李华英,丁桦,蔡志辉,吴志强,邱春林,黄明丽

• 1:东北大学材料与冶金学院
• 2:轧制技术及连轧自动化国家重点实验室

摘要(Abstract)：

设计了一种低层错能TWIP(Twinning Induced Plasticity)Fe-25Mn-1Al-0.2C钢,对该钢分别在900、1000和1100℃进行了固溶处理实验,研究了实验钢的微观组织和力学性能。结果表明:实验钢晶粒尺寸随着固溶温度的升高和时间的延长而增大。在1100℃时,退火孪晶贯穿整个晶粒。实验钢的抗拉强度随着固溶温度的升高而降低。当固溶温度为900℃时,随着真应变的增加,应变硬化率缓慢地降低。当固溶温度为1100℃时,均匀塑性变形分为三个阶段,并且观察到孪晶交割。

关键词(KeyWords)： 高锰钢;TWIP;固溶处理;晶粒尺寸;形变孪晶

Abstract:

Keywords:

基金项目(Foundation): 中央高校基本科研业务费(N100602004);; 轧制技术及连轧自动化国家重点实验室开放课题(2009001);; 河北省自然科学基金(E2010001390)

作者(Author): 李华英,丁桦,蔡志辉,吴志强,邱春林,黄明丽

DOI: 10.13289/j.issn.1009-6264.2012.09.020

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