摘要
采用热模拟试验方法,对30Cr1Mo1V钢在700~1250℃温度区间内,以0.001~0.1 s^(-1)的应变速率进行热拉伸试验,系统获取了相应的应力-应变曲线。通过对试验数据的深入分析,重点探讨了变形温度和应变速率对材料峰值应力、峰值应变等关键参数的影响规律。同时,采用断面收缩率作为热塑性的评价指标,研究发现:在750~1250℃的变形温度范围内,材料均呈现韧性断裂特征。值得注意的是,当变形温度处于750~1050℃区间时,30Cr1Mo1V钢的热塑性表现出明显的温度依赖性和应变速率敏感性,即随着变形温度的升高和应变速率的降低,材料的热塑性显著提升。
In this study,the thermal tensile tests were conducted on 30Cr1Mo1V steel at a strain rate of 0.001~0.1 s^(-1) in the temperature interval of 700~1250℃by means of thermal simulation test methods,and the corresponding stress-strain curves were systematically obtained.Through the in-depth analysis of the experimental data,the influence laws of deformation temperature and strain rate on the key parameters such as peak stress and peak strain of the material are focused.At the same time,the section shrinkage is adopted as the evaluation index of thermoplasticity,and it is found that the materials are characterized by toughness fracture in the deformation temperature range of 750~1250℃.It is worth noting that when the deformation temperature is in the interval of 750~1050℃,the thermoplasticity of 30Cr1Mo1V steel shows obvious temperature dependence and strain rate sensitivity,i.e.,with the increase of deformation temperature and the decrease of strain rate,the thermoplasticity of the material is significantly enhanced.
作者
仇戊强
邱亮
时立佳
QIU Wuqiang;QIU Liang;SHI Lijia
出处
《大型铸锻件》
2025年第3期23-27,68,共6页
Heavy Casting and Forging
基金
天津重型装备工程研究有限公司科研项目(KY24KJ014/典型材质高中压转子锻造裂纹机理分析及防控技术研究)。
