Q235钢变形抗力模型及试验分析  

Deformation resistance model and experimental analysis of Q235 steel

作　　者：韩庆 荆丰伟 徐文龙 王疆伟 王鹏 HAN Qing;JING Fengwei;XU Wenlong;WANG Jiangwei;WANG Peng(Beijing University of Science and Technology Design and Research Institute Co.,Ltd.,Beijing 100083,China;Carbon Steel Thin Slab Factory,Hongxing Iron&Steel Co.,Ltd.,Gansu Jiugang Group,Jiayuguan 735100,China)

机构地区：[1]北京科技大学设计研究院有限公司,北京100083 [2]甘肃酒钢(集团)宏兴钢铁股份有限公司碳钢薄板厂,甘肃嘉峪关735100

出　　处：《物理测试》2024年第1期8-13,共6页Physics Examination and Testing

基　　金：中央高校基本科研业务费专项资金资助项目(FRF-NP-18-006)。

摘　　要：利用Gleeble-2000热模拟试验机对Q235钢进行等温热压缩变形试验,为确保试验数据的准确性和试验的合理性,对试验进行了保温时间的选择和重复性检验,合理确定了保温时间和验证了仪器精度。研究了不同的变形条件(变形温度、变形程度和变形速率)对变形抗力的影响,合理选择了变形抗力模型并利用试验数据回归了模型参数,通过现场数据验证,建立的变形抗力数学模型具有较好的预报精度。Gleeble-2000 thermal simulation test machine was used to conduct the isothermal thermocompression deformation tests on Q235 steel.In order to ensure the accuracy of test data and the rationality of experiments,the selection of insulation time and repeatability tests were carried out.The insulation time was reasonably determined and the instrument accuracy was verified.The effects of different deformation conditions(deformation temperature,deformation degree,and deformation rate)on deformation resistance were investigated.The deformation resistance model was reasonably selected,and the model parameters were regressed using the experimental data.Through on-site data verification,the established mathematical model for deformation resistance exhibited good prediction accuracy.

关 键 词：Q235钢 热模拟试验 变形抗力 数学模型 

分 类 号：TG142.1[一般工业技术—材料科学与工程]