X120管线钢形变奥氏体的静态再结晶行为

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摘要通过在Gleeble-3500热模拟试验机上进行的两道次热压缩变形试验，对含铌微合金管线钢的静态软化行为进行了研究。采用应力补偿法计算了不同变形温度下的静态再结晶百分数。变形温度和弛豫时间对X120钢的静态再结晶影响很大。根据试验数据和静态再结晶动力学方程,计算出X120管线钢静态再结晶激活能为401.56kJ·mol-1。绘制了试验钢的析出动力学（PTT）曲线。

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	高建忠

关键词 ： X120管线钢, 静态再结晶, 析出动力学曲线

Abstract：Static recrystallization behavior of microlloyed pipeline steel with Nb was investigated by two-pass uniaxial hot compression tests performed on Gleeble-3500 thermo-mechanical simulator. The static recrystallization fraction under different deformed temperatures was estimated by means of compensating. The results show that the effect of deformation temperature and inter-pass time on static recrystallization behavior is significant. The activation energy of static recrystallization of the X120 pipeline steel is 401.56 kJ/mol. The precipitation-time-temperature curve of the X120 pipeline steel is also obtained.

收稿日期: 2011-05-12 出版日期: 2012-09-05

引用本文:

高建忠，郭斌，，徐进桥，郭爱民，，王青峰. X120管线钢形变奥氏体的静态再结晶行为[J]. 钢铁, 2012, 47(8): 62-64. GAO Jian-zhong1,GUO Bin1,2,XU Jin-qiao2,GUO Ai-min1,2,WANG Qing-feng1. Static Recrystallization Behavior of Deformed Austenite in X120 Pipeline Steel. Iron and Steel, 2012, 47(8): 62-64.

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http://www.chinamet.cn/Jweb_gt/CN/ 或 http://www.chinamet.cn/Jweb_gt/CN/Y2012/V47/I8/62

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