唐斌,王义红,寇宏超,朱知寿,张丰收,李金山

• 1:西北工业大学凝固技术国家重点实验室
• 2:中煤科工集团重庆研究院
• 3:西部超导公司

摘要(Abstract)：

采用透射、X射线及显微硬度分析等方法,研究了TC21合金中淬火马氏体在长时间低温时效过程中的组织演变及马氏体分解机制。研究表明,淬火态TC21合金在400～450℃进行长时间等温处理后,易获得弥散分布的颗粒状α相,显著提高合金性能,而α相颗粒的形核与马氏体中层错的分布密切相关。正交马氏体在低温时效过程中的具体分解方式为α→α+α富→α+β亚稳→α+β。进一步提高时效温度或时效时间α相颗粒将粗化为片层状,降低合金强度。

关键词(KeyWords)： 钛合金;低温时效;微观组织;马氏体分解

Abstract:

Keywords:

基金项目(Foundation): 西北工业大学凝固技术国家重点实验室自主课题(37-TP-2009)

作者(Author): 唐斌,王义红,寇宏超,朱知寿,张丰收,李金山

DOI: 10.13289/j.issn.1009-6264.2012.01.009

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