低温轧制对低密度 Fe-28Mn-8Al-1C 钢微观结构演变和力学性能的影响

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Yi Xiong, Ze-wei Luan, Xiao-qin Zha, Yong Li, Xiu-ju Du, Feng-zhang Ren, Shu-bo Wang, Xiao-jun Liu
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引用次数: 0

摘要

本研究系统研究了低温轧制(CR)变形对低密度 Fe-28Mn-8Al-1C 钢微观结构演变和力学性能的影响。研究结果表明,微观结构发生了一系列转变,从等轴奥氏体晶粒到带有应变带、孪晶、位错纠缠和位错胞的细长晶粒。随着变形的增加,纹理也从黄铜演变为铜。此外,机械性能与变形程度直接相关,极限抗拉强度、屈服强度和显微硬度分别从 882 兆帕增加到 1861 兆帕,505 兆帕增加到 1791 兆帕,284 HV 增加到 578 HV。然而,伸长率却从 64% 下降到 6.6%,这表明了强度-电导率之间的权衡。上述发现为利用 CR 操纵低密度钢的微观结构演变和机械性能提供了启示。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effects of Cryogenic Rolling on the Microstructure Evolution and Mechanical Properties of Low-Density Fe-28Mn-8Al-1C Steel

This study undertakes a systematic investigation into the influence of cryogenic rolling (CR) deformation on the microstructure evolution and mechanical properties of low-density Fe-28Mn-8Al-1C steel. The results reveal that the microstructure undergoes a series of transformations, from equiaxed austenite grains to elongated grains with strain bands, twinning, dislocation entanglements, and dislocation cells. The texture evolves from brass to copper with increasing deformation. Besides, the mechanical properties exhibit a direct correlation with the extent of deformation, as evidenced by the notable increase in ultimate tensile strength, yield strength, and microhardness from 882 to 1861, 505 to 1791 MPa, and 284 to 578 HV, respectively. However, elongation decreases from 64% to 6.6%, indicative of the strength-ductility trade-off. The aforementioned findings provide insight into the potential for manipulating the microstructure evolution and mechanical properties of low-density steels utilizing CR.

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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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