张扬,张平则,李淑琴,魏东博,周鹏,魏祥飞

• 1:南京航空航天大学材料科学与技术学院

摘要(Abstract)：

研究了多弧离子镀铝对γ-TiAl合金850℃、950℃恒温氧化性能的影响,同时分析讨论了镀铝层的氧化机制。结果表明:多弧离子镀铝后,形成的纯铝涂层均匀致密,无裂纹、孔洞,与基体结合良好。静态空气中,850℃氧化100 h后,形成了连续致密的A12O3膜层及扩散层TiAl3相;950℃氧化100 h后,表面氧化膜由A12O3及少量的TiO2组成,膜层中TiAl2为主要成膜相。多弧离子镀铝有效地提高了γ-TiAl合金高温抗氧化性能。

关键词(KeyWords)： TiAl基合金;多弧离子镀;高温氧化;铝涂层

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51175247);; 江苏省研究生创新基金(CXZZZ11_0203)

作者(Author): 张扬,张平则,李淑琴,魏东博,周鹏,魏祥飞

DOI: 10.13289/j.issn.1009-6264.2013.s1.027

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