IMECH-IR  > 非线性力学国家重点实验室
A high-strength heterogeneous structural dual-phase steel
Gao B; Pan ZY; Li JS; Ma Y(马彦); Cao YY; Liu MP; Lai QQ; Xiao LR; Zhou H
Corresponding AuthorLai, Qingquan(lai@njust.edu.cn) ; Xiao, Lirong(xiaolr620@126.com)
Source PublicationJOURNAL OF MATERIALS SCIENCE
2019-10-01
Volume54Issue:19Pages:12898-12910
ISSN0022-2461
AbstractThe 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.
DOI10.1007/s10853-019-03785-1
Indexed BySCI ; EI
Language英语
WOS IDWOS:000475764300051
WOS KeywordMARTENSITE VOLUME FRACTION ; MECHANICAL-PROPERTIES ; AUSTENITE FORMATION ; INITIAL MICROSTRUCTURE ; HARDENING BEHAVIOR ; TENSILE PROPERTIES ; FRACTURE-BEHAVIOR ; PLASTIC BEHAVIOR ; STAINLESS-STEEL ; FERRITE
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
Funding ProjectNational 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
Funding OrganizationNational 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
Classification二类
Ranking2
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/79492
Collection非线性力学国家重点实验室
Recommended Citation
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.
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