A novel ultrafine-grained Fe-22Mn-0.6C TWIP steel with superior strength and ductility

IMR OpenIR

	A novel ultrafine-grained Fe-22Mn-0.6C TWIP steel with superior strength and ductility
	Tian, Y. Z.; Bai, Y.; Zhao, L. J.; Gao, S.; Yang, H. K.; Shibata, A.; Zhang, Z. F.; Tsuji, N.; Tian, YZ (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
	2017-04-01
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	126 页码:74-80
摘要	A fully recrystallized ultrafine-grained (UFG) Fe-22wt.%Mn-0.6wt.%C twinning-induced plasticity (TWIP) steel with mean grain size of 576 nm was fabricated by cold rolling and annealing process. Tensile test showed that this UFG steel possessed high yield strength of 785 MPa, and unprecedented uniform elongation of 48%. The Hall-Petch relationship was verified from the coarse-grained (CG) regime to the ultrafine-grained (UFG) regime. The microstructures at specified tensile strains were characterized by electron backscattered diffraction (EBSD) and transmission electron microscopy (TEM). The microstructures and strain hardening behavior of the UFG TWIP steel were compared with the CG counterpart. The strong strain hardening capability of the UFG steel is supposed to be responsible for the high strength and good ductility. (C) 2017 Elsevier Inc All rights reserved.; A fully recrystallized ultrafine-grained (UFG) Fe-22wt.%Mn-0.6wt.%C twinning-induced plasticity (TWIP) steel with mean grain size of 576 nm was fabricated by cold rolling and annealing process. Tensile test showed that this UFG steel possessed high yield strength of 785 MPa, and unprecedented uniform elongation of 48%. The Hall-Petch relationship was verified from the coarse-grained (CG) regime to the ultrafine-grained (UFG) regime. The microstructures at specified tensile strains were characterized by electron backscattered diffraction (EBSD) and transmission electron microscopy (TEM). The microstructures and strain hardening behavior of the UFG TWIP steel were compared with the CG counterpart. The strong strain hardening capability of the UFG steel is supposed to be responsible for the high strength and good ductility. (C) 2017 Elsevier Inc All rights reserved.
部门归属	[tian, y. z. ; yang, h. k. ; zhang, z. f.] chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china ; [tian, y. z. ; bai, y. ; zhao, l. j. ; gao, s. ; shibata, a. ; tsuji, n.] kyoto univ, dept mat sci & engn, sakyo ku, kyoto 6068501, japan ; [tian, y. z. ; shibata, a. ; tsuji, n.] kyoto univ, esism, sakyo ku, kyoto 6068501, japan ; [zhao, l. j.] colorado sch mines, dept met & mat engn, adv steel proc & prod res ctr, golden, co 80401 usa
关键词	Twinning-induced Plasticity (Twip) Steel Ultrafine Grain (Ufg) Twin Strength Ductility
学科领域	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
资助者	Japan Society for Promotion of Science (JSPS); National Natural Science Foundation of China (NSFC) [51331007, 51501198]; Elements Strategy Initiative for Structural Materials (ESISM) through the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan; Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan [2201]
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/78202
专题	中国科学院金属研究所
通讯作者	Tian, YZ (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
推荐引用方式 GB/T 7714	Tian, Y. Z.,Bai, Y.,Zhao, L. J.,et al. A novel ultrafine-grained Fe-22Mn-0.6C TWIP steel with superior strength and ductility[J]. MATERIALS CHARACTERIZATION,2017,126:74-80.
APA	Tian, Y. Z..,Bai, Y..,Zhao, L. J..,Gao, S..,Yang, H. K..,...&Tian, YZ .(2017).A novel ultrafine-grained Fe-22Mn-0.6C TWIP steel with superior strength and ductility.MATERIALS CHARACTERIZATION,126,74-80.
MLA	Tian, Y. Z.,et al."A novel ultrafine-grained Fe-22Mn-0.6C TWIP steel with superior strength and ductility".MATERIALS CHARACTERIZATION 126(2017):74-80.