13Cr油井专用钢的高温塑性变形行为研究  

Study on high temperature plastic deformation behavior of 13Cr special steel for oil well

作　　者：韩顺[1] 张树利 王春旭[1] 傅万堂[2] 厉勇[1] 刘富强 HAN Shun;ZHANG Shu-li;WANG Chun-xu;FU Wan-tang;Ll Yong;LlU Fu-qiang(Institute of Special Steels,Central Iron and Steel Research Institute,Beijing 100081,China;School of Materials Science and Engineering,Yanshan University,Qinhuangdao 066004,China;Handan Xinxing Special Steel Pipes Co.,Ltd.,Handan 056046,China)

机构地区：[1]钢铁研究总院特殊钢研究所,北京100081 [2]燕山大学材料科学与工程学院,河北秦皇岛066004 [3]邯郸新兴特种管材有限公司,河北邯郸056046

出　　处：《塑性工程学报》2020年第10期111-117,共7页Journal of Plasticity Engineering

基　　金：国家重点研发计划项目(2016YFB0300104)。

摘　　要：采用Gleeble-3800热模拟试验机,对石油油井管用钢13Cr马氏体不锈钢进行了高温轴向压缩试验,热变形温度为1000~1250℃,应变速率为0.1~20 s^-1。通过试验获得了试验钢的高温流变曲线,其流变曲线符合典型的动态再结晶特征。根据流变曲线计算出该钢的热变形激活能为405262 J·mol^-1,并建立了试验钢的热变形本构方程及Z参数公式,同时绘制了试验钢的动态再结晶状态图与热加工图,理论上确定了最佳热变形工艺范围是变形温度1075~1125℃和1175~1250℃,应变速率为0.1 s^-1,此时能量耗散效率达到峰值。The high temperature axial compression test was carried out on a 13 Cr martensitic stainless steel for petroleum oil well pipe by using Gleeble-3800 thermal simulator.The thermal deformation temperature was 1000^-1250℃and the strain rate was 0.1-20 s^-1.The high temperature rheological curves of the test steel were obtained through test,and the rheological curves conform to the typical dynamic recrystallization characteristics.The thermal deformation activation energy of the steel was calculated to be 405262 J·mol^-1 according to the rheological curves.The thermal deformation constitutive equation and Z parameter formula of the test steel were established,and the dynamic recrystallization state diagram and the thermal processing map of the test steel were drawn.It is theoretically determined that the optimum thermal deformation process range is the deformation temperature of 1075^-1125℃and 1175^-1250℃,and the strain rate of 0.1 s^-1,at which time the energy dissipation efficiency reaches the peak.

关 键 词：13Cr油井专用钢 高温流变曲线 激活能 热变形方程 动态再结晶状态图 热加工图 

分 类 号：TG146.4[一般工业技术—材料科学与工程]