赵冬伟,曹建春,周晓龙,米永峰,雍岐龙,邓蕾

• 1:昆明理工大学材料科学与工程学院
• 2:钢铁研究总院结构材料研究所

摘要(Abstract)：

采用应力松弛法研究了变形量对含Nb-Mo钢中碳氮化物析出开始时间Ps的影响。结果表明:变形量越大,Ps越小;变形量为10%和15%时,最快析出温度均在875℃左右;Ps分别为6.6 s和6.2 s。预应变较小时Ps对温度变化比较敏感。通过扫描电镜(SEM)、能谱仪(EDS)和透射电镜(TEM)对不同温度下的析出相进行了分析。结果表明:变形奥氏体中的碳氮化物主要沿晶界和位错析出,温度较低时有少量在晶内析出。

关键词(KeyWords)： 含Nb-Mo钢;变形量;微合金碳氮化物;奥氏体

Abstract:

Keywords:

基金项目(Foundation): 云南省应用基础研究计划项目(2006E0017Q)

作者(Author): 赵冬伟,曹建春,周晓龙,米永峰,雍岐龙,邓蕾

DOI: 10.13289/j.issn.1009-6264.2012.05.023

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