304奥氏体不锈钢热诱发马氏体相变研究Thermal-induced martensite transformation in 304 austenitic stainless steel
杨卓越,王建,陈嘉砚
摘要(Abstract)：
借助X射线衍射技术,研究了304奥氏体不锈钢热诱发马氏体相变倾向。结果表明:C、Mn、Cr和Ni接近标准规范下限,304不锈钢的稳定性急剧下降,致使液氮内冷却后接近1/3的奥氏体转变为α′或ε马氏体,室温拉伸即形成应变诱发ε和α′马氏体,而且较小的室温变形显著增大随后液氮内冷却的热诱发α′马氏体相变倾向,但随室温预应变增大快速形成应变诱发α′马氏体,致使随后在液氮内发生热诱发α′马氏体倾向下降。此外,研究表明ε马氏体的形成及消失与α′马氏体的累积量有关。
关键词(KeyWords)： 304不锈钢;热诱发;马氏体相变;预应变
基金项目(Foundation):
作者(Author): 杨卓越,王建,陈嘉砚
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