宋文英,王存宇,刘文忠,时捷,曹文全,董瀚

• 1:中国石油技术开发公司独联体分公司
• 2:钢铁研究总院特殊钢研究所
• 3:内蒙古第一机械集团有限公司工艺研究所

摘要(Abstract)：

用膨胀法和高温激光共聚焦显微镜分别对CrNi3Si2MoVNb钢经淬火和碳再配分(Q&P,Quenching and Partitioning)工艺的相变及马氏体相变的组织不均匀性进行表征,讨论了组织不均匀性对Q&P工艺钢微观组织的影响。结果表明,CrNi3Si2MoVNb钢第一次淬火过程中先形成马氏体在某些区域的批次增加,将原奥氏体晶粒分割成尺寸不同的若干区域,尺寸较大的未转变奥氏体稳定性较差,最终淬火过程中容易发生马氏体转变成二次淬火马氏体,而尺寸较小的更易于成为残留奥氏体。

关键词(KeyWords)： 马氏体;残留奥氏体;Q&P;相变;微观组织

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51101036,51201093);; 国家“973”项目(2010CB630803)

作者(Author): 宋文英,王存宇,刘文忠,时捷,曹文全,董瀚

DOI: 10.13289/j.issn.1009-6264.2014.08.014

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