Warm Deformation at the (α plus γ) Dual-Phase Region to Fabricate 2 GPa Ultrafine-Grained TRIP Steels

doi:10.3390/met13121997

IMR OpenIR

	Warm Deformation at the (α plus γ) Dual-Phase Region to Fabricate 2 GPa Ultrafine-Grained TRIP Steels
	Zhao, Jinxuan 1; Wang, Hai 2; Koenigsmann, Konrad 3; Ran, Xianzhe 4; Zhang, Peng 2; Zhang, Shuyuan 2; Li, Yi 2,5; Liu, Huan 2,5; Liu, Hui 5; Ren, Ling 2,6; Yao, Hui 1; Yang, Ke 2
通讯作者	Ren, Ling(lren@imr.ac.cn) ; Yao, Hui(yaohui@syuct.edu.cn)
	2023-12-01
发表期刊	METALS
卷号	13 期号:12 页码:12
摘要	Transformation-Induced Plasticity (TRIP) steels have a range of applications in the vehicle engineering field. Developing TRIP steels with improved mechanical properties would not only allow for lightweight designs, but would also improve the safety of the materials in service. In this study, we report novel 0.4C-(3, 5, 7)Mn-1.2Mo-0.8V TRIP steels; these steels were melted and then warm-deformed at the (alpha + gamma) dual-phase region to fabricate ultrafine-grained microstructures with average grain sizes of 200-500 nm. Results show that the tensile strengths of the steels range between 1.9 and 2.1 GPa, and their elongations range between 7% and 8.5%. The microstructural thermostability of the steels gradually decreases with an increase in the manganese content. Compared with conventional TRIP steels fabricated using the cold-rolling and annealing method, the warm-deformed TRIP steels presented here can prevent cracks forming during the fabrication process. More importantly, these steels have significantly lower dislocation densities, thus improving their ductility. The present research results provide new ideas for the design of future ultrahigh-strength TRIP steels.
关键词	TRIP steel ultrafine-grained warm deformation 2 GPa medium manganese steel
资助者	National Key Research and Development Program of China
DOI	10.3390/met13121997
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001131089000001
出版者	MDPI
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/183059
专题	中国科学院金属研究所
通讯作者	Ren, Ling; Yao, Hui
作者单位	1.Shenyang Univ Chem Technol, Coll Sci, 11 St Shenyang Econ & Technol Dev Area, Shenyang 110142, Peoples R China 2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 3.Univ Chicago, Fac Phys, Chicago, IL 60637 USA 4.Beihang Univ, Res Inst Frontier Sci, 37 Xueyuan Rd, Beijing 100191, Peoples R China 5.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 6.Binzhou Inst Technol, Shandong Key Lab Adv Aluminium Mat & Technol, Weiqiao UCAS Sci & Technol Pk, Binzhou 256606, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Jinxuan,Wang, Hai,Koenigsmann, Konrad,et al. Warm Deformation at the (α plus γ) Dual-Phase Region to Fabricate 2 GPa Ultrafine-Grained TRIP Steels[J]. METALS,2023,13(12):12.
APA	Zhao, Jinxuan.,Wang, Hai.,Koenigsmann, Konrad.,Ran, Xianzhe.,Zhang, Peng.,...&Yang, Ke.(2023).Warm Deformation at the (α plus γ) Dual-Phase Region to Fabricate 2 GPa Ultrafine-Grained TRIP Steels.METALS,13(12),12.
MLA	Zhao, Jinxuan,et al."Warm Deformation at the (α plus γ) Dual-Phase Region to Fabricate 2 GPa Ultrafine-Grained TRIP Steels".METALS 13.12(2023):12.