弹簧钢55CrSi连铸坯变形抗力数学模型

特殊钢 ›› 2009, Vol. 30 ›› Issue (4): 27-29.

弹簧钢55CrSi连铸坯变形抗力数学模型

吕鹏, 刘雅政, 肖金福, 孙小军

北京科技大学材料科学与工程学院，北京100083

收稿日期:2009-01-19 出版日期:2009-08-01 发布日期:2022-12-20
通讯作者: 刘雅政，教授，北京科技大学材料科学与工程学院，北京100083
作者简介:吕鹏(1983-),男，硕士研究生，弹簧钢控轧控冷工艺研究。

Math Model for Deformation Resistance of Cast Bloom of Spring Steel 55CrSi

Lii Peng, Liu Yazheng, Xiao Jinfu , Sun Xiaojun

Materials Science and Engineering School, University of Science and Technology, Beijing 100083

Received:2009-01-19 Published:2009-08-01 Online:2022-12-20

摘要/Abstract

摘要： 用Gleeble-1500热模拟试验机研究了弹簧钢55CrSi(%:0.54C、1.37Si、0.70Cr)320mm×280mm连铸坯950～1150℃塑性变形抗力。分析了变形速率(1～10 s^-1)、变形程度(0.2～0.5)和变形温度对该钢变形抗力的影响,建立了55CrSi钢变形抗力数学模型。通过模型计算值和实测值对比和回归分析表明,回归方程高度显著,具有良好的曲线拟合特性。

Abstract: Deformation resistance of 320 mm x 280 mm cast bloom of spring steel 55CrSi (%: 0. 54C, 1. 37Si, 0. 70Cr) at 950 ~ 1 150 T was studied by Gleeble-1500 thermal simulator. Based on analyzing the effect of strain rate (1 - 10 s^-1), deformation extent (0. 2 ~0. 5) and temperature on deformation resistance of the steel, the math model for deformation resistance of steel 55CrSi has been established. The results of comparison between calculated value by model and measured value and regression analysis showed that the regression expression was high noticeable and had nice curve fitting characteristics.

吕鹏, 刘雅政, 肖金福, 孙小军. 弹簧钢55CrSi连铸坯变形抗力数学模型[J]. 特殊钢, 2009, 30(4): 27-29.

Lii Peng, Liu Yazheng, Xiao Jinfu , Sun Xiaojun. Math Model for Deformation Resistance of Cast Bloom of Spring Steel 55CrSi[J]. Special Steel, 2009, 30(4): 27-29.