摘要
在Thermecmastor-Z热模拟试验机上对0.045%Ti-0.003%C的Ti-IF钢进行700～950℃、应变0～0.7、应变速率1～70s^(-1)条件下的热模拟实验,以分析温度、应变速率和应变量对变形抗力的影响。用BP(back propagation)网络神经算法给出了Ti-IF钢在800～875℃变形抗力预报模型。通过对模型预报值和实验数据实测值的比较得出,变形抗力相对误差在4.0%以内。
Thermal simulation test for 0. 045Ti-0. 003 C Ti-IF steel with strain 0-0. 7 and strain rate 1 - 70 s-＇ at 700 - 950 ℃ has been carried out by Thermecmastor-Z simulation machine to analyze the effect of temperature, strain and strain rate on deformation resistance. The prediction model of deformation resistance of the Ti-IF steel at 800 - 875 ℃ was obtained by BP neural net calculation method. With comparison between model predicted value and actual measured value, it indicated that the relative error of deformation resistance was less than 4.0%.
出处
《特殊钢》
北大核心
2009年第1期16-18,共3页
Special Steel
基金
湖北省自然科学基金项目资助(2007ABA244)
