Wear and corrosion of CoCrFeNiMnTix high entropy alloy coatings by laser cladding

被引：6

作者：

Wang, D. C. ^{[1
]}

Wu, C. . L. ^{[1
,3
]}

Zhang, S. ^{[1
,3
]}

Zhang, C. H. ^{[1
]}

Zhang, D. X. ^{[2
]}

Sun, X. Y. ^{[2
]}

机构：

[1] Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang, Peoples R China

[2] Shenyang Dalu Laser Technol Co Ltd, Shenyang, Peoples R China

[3] Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Liaoning, Peoples R China

来源：

MATERIALS SCIENCE AND TECHNOLOGY | 2023年 / 39卷 / 17期

关键词：

Laser cladding; high entropy alloy; microstructure; microhardness; wear; corrosion; MECHANICAL-PROPERTIES; TENSILE PROPERTIES; BEHAVIOR; PROTECTION; RESISTANCE; PHASE;

D O I：

10.1080/02670836.2023.2227459

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

CoCrFeNiMnTix (x = 0.5, 1.0, 1.5, 2.0 in atomic ratio) high entropy alloy (HEA) coatings were prepared on 304 stainless steel by laser cladding. Experimental results showed that the CoCrFeNiMnTix HEAs constituent phase evolved from a single FCC phase for the HEA to FCC + BCC + Intermetallic + Laves phases with the addition of Ti element. The CoCrFeNiMnTix coatings exhibited an increasing microhardness from 412.42 HV to 573.97 HV. Accompanying the increase in microhardness, the wear resistance was proportional to the hardness of the coating, which met Archard's relationship. In addition, the corrosion resistance of the CoCrFeNiMnTix coatings displayed an increased tendency firstly and then decreased with the addition of Ti element. And, the HEA coating with x = 1.0 possessed the highest corrosion resistance as indicated by the lower corrosion current density, high charge transfer resistance and high pitting potential.

引用

页码：2811 / 2823

页数：13

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