张建;杨军;朱浪涛;

• 1:西安建筑科技大学冶金工程学院

摘要(Abstract)：

采用超音速等离子喷涂技术在纯铜基体上制备Cr2O3-Ni-5%A(l质量分数)陶瓷涂层。利用XRD、SEM、激光共聚焦显微镜(LSCM)、显微硬度仪对涂层进行表征与分析,通过Image-pro Plus图形软件计算涂层的孔隙率,并通过摩擦磨损试验评价涂层的耐磨性能。结果表明:除了喷涂过程中出现了少量铬的氧化外,起始粉末和涂层的物相没有发生变化;陶瓷涂层表面呈双态组织,其表面粗糙度(Ra)为4.763μm;涂层断口形貌为典型的片层状组织,在涂层的抛光截面上可见紧密的富铬带均匀分布;Cr2O3涂层的孔隙率为1.2%,显微硬度为1 640HV0.3;涂层在室温下的摩擦因数约为0.4,其磨损机制为磨粒磨损。

关键词(KeyWords)： 高效能超音速等离子喷涂;显微组织;表面粗糙度;孔隙率

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51002114);; 陕西教育厅基金(2010JK654);; 西安建筑科技大学基金(No.RC0912)

作者(Author): 张建;杨军;朱浪涛;

Email:

DOI: 10.14024/j.cnki.1004-244x.2012.02.017

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