CSP微合金钢变形抗力动态回复模型

特殊钢 ›› 2009, Vol. 30 ›› Issue (1): 19-21.

CSP微合金钢变形抗力动态回复模型

万伦, 徐光, 陈振业, 刘莉, 吴开兵

武汉科技大学钢铁及资源利用省部共建教育部重点实验室，武汉430081

收稿日期:2008-07-30 出版日期:2009-02-01 发布日期:2022-11-29
作者简介:万伦( 1985-),男，硕士研究生,2006年武汉科技大学毕业，金属材料组织、性能和工艺研究，-

A Dynamic Recovery Model for Flow Stress of Microalloyed Steel Produced by Compact Strip Production Process

Wan Lun, Xu Guang, Chen Zhenye, Liu Li , Wu Kaibing

Key Lab for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and Technology, Wuhan 430081

Received:2008-07-30 Published:2009-02-01 Online:2022-11-29

摘要/Abstract

摘要： 从动态回复的角度对CSP生产的一种微合金钢(%:0.055C、1.49Mn、0.44Cr、0.03Nb、0.05V、0.03Ti)应力-应变进行了研究,根据动态回复的原理导出了实验钢种在热变形过程中的应力-应变曲线的稳态应力;同时,简化了应力对应变的函数关系,得出该钢最终的动态回复型变形抗力(流变应力)模型σ=142.166×(0.201+17.103ε-170.376ε²+946.630ε³-2 834.266ε⁴+4 234.420ε⁵-2 467.373ε⁶)MPa。实验验证结果表明,模型预报误差为5.77%,能够满足轧制压力理论计算和实际生产的需要。

Abstract: A study on stress-strain of a microalloyed steel (% ： 0. 055C, 1. 49Mn, 0. 44Cr, 0. 03Nb, 0. 05 V, 0. 03Ti) produced by Compact Strip Production (CSP) process has been carried out from the points of view of dynamic recovery and the steady stress of stress-strain curves of test steel in hot deformation process was deduced based on the principle of dynamic recovery, and with simplifying function relation between stress and strain the final flow stress (deformation resistance) model of dynamic recovery of the steel-σ =142. 166 x (0. 201 + 17. 103ε²- 170. 376ε + 946. 630ε³ 一 2 834. 266ε⁴; +4 234. 420ε⁵-2 467. 373ε⁶) MPa was obtained. Experimental verification results showed that the prediction relative error of model was 5. 77% to meet the requirements of theoretical calculation and actual production.

万伦, 徐光, 陈振业, 刘莉, 吴开兵. CSP微合金钢变形抗力动态回复模型[J]. 特殊钢, 2009, 30(1): 19-21.

Wan Lun, Xu Guang, Chen Zhenye, Liu Li , Wu Kaibing. A Dynamic Recovery Model for Flow Stress of Microalloyed Steel Produced by Compact Strip Production Process[J]. Special Steel, 2009, 30(1): 19-21.