原位VC_P/Fe复合材料制备及耐蚀抗磨特性  

Preparation of In-Situ VC_P /Fe Composites and Their Wear Resistance and Anticorrosion

作　　者：刘兆晶[1] 姚秀荣[1] 左锋[1] 任善之[1] 

机构地区：[1]哈尔滨理工大学材料科学与工程学院,黑龙江哈尔滨150040

出　　处：《铸造》2008年第10期1021-1024,共4页Foundry

基　　金：哈尔滨市科技攻关项目(2003AA5CG045);黑龙江省教育厅科技项目(11511058)

摘　　要：采用原位生成法熔炼制备VCP/Fe复合材料,对制备的VCP/Fe复合材料进行性能测试和组织观察、结构分析;采用对比试验,对原位VCP/Fe复合材料与Cr15Mo3抗磨白口铁、TiCP/Fe复合材料、Cr18Ni9不锈钢在相同的条件下,在自制的磨损装置上进行砂石冲蚀磨损和模拟海水条件下的砂浆冲蚀磨损。结果表明:熔炼制备的原位VCP/Fe复合材料的组织结构是在奥氏体基体上分布着球状VC增强颗粒和Cr7C3碳化物;在砂石冲蚀磨损条件下,原位VCP/Fe复合材料的抗磨性略低于Cr15Mo3抗磨白口铁,略高于TiCP/Fe复合材料和高于Cr18Ni9不锈钢;在模拟海水的砂浆冲蚀磨损条件下,原位VCP/Fe复合材料的耐蚀抗磨性能高于其他三种对比试验材料。在具有腐蚀介质同时又有磨损的情况下,VCP/Fe复合材料表现出耐蚀抗磨的优良性能。The VCp/Fe composites are prepared by in-situ method and their performance and microstructure were tested and analyzed, respectively. In sandstone and mortar of the simulated seawater, the erosive wear experiments on in-situ VCp/Fe composites, Cr15Mo3 white iron, TiCp/Fe composites and Cr18Ni9 stainless steel are performed by the self-developed wear device. The results of comparative experiments led to the following conclusions the microstructure of in-situ VCp/Fe composites is made up of spherical VC particles and Crγ33 carbides distributed on the austenite matrix. In sandstone experiments, the wear resistance of in-situ VCp/Fe composites is lower than that of Cr15Mo3, and is higher than that of TiCp/Fe composites and Cr18Ni9. In mortar experiments, the wear resistance and anticorrosion of VCp/Fe is higher than the other three materials. When the corrosion medium retains the same and the wear occurs, the wear resistance and anticorrosion of VCp/Fe is satisfied.

关 键 词：原位VCp/Fe复合材料 熔炼制备 冲蚀磨损 耐蚀抗磨性 

分 类 号：TB331[一般工业技术—材料科学与工程]