李亚波,王福明,尚成嘉,李长荣

• 1:北京科技大学冶金与生态工程学院
• 2:北京科技大学材料科学与工程学院

摘要(Abstract)：

为研究铈对低铬铁素体不锈钢的静态再结晶行为的影响,冶炼含铈和不含铈的00Cr12不锈钢,在Gleeble-3800型热模拟试验机上采用双道次压缩法,测量不同温度下、不同道次间隔时间试验钢的应力应变曲线,计算再结晶体积分数,评价材料静态再结晶行为;对试验钢在不同温度下退火,侵蚀后进行组织观察。结果表明:铈的添加可抑制试验钢静态再结晶的进行,提高试验钢的再结晶温度,细化晶粒,铈含量0.028wt%时可将00Cr12不锈钢的静态再结晶激活能由103kJ/mol提高到114kJ/mol。铈在晶界的偏聚,对晶界起到拖拽作用,降低了晶界迁移速度,从而抑制了静态再结晶行为。

关键词(KeyWords)： 铁素体不锈钢;铈;静态再结晶;激活能

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 李亚波,王福明,尚成嘉,李长荣

DOI: 10.13289/j.issn.1009-6264.2010.03.027

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