Microstructure and tribological properties of laser cladded FeCoCrNiCux high-entropy alloy coatings

被引：1

作者：

Yang C.-M. ^{[1
]}

Liu X.-B. ^{[1
]}

Liu Y.-F. ^{[1
]}

Zhu Z.-X. ^{[1
]}

Meng Y. ^{[1
]}

Zhang S.-H. ^{[2
]}

机构：

[1] Hunan province Key Laboratory of Materials Surface/Inerface Science and Technology, Central South University of Forestry and Technology, Changsha

[2] Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Material, Ministry of Education, Anhui University of Technology, Maanshan

来源：

Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2023年 / 33卷 / 05期

基金：

中国国家自然科学基金;

关键词：

high-entropy alloy coating; laser cladding; microstructure evolution; tribological properties;

D O I：

10.11817/j.ysxb.1004.0609.2022-43407

中图分类号：

学科分类号：

摘要：

FeCoCrNiCux(x=0, 0.5, 1) high-entropy alloy coatings were fabricated on SUS304 steel via laser cladding. The microstructure, tribological properties and wear behavior of the coatings with the Cu-doped high-entropy alloy coatings were analyzed. The results show that the prepared FeCoCrNiCux high-entropy alloys are all single FCC phase solid solutions with Cr, Ni(x=0) segregation and Cu segregation(x=0.5, 1). At room temperature, the friction coefficients of three kinds of coatings are slightly higher than that of the substrate. FeCoCrNiCu coating exhibits the enhanced work-hardening and ductility, which results in a significant decrease in wear rate. The tribological properties of the FeCoCrNiCu0.5 and FeCoCrNiCu coatings are significantly improved at 600 ℃. The FeCoCrNiCu0.5 coating forms a flat and dense oxide layer, the wear rate of the coating is only 1.29×10−4 mm3/(N·m). The FeCoCrNiCu coating forms a mechanical combination layer consisting of hard oxide and high toughness alloy, therefore, the friction coefficient of FeCoCrNiCu coating decrease to 0.24, exhibiting excellent friction reduction performance and wear-resistance. © 2023 Central South University of Technology. All rights reserved.

引用

页码：1514 / 1530

页数：16

共 28 条

[1] ARIF Z U., Laser deposition of high-entropy alloys: A comprehensive review, Optics and Laser Technology, 145, (2022)
[2] ZHANG Zhi-bin, ZHANG Shu-yan, CHEN Yong-xiong, Et al., Effects of alloy components and contents on high entropy alloy coatings by laser cladding: A review[J], China Surface Engineering, 34, 5, (2021)
[3] YEH J W, CHEN S K, LIN S J, Et al., Nanostructured high-entropy alloys with multiple principal elements: Novel alloy design concepts and outcomes[J], Advanced Engineering Materials, 6, 5, (2004)
[4] CANTOR B, CHANG I T H, KNIGHT P, Et al., Microstructural development in equiatomic multicomponent alloys[J], Materials Science and Engineering A, 375, pp. 213-218, (2004)
[5] LIU Yi-fan, CHANG Tao, LIU Xiu-bo, Et al., Research progress on tribological properties of high-entropy alloy coatings, Surface Technology, 50, 8, (2021)
[6] XU Yi-ku, LI Cong-ling, HUANG Zhao-hao, Et al., Microstructure and mechanical properties of CoCrCuFeNiTi0.8 high-entropy alloy prepared by directional solidification, The Chinese Journal of Nonferrous Metals, 31, 6, (2021)
[7] LI Yan-zhou, SHI Yan, Microhardness, wear resistance, and corrosion resistance of AlxCrFeCoNiCu high-entropy alloy coatings on aluminum by laser cladding, Optics & Laser Technology, 134, (2021)
[8] LIU Hao, GAO Qiang, DAI Jian-bo, Et al., Microstructure and high-temperature wear behavior of CoCrFeNiWx high-entropy alloy coatings fabricated by laser cladding, Tribology International, 172, (2022)
[9] JIANG Ye, CHEN Ke, WANG Wei, Preparation of AlCoNiFeCr high entropy alloy coating by mechanical alloying, The Chinese Journal of Nonferrous Metals, 28, 9, (2018)
[10] QI Yu-ming, HE Teng-wu, FENG Miao-lin, The effect of Cu and Mn elements on the mechanical properties of single-crystal CoCrFeNi-based high-entropy alloy under nanoindentation, Journal of Applied Physics, 129, 19, (2021)

← 1 2 3 →