Strengthening and ductilization of laminate dual-phase steels with high martensite content

doi:10.1016/j.jmst.2020.03.083

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Strengthening and ductilization of laminate dual-phase steels with high martensite content
	Gao, Bo 4; Hu, Rong 3; Pan, Zhiyi 4; Chen XF(陈雪飞)1,2; Liu, Yi 4; Xiao, Lirong 4; Cao, Yang 4; Li, Yusheng 4; Lai, Qingquan 3; Zhou, Hao 4
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2021-02-01
卷号	65 页码:29-37
关键词	Dual phase steel Warm rolling Laminate structure Bauschinger effect HDI stress
ISSN号	1005-0302
DOI	10.1016/j.jmst.2020.03.083
通讯作者	Lai, Qingquan(lai@njust.edu.cn) ; Zhou, Hao(hzhou511@njust.edu.cn)
英文摘要	The steels with excellent strength and ductility are expected to be achieved by tailoring the microstructural features. In this work, laminate dual-phase (DP) steels with high martensite content (laminate HMDP steels) were produced by a combination of warm rolling and intercritical annealing. Influence of rolling strain and annealing temperature on the microstructural evolution and mechanical properties of laminate HMDP steels were systematically studied. The strength of HMDP steels was significantly improved to similar to 1.6 GPa associated with a high uniform elongation of 7%, as long as the laminate structure is maintained. The strengthening and ductilizing mechanisms of laminate HMDP steels are discussed based on the influence of laminate structure and the high martensite content, which promote the development of internal stresses and can be correlated to the Bauschinger effect as measured by the cyclic loading-unloading-reloading experiments. Detailed transmission electron microscopy (TEM) observation was applied to characterize the dislocation structure in the deformed ferrite. (C) 2021 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
分类号	一类
资助项目	National Key R&D Program of China[2017YFA0204403] ; National Natural Science Foundation of China[51931003] ; National Natural Science Foundation of China[51601094] ; National Natural Science Foundation of China[51601003] ; National Natural Science Foundation of China[51701097] ; National Natural Science Foundation of China[51901103] ; Fundamental Research Funds forthe Central Universities[30917011106] ; Fundamental Research Funds forthe Central Universities[30918011342] ; Natural Science Foundation of Jiangsu Province[BK20170843] ; Natural Science Foundation of Jiangsu Province[BK20180492]
WOS关键词	LOW-CARBON STEEL ; MECHANICAL-PROPERTIES ; AUSTENITE FORMATION ; INITIAL MICROSTRUCTURE ; DUCTILE FRACTURE ; BEHAVIOR ; FERRITE ; DEFORMATION ; REFINEMENT ; RECRYSTALLIZATION
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:000609935300004
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; Fundamental Research Funds forthe Central Universities ; Natural Science Foundation of Jiangsu Province
其他责任者	Lai, Qingquan ; Zhou, Hao
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/86022]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Nanjing Univ Sci & Technol, Herbert Gleiter Inst Nanosci, Nanjing 210094, Peoples R China; 4.Nanjing Univ Sci & Technol, Nano & Heterogeneous Mat Ctr, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China;
推荐引用方式 GB/T 7714	Gao, Bo,Hu, Rong,Pan, Zhiyi,et al. Strengthening and ductilization of laminate dual-phase steels with high martensite content[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,65:29-37.
APA	Gao, Bo.,Hu, Rong.,Pan, Zhiyi.,陈雪飞.,Liu, Yi.,...&Zhou, Hao.(2021).Strengthening and ductilization of laminate dual-phase steels with high martensite content.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,65,29-37.
MLA	Gao, Bo,et al."Strengthening and ductilization of laminate dual-phase steels with high martensite content".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 65(2021):29-37.