A Feasible Thermomechanical Process of a Duplex-Phase Fe-Mn-Al-C Steel for Significantly Increasing Ductility Without Loss of Strength

doi:10.1007/s11661-024-07342-7

IMR OpenIR

	A Feasible Thermomechanical Process of a Duplex-Phase Fe-Mn-Al-C Steel for Significantly Increasing Ductility Without Loss of Strength
	Wang, Y.1,2; Chen, P.1,2; Chen, R.1,2,3; Li, X. W.1,2
通讯作者	Chen, P.(chenpeng@mail.neu.edu.cn) ; Li, X. W.(xwli@mail.neu.edu.cn)
	2024-03-01
发表期刊	METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
ISSN	1073-5623
页码	11
摘要	The controlled thermomechanical treatment was conducted for the mechanical property improvement of Fe-Mn-Al-C duplex low-density steels. The tensile ductility experienced a significant increase from 37 to 66 pct by decreasing the reduction of cold rolling from 30 to 20 pct during the thermomechanical process, and the ultimate tensile strength was also slightly improved. The enhanced strength and markedly improved ductility can be primarily attributed to a much higher work hardening ability resulting from a more efficient transformation-induced plasticity (TRIP) effect. The higher work hardening ability is mainly manifested by the occurrence of a remarkable recovery of work hardening rate, which can even cause an anomalous secondary work hardening occurring in the tensile deformation of the thermomechanically treated duplex steel. Decreasing cold rolling reduction in the thermomechanical process can introduce less dislocations, and then larger austenite grain size is obtained after recovery and recrystallization during annealing process, so that the austenite with an appropriate stability can ensure the TRIP effect to work continuously up to much higher strain levels. As a result, a strength-ductility combination of 58 GPa pct was achieved in this investigated duplex steel.
资助者	National Natural Science Foundation of China ; Fundamental Research Funds for the Central University
DOI	10.1007/s11661-024-07342-7
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52171108] ; National Natural Science Foundation of China[51804072] ; Fundamental Research Funds for the Central University[N2202007] ; Fundamental Research Funds for the Central University[N2202011]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001171576000001
出版者	SPRINGER
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/184423
专题	中国科学院金属研究所
通讯作者	Chen, P.; Li, X. W.
作者单位	1.Northeastern Univ, Sch Mat Sci & Engn, Dept Mat Phys & Chem, Shenyang 110819, Peoples R China 2.Northeastern Univ, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang, Y.,Chen, P.,Chen, R.,et al. A Feasible Thermomechanical Process of a Duplex-Phase Fe-Mn-Al-C Steel for Significantly Increasing Ductility Without Loss of Strength[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2024:11.
APA	Wang, Y.,Chen, P.,Chen, R.,&Li, X. W..(2024).A Feasible Thermomechanical Process of a Duplex-Phase Fe-Mn-Al-C Steel for Significantly Increasing Ductility Without Loss of Strength.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,11.
MLA	Wang, Y.,et al."A Feasible Thermomechanical Process of a Duplex-Phase Fe-Mn-Al-C Steel for Significantly Increasing Ductility Without Loss of Strength".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (2024):11.