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| 等离子弧熔覆高铬铸铁合金的组织与耐磨性 | |
| 引用本文： | 李殿凯,李明喜,洪海峰,高胡鹤,张德智,杨根莲. 等离子弧熔覆高铬铸铁合金的组织与耐磨性[J]. 金属热处理, 2011, 36(3) |
| 作者姓名： | 李殿凯 李明喜 洪海峰 高胡鹤 张德智 杨根莲 |
| 作者单位： | 1. 安徽工业大学,材料科学与工程学院,安徽省高校金属材料与加工重点实验室,安徽,马鞍山,243002 2. 安徽泰尔重工股份有限公司,安徽,马鞍山,243002 3. 安徽职业技术学院,安徽,马鞍山,243002 |
| 摘 要： | 采用等离子弧粉末熔覆技术在Q235钢表面制备了高铬铸铁型铁基涂层。通过X射线衍射仪、光学显微镜和扫描电镜观察和分析了涂层的相组成和组织形貌,并测试了显微硬度,与高铬铸铁的耐磨性进行了对比。结果表明,等离子弧制备的熔覆层组织为主要由正交结构的M7C3(M=Cr,Fe)型碳化物和面心立方结构的(Fe,Ni)固溶体构成过共晶组织,涂层的显微硬度在650~850HV0.2,与高铬铸铁相比,涂层的相对耐磨性更好。 |
| 关 键 词： | 等离子熔覆 铁基合金 过共晶组织 显微硬度 耐磨性 |
Microstructure and wear resistance of high chromium cast iron coating by plasma arc cladding |
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| LI Dian-kai,LI Ming-xi,HONG Hai-feng,GAO Hu-he,ZHANG De-zhi,YANG Gen-lian. Microstructure and wear resistance of high chromium cast iron coating by plasma arc cladding[J]. Heat Treatment of Metals, 2011, 36(3) | |
| Authors: | LI Dian-kai LI Ming-xi HONG Hai-feng GAO Hu-he ZHANG De-zhi YANG Gen-lian |
| Affiliation: | LI Dian-kai1,LI Ming-xi1,HONG Hai-feng1,GAO Hu-he2,ZHANG De-zhi2,YANG Gen-lian3(1.School of Materials Science and Engineering,Anhui University of Technology,Key Laboratory of Materials Science and Processing of Anhui Province,Ma'anshan Anhui 243002,China,2.Anhui Taier Heavy Industry Co.,Ltd.,Ma'anshan Anhui 24302,3.Department of Electrical Automation,Maanshan Technical College,China) |
| Abstract: | Fe-based coating with high carbon and chromium content was prepared by plasma arc.The microstructure of the coating was investigated by OM,SEM and XRD.The microhardness distribution of the coating was tested by the tester,and the wear resistance of the coating was compared with the high chromium cast iron.The results indicate that the hyperutectic structure of the coating consists of carbides(M7C3) with orthogonal structure and(Fe,Ni) solid solution with fcc structure and microhardness of the coating is abo... |
| Keywords: | plasma arc cladding Fe-based alloy hypereutectic structure microhardness wear resistance |
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