孟君晟,吉泽升

• 1:哈尔滨理工大学材料科学与工程学院
• 2:黑龙江科技学院材料科学与工程学院

摘要(Abstract)：

利用氩弧熔覆技术在TC4合金表面成功制备出TiC、TiB、TiB2增强Ti基复合涂层。利用SEM、XRD和EDS分析了熔覆涂层的显微组织;利用显微硬度仪测试了复合涂层的显微硬度;利用摩擦磨损试验机测试了涂层在室温干滑动磨损条件下的耐磨性能。结果表明:氩弧熔覆涂层组织均匀致密,熔覆层与基体呈冶金结合,TC4合金表面有颗粒状TiC、粗大棒状相TiB2、细小棒状相TiB生成;复合涂层明显改善了TC4合金的表面硬度,涂层的最高显微硬度可达1300 HV0.2;复合涂层在室温干滑动磨损试验条件下具有优异的耐磨性,磨损机制主要是魔力磨损,其耐磨性较TC4合金基体提高近10倍。

关键词(KeyWords)： TC4合金;氩弧熔覆;B4C;显微组织

Abstract:

Keywords:

基金项目(Foundation): 黑龙江省科技厅项目(12511469);; 黑龙江省科技攻关项目(GB03A202)

作者(Author): 孟君晟,吉泽升

DOI: 10.13289/j.issn.1009-6264.2013.03.027

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