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Synchronous optimization of strengths, ductility and corrosion resistances of bulk nanocrystalline 304 stainless steel
Wang, S. G.; Sun, M.; Liu, S. Y.; Liu, X.; Xu, Y. H.; Gong, C. B.; Long, K.; Zhang, Z. D.
Corresponding AuthorWang, S. G.(sgwang@imr.ac.cn)
2020-01-15
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume37Pages:161-172
AbstractStructural materials usually suffer from several attacks during their service, such as tension, fatigue and corrosion. It is necessary to synchronously improve these properties for their lightweight and long-lifetime, but corrosion resistance and ductility are generally inverse correlation with strength, it is very difficult to simultaneously optimize all three properties. However, bulk nanocrystalline 304 stainless steel (BN-304SS) produced by severe rolling technology possessed the larger yield and ultimate tensile strengths with sufficient elongation (> 40%) during tensile test, the larger saturation stress and longer lifetime during low-cycle fatigue, the enhanced uniform and pitting corrosion resistances during fiveday immersion test in 6 mol/L HCl, the lowered stress corrosion cracking (SCC) susceptibility with larger yield (similar to 2.40 GPa) and ultimate tensile (similar to 2.66 GPa) strengths, and enough elongation (> 30%) during stress corrosion in comparison with conventional polycrystalline 304 stainless steel (CP-304SS) counterpart. The uniform and pitting corrosion resistances of fractured BN-304SS were enhanced in comprsion with those of fractured CP-304SS during seven-day immersion test in 1 mol/L HCl. These results demonstrated the strengths, ductility and corrosion resistances of BN-304SS can be simultaneously optimized by severe rolling technology. These improved results of BN-304SS in different disciplines were understood by its valence electron configurations rather than traditional microstructural parameters. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
KeywordStainless steel Pitting corrosion Stress corrosion Tensile properties Low-cycle fatigue Severe rolling technology
Funding OrganizationNational Natural Sciences of Foundation of China ; Pujiang, Chengdu, Sichuan Province, China
DOI10.1016/j.jmst.2019.05.073
Indexed BySCI
Language英语
Funding ProjectNational Natural Sciences of Foundation of China[51171199] ; Pujiang, Chengdu, Sichuan Province, China[Y5N4811181]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000503163100020
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/136249
Collection中国科学院金属研究所
Corresponding AuthorWang, S. G.
AffiliationChinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Wang, S. G.,Sun, M.,Liu, S. Y.,et al. Synchronous optimization of strengths, ductility and corrosion resistances of bulk nanocrystalline 304 stainless steel[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,37:161-172.
APA Wang, S. G..,Sun, M..,Liu, S. Y..,Liu, X..,Xu, Y. H..,...&Zhang, Z. D..(2020).Synchronous optimization of strengths, ductility and corrosion resistances of bulk nanocrystalline 304 stainless steel.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,37,161-172.
MLA Wang, S. G.,et al."Synchronous optimization of strengths, ductility and corrosion resistances of bulk nanocrystalline 304 stainless steel".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 37(2020):161-172.
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