| 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 Author | Wang, S. G.(sgwang@imr.ac.cn) |
| 2020-01-15 | |
| Source Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| Volume | 37Pages:161-172 |
| Abstract | Structural 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. |
| Keyword | Stainless steel Pitting corrosion Stress corrosion Tensile properties Low-cycle fatigue Severe rolling technology |
| Funding Organization | National Natural Sciences of Foundation of China ; Pujiang, Chengdu, Sichuan Province, China |
| DOI | 10.1016/j.jmst.2019.05.073 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Sciences of Foundation of China[51171199] ; Pujiang, Chengdu, Sichuan Province, China[Y5N4811181] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000503163100020 |
| Publisher | JOURNAL MATER SCI TECHNOL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/136249 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wang, S. G. |
| Affiliation | Chinese 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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