The directional array TiN-reinforced AlCoCrFeNiTi high-entropy alloy synthesized in situ via magnetic field-assisted laser cladding

被引：53
作者：
Liang, Gang [1 ,2 ]
Jin, Guo [1 ]
Cui, Xiufang [1 ]
Qiu, Zhaozhong [3 ]
Wang, Jianyong [2 ,4 ]
机构：
[1] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Key Lab Superlight Mat & Surface Technol, Minist Educ, Harbin 150001, Peoples R China
[2] Heilongjiang Univ Sci & Technol, Sch Mat Sci & Engn, Harbin 150022, Peoples R China
[3] Xuzhou Univ Technol, Sch Mat & Chem Engn, Xuzhou 221018, Jiangsu, Peoples R China
[4] Harbin Univ Sci & Technol, Sch Mat Sci & Chem Engn, Harbin 150080, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2022年 / 572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; Magnetic field; Laser cladding; Directional array; First principles calculation; MECHANICAL-PROPERTIES; COMPOSITE COATINGS; MICROSTRUCTURE; ENERGY;
D O I：
10.1016/j.apsusc.2021.151407
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Recent studies have shown that ceramic particles reinforced high entropy alloy (HEA) has attracted increased attention due to their excellent strength and wear resistance. In this work, the directional array TiN-reinforced AlCoCrFeNiTi HEA coating was synthesized via magnetic field-assisted laser cladding. Besides, the wear resistance of HEA coating was systematically investigated. The atomic structure, ideal adhesion work (Wad) and electronic structure of the interface between matrix and TiN were calculated by first principles method. The results show that the microstructures of in-situ TiN display a "cross" shape of the directional array, and a coherent interface in TiN (20 0)/(Ni, Co)Ti2 (511) and the high bonding strength between TiN and BCC improve the wear resistance of HEA coating.
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页数：10
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