[3] Tianjin Univ Technol & Educ, Sch Mech Engn, Tianjin 300202, Peoples R China
[4] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Marine Mat & Related Technol, Ningbo 315201, Peoples R China
来源：
TRIBOLOGY INTERNATIONAL | 2021年 / 163卷
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
High-entropy alloy films; DC magnetron sputtering; Plasma nitriding; Tribological behavior; MICROSTRUCTURE; COATINGS; WEAR;
D O I：
10.1016/j.triboint.2021.107195
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Plasma nitriding was used to improve the tribological properties of AlCrTiV and AlCrTiVSi high-entropy alloy (HEA) films. The results indicated that after plasma nitriding, the microstructure and tribological property were improved greatly. For plasma-nitrided AlCrTiV, it is still composed of a single BCC solid solution but with a decreased lattice constant, while for plasma-nitrided AlCrTiVSi, a new V4.75Si3N0.58 nitride phase forms in the amorphous matrix, which all lead to the increase of nano-hardness, promoting the reduction of wear degree or wear rate against GCr15 and Al2O3. Due to the perfect balance of hardness and toughness, the plasma-nitrided AlCrTiV HEA film has the lowest friction coefficient (against Al2O3) and the best wear-resistance.
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页数：8
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