Fe-30Mn-5Al TWIP钢的拉伸变形行为

被引：0
|
作者：
朱雪梅
梁泰贺
闫明威
机构：
[1] 大连交通大学材料科学与工程学院
来源：
大连交通大学学报 | 2023年 / 44卷 / 01期
关键词：
Fe-30Mn-5Al TWIP钢; 层错能; 拉伸变形行为; 形变孪晶;
D O I：
10.13291/j.cnki.djdxac.2023.01.017
中图分类号：
TG142.1 [钢的组织与性能];
学科分类号：
摘要：
在保证Fe-Mn-Al-Si系TWIP钢原有性能的基础上，为了消除Si对钢表面镀锌的不利影响，根据层错能计算方法以及钢的奥氏体稳定区与成分的经验解析方程，设计了Fe-30Mn-5Al单相奥氏体TWIP钢。采用万能实验机对其进行室温拉伸实验并对实验后的试样进行了背散射电子衍射分析（EBSD）,研究了Fe-30Mn-5Al钢的拉伸变形行为。结果表明：Fe-30Mn-5Al奥氏体TWIP钢的层错能为50.35 mJ/m2,固溶后的Fe-30Mn-5Al钢，在室温拉伸过程中，形成了大量形变孪晶，抗拉强度达到800 MPa,拉伸延伸率高达100%,兼具优异的强度和塑性。
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页码：103 / 106
页数：4
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