316LN热变形行为及动态再结晶晶粒的演变规律Hot Deformation and Dynamic Recrystallization Behaviors of 316LN
柏永青,陈明明,陈慧琴
摘要(Abstract)：
采用热压缩试验研究了316 LN不锈钢在温度1 250℃~900℃,应变速率0.005 s-1~0.5s-1,变形程度50%条件下的变形行为和组织演变;分析了变形参数对应力-应变曲线的影响规律,计算获得了该钢热变形应力指数和激活能;并通过动态再结晶晶粒演变规律的研究,建立了该钢热变形动态再结晶图,以及动态再结晶晶粒演变规律模型。研究结果可为316 LN不锈钢锻造过程晶粒细匀化的控制提供科学的依据。
关键词(KeyWords)： 316LN不锈钢;热变形;动态再结晶
基金项目(Foundation):
作者(Author): 柏永青,陈明明,陈慧琴
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