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Improvement of Mechanical Properties of a Medium-Mn TRIP Steel by Precursor Microstructure Control
Hu, Bao-Jia1,2; Zheng, Qin-Yuan1,2; Jia, Chun-Ni1,2; Liu, Peng1,2; Luan, Yi-Kun1; Zheng, Cheng-Wu1; Li, Dian-Zhong1
Corresponding AuthorZheng, Cheng-Wu(cwzheng@imr.ac.cn) ; Li, Dian-Zhong(dzli@imr.ac.cn)
2021-11-22
Source PublicationACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN1006-7191
Pages11
AbstractAn approach of optimizing the intercritical annealing path in a 0.2C-5Mn medium-Mn steel is presented by introducing precursor microstructure prior to normal austenite reverted transformation (ART) annealing. The steel is firstly pre-annealed at different intercritical temperatures to form designed precursor microstructures. Then, they are employed for subsequent conventional ART annealing processing. It is found that pre-annealing at relative high intercritical temperatures can promote precipitation and dissolution of the carbide in the steel and re-distribute the C and Mn in the microstructures. The produced microstructural precursors show excellent merits in accelerating the austenite reversions in subsequent normal ART processing and assisting the RA formation. Tensile testing reveals that the excellent strength-elongation balance can be achieved in the heat-treated samples using different microstructural precursors, which suggests the potential applicability in producing the medium-Mn steels with shortened processing period.
KeywordMedium-Mn steel Austenite reversion Retained austenite Precursor microstructure Mechanical properties
Funding OrganizationNational Natural Science Foundation of China
DOI10.1007/s40195-021-01355-6
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[52071322] ; National Natural Science Foundation of China[51771192] ; National Natural Science Foundation of China[U1708252]
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000721448300001
PublisherCHINESE ACAD SCIENCES, INST METAL RESEARCH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/167357
Collection中国科学院金属研究所
Corresponding AuthorZheng, Cheng-Wu; Li, Dian-Zhong
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Hu, Bao-Jia,Zheng, Qin-Yuan,Jia, Chun-Ni,et al. Improvement of Mechanical Properties of a Medium-Mn TRIP Steel by Precursor Microstructure Control[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2021:11.
APA Hu, Bao-Jia.,Zheng, Qin-Yuan.,Jia, Chun-Ni.,Liu, Peng.,Luan, Yi-Kun.,...&Li, Dian-Zhong.(2021).Improvement of Mechanical Properties of a Medium-Mn TRIP Steel by Precursor Microstructure Control.ACTA METALLURGICA SINICA-ENGLISH LETTERS,11.
MLA Hu, Bao-Jia,et al."Improvement of Mechanical Properties of a Medium-Mn TRIP Steel by Precursor Microstructure Control".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2021):11.
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