魏东博,张平则,姚正军,梁文萍,缪强,徐重

• 1:南京航空航天大学材料科学与技术学院

摘要(Abstract)：

研究了双层辉光等离子渗Cr对TC4合金650、750、850℃恒温氧化性能的影响。结果表明:渗Cr后,表面梯度合金层显著提高了TC4合金的高温氧化性能,Ti-Cr互扩散层可有效阻止氧向基体扩散。氧化过程中,Ti、Cr向外扩散形成TiO2/Cr2O3氧化膜,其形态与氧化温度有关。850℃氧化100 h后,渗Cr试样表面形成致密Cr2O3膜,恒温氧化性能优于NiCrAlY热障涂层。

关键词(KeyWords)： 钛合金;双辉等离子表面合金化;高温氧化

Abstract:

Keywords:

基金项目(Foundation): 航空科学基金资助项目(2007ZE52057);; 江苏省普通高校研究生科研创新计划资助项目(CXZZ11_0203)

作者(Author): 魏东博,张平则,姚正军,梁文萍,缪强,徐重

DOI: 10.13289/j.issn.1009-6264.2011.10.024

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