形变热处理工艺对马氏体和贝氏体金相组织的影响

1.东北大学,轧制技术及连轧自动化国家重点实验室,辽宁,沈阳,110004

2.东北大学,轧制技术及连轧自动化国家重点实验室,辽宁,沈阳,110004

3.东北大学,轧制技术及连轧自动化国家重点实验室,辽宁,沈阳,110004

EFFECT OF AUSFORMING PROCESS ON THE MORPHOLOGY OF MARTENSITE AND BAINITE

在热模拟试验机上模拟了形变热处理工艺,并对淬火后获得的马氏体和贝氏体组织进行了观察分析.结果表明:奥氏体未结晶区变形并淬火后,马氏体包的尺寸增大,而马氏体束的尺寸明显减小并发生弯曲.在贝氏体相变中,变形促进了铁素体的析出,且贝氏体晶粒细化的效果非常明显.

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