拉伸速度对Si-Mn TRIP钢缺口敏感性的影响  

The effect of strain rate to notch sensivity of Si-Mn TRIP steel

作　　者：周华茂[1] 张绪平[1] 

机构地区：[1]中国矿业大学机电与材料学院,江苏徐州221008

出　　处：《煤矿机械》2003年第2期14-16,共3页Coal Mine Machinery

摘　　要：研究了等温处理Si-Mn低合金TRIP钢的拉伸性能和缺口敏感性与应变率 (ε =10 - 4～ 10 - 6s- 1)的变化关系。结果表明光滑试样下 ,Si -Mn低合金TRIP钢的屈服强度和抗拉强度随应变率的降低略有增加 ,缺口试样下 ,抗拉强度明显增大 ,缺口敏感性随应变率的降低明显增大。In this paper,effect of strain rate on the tensile property and notch sensitivity of Si-Mn TRIP steel after austenite tempering was invested.The results show that the yield and tensile strength of Si-Mn TRIP steel are increased slightly and total elongation is increased obviously with reducing strain rate.But the coefficient of notch sensitivity is depressed evidently with the strain rate decreased.

关 键 词：拉伸速度 TRIP钢 拉伸性能 缺口敏感性 应变率 

分 类 号：TG142[一般工业技术—材料科学与工程]