奥氏体基<strong>Fe-Mn-Al-C</strong>轻质钢的研究进展

doi:10.11900/0412.1961.2023.00184

金属学报

2023, Vol. 59

Issue (8): 1027-1041 DOI: 10.11900/0412.1961.2023.00184

综述

本期目录 | 过刊浏览

奥氏体基Fe-Mn-Al-C轻质钢的研究进展

丁桦¹^,²^,³(

), 张宇³, 蔡明晖¹^,³, 唐正友¹^,³

¹东北大学材料科学与工程学院沈阳 110819
²东北大学轧制技术及连轧自动化国家重点实验室沈阳 110819
³东北大学辽宁省轻量化用关键金属结构材料重点实验室沈阳 110819

Research Progress and Prospects of Austenite-Based Fe-Mn-Al-C Lightweight Steels

DING Hua¹^,²^,³(

), ZHANG Yu³, CAI Minghui¹^,³, TANG Zhengyou¹^,³

¹School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China
²State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China
³Key Laboratory of Lightweight Structural Materials, Liaoning Province, Northeastern University, Shenyang 110819, China

引用本文:

丁桦, 张宇, 蔡明晖, 唐正友. 奥氏体基Fe-Mn-Al-C轻质钢的研究进展[J]. 金属学报, 2023, 59(8): 1027-1041.
Hua DING, Yu ZHANG, Minghui CAI, Zhengyou TANG. Research Progress and Prospects of Austenite-Based Fe-Mn-Al-C Lightweight Steels[J]. Acta Metall Sin, 2023, 59(8): 1027-1041.

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摘要:

材料的轻量化是一个永恒的课题。Fe-Mn-Al-C钢密度低，综合性能良好，日益得到材料研究领域和工业界的重视。在Fe-Mn-Al-C轻质钢中，通过对合金成分和工艺参数进行设计，可以获得不同的显微组织，得到力学性能范围很宽的高性能钢。新一代轻质高强Fe-Mn-Al-C钢的组织演变和变形机制有很多与其他钢铁材料不同的特点，涉及到许多新的物理冶金问题，需要对其进行深入研究。本文对近年来奥氏体基Fe-Mn-Al-C轻质钢中合金元素的作用、组织与性能之间的关系及变形机制等方面的研究进行综述，并对未来的研究方向做了展望，提出应进一步加强在新型Fe-Mn-Al-C轻质钢的合金设计、组织设计与调控、变形机制的定量分析及成形与使役性能等方面的研究，为高性能Fe-Mn-Al-C轻质钢的开发与应用奠定基础。

关键词 ： Fe-Mn-Al-C, 轻质钢, 奥氏体, 力学性能, 变形机制

Abstract：

Weight reduction of materials is an eternal topic. Recently, Fe-Mn-Al-C steels with low density and good comprehensive properties have attracted considerable interests in the fields of material research and industries. In Fe-Mn-Al-C steels, various microstructures can be produced and various mechanical properties can be achieved by rationally designing alloying compositions and process parameters. In the new-generation lightweight, high-strength Fe-Mn-Al-C steels, microstructural evolution and deformation mechanisms possess many characteristics that differ from those in other steels, and several novel aspects in physical metallurgy are involved and require to be thoroughly researched. In this paper, recent progress on the role of alloying elements, the relationship between microstructures and mechanical properties, and deformation mechanisms was reviewed and the future directions of research are proposed. To provide a solid foundation for the development and applications of the new type of Fe-Mn-Al-C lightweight steels, alloy design, microstructural design and control, quantitative analysis of deformation mechanisms, and forming and service properties should be focused.

Key words： Fe-Mn-Al-C lightweight steel austenite mechanical property deformation mechanism

收稿日期: 2023-05-04

ZTFLH:

TG142.25

基金资助:国家自然科学基金项目(U1760205);国家自然科学基金项目(51474062)

通讯作者: 丁桦，dingh@smm.neu.edu.cn，主要从事高性能材料的制备与组织性能控制的研究

Corresponding author: DING Hua, professor, Tel:13898876262, E-mail: dingh@smm.neu.edu.cn

作者简介: 丁桦，女，1958年生，教授，博士

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图1 奥氏体基Fe-Mn-Al-C轻质钢有序相的原子位置示意图[30]

图2 Fe-11Mn-10Al-1.25C钢不同温度退火后的XRD谱和显微组织[43]

表1 奥氏体和奥氏体基双相轻质钢的力学性能和相组成[3,7,12,16,23,30,42,87]

图3 Fe-Mn-Al-C-X轻质钢的抗拉强度和总伸长率比较图[14,19,40,59~63,69,71~73,80]

图4 多成分复相钢(CCS)的变形组织(应变为1.5%)[62]

图5 Fe-25.7Mn-10.6Al-1.2C钢的显微组织[12]

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