Synchronous optimization of strengths, ductility and corrosion resistances of bulk nanocrystalline 304 stainless steel

doi:10.1016/j.jmst.2019.05.073

IMR OpenIR

	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.
通讯作者	Wang, S. G.(sgwang@imr.ac.cn)
	2020-01-15
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	37 页码:161-172
摘要	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.
关键词	Stainless steel Pitting corrosion Stress corrosion Tensile properties Low-cycle fatigue Severe rolling technology
资助者	National Natural Sciences of Foundation of China ; Pujiang, Chengdu, Sichuan Province, China
DOI	10.1016/j.jmst.2019.05.073
收录类别	SCI
语种	英语
资助项目	National Natural Sciences of Foundation of China[51171199] ; Pujiang, Chengdu, Sichuan Province, China[Y5N4811181]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000503163100020
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/136249
专题	中国科学院金属研究所
通讯作者	Wang, S. G.
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 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.