万丽宁,董艳春,路项媛,杨勇,褚振华,关少康

• 1:河北工业大学材料学院
• 2:天津市层状复合及界面控制技术重点实验室

摘要(Abstract)：

采用大气等离子喷涂制备了NiCrBSi/WC-Ni复合涂层,并采用高频感应加热的方法对涂层进行了重熔处理。与NiCrBSi涂层进行对比,分析了涂层截面的显微组织及涂层与基体界面的结合状况,对重熔前后的两种涂层进行了划痕测试,并对大气等离子喷涂制备的两种涂层在不同载荷进行了耐磨性测试。结果表明,感应重熔使得涂层由机械结合变为冶金结合,增强了涂层的内聚力;感应重熔后,NiCrBSi/WC-Ni复合涂层的附着力大幅度提高,涂层的孔隙率和显微硬度降低。NiCrBSi/WC-Ni复合涂层的显微硬度和耐磨性远高于NiCrBSi合金涂层。WC-Ni的添加没有对涂层的摩擦系数产生明显的影响。

关键词(KeyWords)： NiCrBSi/WC-Ni复合涂层;感应重熔;冶金结合;耐磨性

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51372065);; 河北省自然科学基金(E2015202190)

作者(Author): 万丽宁,董艳春,路项媛,杨勇,褚振华,关少康

DOI: 10.13289/j.issn.1009-6264.2016.12.026

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