班丽丽,惠卫军,雍岐龙,翁宇庆,董瀚

• 1:昆明理工大学材料与冶金工程学院
• 2:先进钢铁材料技术国家工程研究中心

摘要(Abstract)：

研究了淬火回火(QT)和等温淬火(AT)两种热处理工艺对0.4C-1.5Si-1.5Mn系中碳TRIP钢棒材微观组织和力学性能的影响。结果表明,经等温淬火处理的试样,含有贝氏体铁素体、贝氏体、残余奥氏体及少量马氏体等多相组织,并且试样中含有较高的残余奥氏体量,这使得其常规力学性能明显优于淬火回火马氏体组织的试样。等温淬火工艺经400℃等温600s所获得的力学性能最佳,相变诱发塑性效果也最好,而且基体的组织较为均匀细化,残余奥氏体的含量较高,并有较多的下贝氏体存在,与上贝氏体交替出现对基体进行分割,从而可使实验用TRIP钢具有明显的TRIP效应。

关键词(KeyWords)： TRIP钢;热处理;力学性能;微观组织;等温淬火

Abstract:

Keywords:

基金项目(Foundation): 国家“973”重点基础研究发展规划项目(2004CB619104)

作者(Author): 班丽丽,惠卫军,雍岐龙,翁宇庆,董瀚

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