IMR OpenIR
Superior Strength and Ductility of 304 Austenitic Stainless Steel with Gradient Dislocations
Pan, Qingsong1; Guo, Song1,2; Cui, Fang1; Jing, Lijun1; Lu, Lei1
Corresponding AuthorLu, Lei(llu@imr.ac.cn)
2021-10-01
Source PublicationNANOMATERIALS
Volume11Issue:10Pages:9
AbstractMaterials with designed gradient nanograins exhibit unprecedented mechanical properties, such as superior strength and ductility. In this study, a heterostructured 304 stainless steel with solely gradient dislocation structure (GDS) in micron-sized grains produced by cyclic-torsion processing was demonstrated to exhibit a substantially improved yield strength with slightly reduced uniform elongation, compared with its coarse grained counterparts. Microstructural observations reveal that multiple deformation mechanisms, associated with the formation of dense dislocation patterns, deformation twins and martensitic phase, are activated upon straining and contribute to the delocalized plastic deformation and the superior mechanical performance of the GDS 304 stainless steel.

Keywordgradient dislocations mechanical property low-angle boundary deformation twinning stainless steel
Funding OrganizationNational Science Foundation of China (NSFC) ; Key Research Program of Frontier Science and International partnership program ; Youth Innovation Promotion Association ; Chinese Academy of Sciences (CAS), LiaoNing Revitalization Talents Program ; SYNL Program
DOI10.3390/nano11102613
Indexed BySCI
Language英语
Funding ProjectNational Science Foundation of China (NSFC)[51931010] ; National Science Foundation of China (NSFC)[92163202] ; National Science Foundation of China (NSFC)[52122104] ; National Science Foundation of China (NSFC)[52071321] ; Key Research Program of Frontier Science and International partnership program[GJHZ2029] ; Youth Innovation Promotion Association[2019196] ; Chinese Academy of Sciences (CAS), LiaoNing Revitalization Talents Program[XLYC1802026] ; SYNL Program
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000717110700001
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/167240
Collection中国科学院金属研究所
Corresponding AuthorLu, Lei
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
Pan, Qingsong,Guo, Song,Cui, Fang,et al. Superior Strength and Ductility of 304 Austenitic Stainless Steel with Gradient Dislocations[J]. NANOMATERIALS,2021,11(10):9.
APA Pan, Qingsong,Guo, Song,Cui, Fang,Jing, Lijun,&Lu, Lei.(2021).Superior Strength and Ductility of 304 Austenitic Stainless Steel with Gradient Dislocations.NANOMATERIALS,11(10),9.
MLA Pan, Qingsong,et al."Superior Strength and Ductility of 304 Austenitic Stainless Steel with Gradient Dislocations".NANOMATERIALS 11.10(2021):9.
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