Microstructure and wear resistance of WC/Co-based coating on copper by plasma cladding

被引：55

作者：

Xie, Zixin ^{[1
,2
,3
]}

Zhang, Chao ^{[1
,2
,3
]}

Wang, Ruidong ^{[1
,2
,3
]}

Li, Dan ^{[1
,2
,3
]}

Zhang, Yuwen ^{[1
,2
,3
]}

Li, Guangshi ^{[1
,2
,3
]}

Lu, Xionggang ^{[1
,2
,3
]}

机构：

[1] Shanghai Univ, State Key Lab Adv Special Steel, Shanghai 200444, Peoples R China

[2] Shanghai Univ, Shanghai Key Lab Adv Ferromet, Shanghai 200444, Peoples R China

[3] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China

来源：

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2021年 / 15卷

基金：

中国国家自然科学基金;

关键词：

Co-based alloy; WC strengthening phase; Oxidation; Wear resistance; MECHANICAL-PROPERTIES; COMPOSITE COATINGS; WC-CO; LASER; ALLOY; BEHAVIOR; POWDER; LAYER; STEEL;

D O I：

10.1016/j.jmrt.2021.08.114

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The evolution of microstructure and wear resistance of Co-based alloy coating reinforced with WC phase prepared on copper substrate by plasma cladding were investigated. As the WC contents increased, several carbide phases appeared in the coating, the shape of these carbide phases grew from punctate and flower to block and dendrite. The proportion of these carbide phases such as M3W3C and M6W6C in the coating increased, which caused the average hardness to improve from 553.43 HV0.1 to 954.64 HV0.1. Compared with pure cobalt-based alloy coating, WC/cobalt-based coating had a higher oxidation degree and forms CoWO4 phase. The Co-based coating with 40% WC exhibited relatively good wear resistance at room temperature, 400 degrees C and 500 degrees C. At 600 degrees C, the sample with 10% WC possessed the lowest wear weight loss. (c) 2021 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

引用

页码：821 / 833

页数：13

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