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A high-strength heterogeneous structural dual-phase steel

文献类型：期刊论文

作者Gao B; Pan ZY; Li JS; Ma Y(马彦); Cao YY; Liu MP; Lai QQ; Xiao LR; Zhou H
刊名JOURNAL OF MATERIALS SCIENCE
出版日期2019-10-01
卷号54期号:19页码:12898-12910
ISSN号0022-2461
DOI10.1007/s10853-019-03785-1
通讯作者Lai, Qingquan(lai@njust.edu.cn) ; Xiao, Lirong(xiaolr620@126.com)
英文摘要The strengthening and ductilization of steels are of great importance to weight reduction of vehicles. In this work, the strength-ductility synergy of dual-phase (DP) steels was obtained by properly tailoring the structural heterogeneity, including the distribution and fraction of constituent phases. It was demonstrated that heterogeneous structural DP steels with high volume fraction of martensite (from 64 to 83%) led to a good combination of strength and ductility. Compared with the cold-rolled sheets, the tensile strength and uniform elongation of heterogeneous DP steel increased by 700MPa (from 1.06 to 1.76GPa) and 2.7% (from 1.3 to 4%), respectively. The contributions from back stress and effective stress were analyzed by cyclic loading-unloading experiments. The underlying deformation mechanism was discussed based on the results of mechanical test and microstructure observation.
分类号二类
WOS关键词MARTENSITE VOLUME FRACTION ; MECHANICAL-PROPERTIES ; AUSTENITE FORMATION ; INITIAL MICROSTRUCTURE ; HARDENING BEHAVIOR ; TENSILE PROPERTIES ; FRACTURE-BEHAVIOR ; PLASTIC BEHAVIOR ; STAINLESS-STEEL ; FERRITE
资助项目National Key R&D Program of China[2017YFA0204403] ; National Natural Science Foundation of China[51601094] ; National Natural Science Foundation of China[51601003] ; Fundamental Research Funds for the Central Universities[30918011342] ; Fundamental Research Funds for the Central Universities[30917011106] ; Materials Characterization and Research Center of Nanjing University of Science and Technology ; Jiangsu Key Laboratory of Advanced Micro & Nano Materials and Technology
WOS研究方向Materials Science
语种英语
WOS记录号WOS:000475764300051
资助机构National Key R&D Program of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Materials Characterization and Research Center of Nanjing University of Science and Technology ; Jiangsu Key Laboratory of Advanced Micro & Nano Materials and Technology
其他责任者Lai, Qingquan ; Xiao, Lirong
源URL[http://dspace.imech.ac.cn/handle/311007/79491]  
专题力学研究所_非线性力学国家重点实验室
推荐引用方式
GB/T 7714		 Gao B,Pan ZY,Li JS,et al. A high-strength heterogeneous structural dual-phase steel[J]. JOURNAL OF MATERIALS SCIENCE,2019,54(19):12898-12910.
APA Gao B.,Pan ZY.,Li JS.,马彦.,Cao YY.,...&Zhou H.(2019).A high-strength heterogeneous structural dual-phase steel.JOURNAL OF MATERIALS SCIENCE,54(19),12898-12910.
MLA Gao B,et al."A high-strength heterogeneous structural dual-phase steel".JOURNAL OF MATERIALS SCIENCE 54.19(2019):12898-12910.

入库方式： OAI收割

来源：力学研究所

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