张宇慧,刘昌昊,郭楠,徐富家,崔秀芳

• 1:中国航发哈尔滨东安发动机有限公司
• 2:哈尔滨工程大学材料科学与化学工程学院
• 3:哈尔滨焊接研究院有限公司

摘要(Abstract)：

采用激光熔覆技术在45钢基体表面制备了CoNiAl合金,采用扫描电镜、X射线衍射仪、磁学与力学性能测试及摩擦磨损试验等研究了固溶时效处理对CoNiAl合金的显微组织、磁学性能、摩擦性能和耐蚀性能的影响。结果表明:经不同温度固溶时效处理后,CoNiAl合金的组织均由β、γ、M三相组成,且随固溶温度升高,β相析出增多同时γ相析出减少,组织更加均匀。经固溶时效处理后CoNiAl合金的饱和磁感应强度有所下降,合金摩擦性能和耐蚀性能大幅提升,其中经1300℃×2 h固溶+500℃×2 h时效处理的合金摩擦性能和耐蚀性能最好。

关键词(KeyWords)： CoNiAl合金;激光增材;固溶时效;耐磨性能;耐蚀性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51975137)

作者(Author): 张宇慧,刘昌昊,郭楠,徐富家,崔秀芳

DOI: 10.13289/j.issn.1009-6264.2020-0397

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