形变热处理工艺(TMTP)对T91钢显微组织的影响Influence of thermomechanical treatment processing (TMTP) on microstructures of T91 steel
宁保群,刘永长,徐荣雷,杨留栓
摘要(Abstract)：
在Gleeble 1500热模拟实验机上采用热压缩实验方法,研究了形变热处理工艺即在奥氏体未再结晶区变形后直接淬火对T91铁素体耐热钢微观组织的影响。结果表明:形变热处理工艺明显优化了T91钢的组织结构,使T91钢的马氏体板条趋于细化,并且能生成更多纳米级碳氮化物颗粒来进一步进行组织强化,从而论述了采用形变热处理工艺来提高铁素体耐热钢耐热温度的可行性。
关键词(KeyWords)： 形变热处理工艺;T91铁素体耐热钢;奥氏体未再结晶区;碳氮化物颗粒
基金项目(Foundation): 国家自然科学基金(No．50401003);; 全国优秀博士论文作者专项基金(No．200335);; 天津市自然科学基金(No．033608811);; 河南省国际合作项目(No．0546620015)资助。
作者(Author): 宁保群,刘永长,徐荣雷,杨留栓
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