摘要
采用THERMECMASTOR-Z热模拟试验机,对20CrMnTiH钢试样进行热模拟试验,研究材料的变形温度和应变速率对峰值应变的影响。采用Sellars模型结构建立20CrMnTiH钢的临界应变数学模型。根据热模拟试验结果,用MATLAB软件进行回归分析,得出模型的待定系数。误差分析结果表明,该临界应变模型的预测精度较高。
In order to investigate the influence of strain temperature,strain degree and strain rate on peak strain,hot simulation was conducted of 20CrMnTiH steel by means of THERMECMASTOR-Z,a hot simulation testing machine.Based on the test data and a series of deductions,the mathematical model of the critical strain of 20CrMnTiH steel is obtained,whose goodness of fit has been proven by computer regressive analysis.
出处
《武汉科技大学学报》
CAS
2009年第5期463-465,共3页
Journal of Wuhan University of Science and Technology
基金
武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室开放基金资助项目(FMRU2007Y01)
