低碳高铌X100管线钢的静态软化行为
发布时间：2019-06-20 02:17
【摘要】：通过热模拟试验机对低碳高铌X100管线钢进行双道次热压缩试验,研究了其静态软化行为,建立了该管线钢静态再结晶动力学模型。结果表明:该管线钢的静态软化行为受道次间隔时间和变形温度的影响较大;随着变形温度的升高和道次间隔时间的延长,试验钢的静态软化率增大;当变形温度低于950℃时,试验钢不会发生静态再结晶行为,而当变形温度高于1 000℃时,试验钢可以实现完全静态再结晶;通过建立的模型计算得到该钢的静态再结晶激活能为325kJ·mol-1,与采用化学成分经验公式法求得的结果相吻合。
[Abstract]:The double pass thermal compression test of low carbon and high niobium X100 pipeline steel was carried out by thermal simulation tester. The static softening behavior of the pipeline steel was studied and the dynamic model of static crystallization of the pipeline steel was established. The results show that the static softening behavior of the pipeline steel is greatly affected by the pass interval time and deformation temperature, and the static softening rate of the test steel increases with the increase of deformation temperature and pass interval time. When the deformation temperature is lower than 950 鈩，
本文编号：2502832
[Abstract]:The double pass thermal compression test of low carbon and high niobium X100 pipeline steel was carried out by thermal simulation tester. The static softening behavior of the pipeline steel was studied and the dynamic model of static crystallization of the pipeline steel was established. The results show that the static softening behavior of the pipeline steel is greatly affected by the pass interval time and deformation temperature, and the static softening rate of the test steel increases with the increase of deformation temperature and pass interval time. When the deformation temperature is lower than 950 鈩，
本文编号：2502832
本文链接：https://www.wllwen.com/kejilunwen/shiyounenyuanlunwen/2502832.html
