高钢级管线钢变形抗力模型  

Research on mathematical model for the deformation resistance of high strength pipeline steel

作　　者：林鹏飞[1] 胡水平[1] 余伟[1] 宋晓波[1] 

机构地区：[1]北京科技大学冶金工程研究院,北京100083

出　　处：《塑性工程学报》2011年第6期47-52,共6页Journal of Plasticity Engineering

基　　金：国家"973"计划资助项目(2007ID102)

摘　　要：利用Gleeble-3500热模拟试验机,对两种不同成分的高钢级管线钢进行单道次压缩实验的塑性变形抗力进行研究。分析了变形温度、变形速率、变形程度对变形抗力的影响,建立一种适合X70、X80高钢级管线钢的变形抗力模型。通过多元非线性进行回归分析,证明模型具有良好的曲线拟合特性。模型成功的应用于轧制生产的现场,计算出的轧制力值误差控制在11%以内。The test study for plastic deformation resistance of two kinds of high strength pipeline steels with different components was engaged in single pass compression test by Gleeble-3500.The influence of deforming temperature、deforming velocity and deforming degree on deformation resistance were analyzed and a new model of deformation resistance suitable for X70 and X80 steels was established.Through multiple linear regression analysis,this model proved to have good curve fitting characteristics and relatively high precision.The model has been successfully used in rolling production with relative error of rolling force less than eleven percent.

关 键 词：热模拟 变形抗力 管线钢 Gleeble-3500 

分 类 号：TG301[金属学及工艺—金属压力加工]