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铈对低铬铁素体不锈钢静态再结晶行为的影响
引用本文:李亚波,王福明,尚成嘉,李长荣.铈对低铬铁素体不锈钢静态再结晶行为的影响[J].材料热处理学报,2010,31(3).
作者姓名:李亚波  王福明  尚成嘉  李长荣
作者单位:1. 北京科技大学冶金与生态工程学院,北京,100083
2. 北京科技大学材料科学与工程学院,北京,100083
摘    要: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:铁素体不锈钢    静态再结晶  激活能  

Effect of cerium on static-recrystallization behavior in low chromium ferritic stainless steel
LI Ya-bo,WANG Fu-ming,SHANG heng-jia,LI Chang-rong.Effect of cerium on static-recrystallization behavior in low chromium ferritic stainless steel[J].Transactions of Materials and Heat Treatment,2010,31(3).
Authors:LI Ya-bo  WANG Fu-ming  SHANG heng-jia  LI Chang-rong
Affiliation:1. School of Metallurgical and Ecological Engineering/a>;University of Science and Technology Beijing/a>;Beijing 100083/a>;China/a>;2. School of Materials Science and Engineering/a>;China
Abstract:00Cr12 ferritic stainless steels with and without cerium were prepared and the effect of cerium on static-recrystallization behavior of the low chromium ferritic stainless steels was investigated. The stress-strain curves of the steels were tested at different temperatures with different interval time between passes on a Gleeble-3800 thermo-mechanical simulator by double-hit hot compression method, and the rates of recrystallization were calculated according to the tested stress-strain curves. Microstructur...
Keywords:ferritic stainless steel  cerium  static-recrystallization  activation energy  
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