IMR OpenIR
A nanotwinned austenite stainless steel with high hydrogen embrittlement resistance
Fan, Y. H.; Cui, F.; Lu, L.; Zhang, B.
2019-06-05
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume788Pages:1066-1075
AbstractA nanotwinned 304 steel with a favorable combination of strength and ductility has been made in this work through the dynamic plastic deformation (DPD) treatment followed by a proper heat treatment. The DPD, DPD-annealed and coarse grain (CG) 304 samples were tensile tested with slow strain rate under electrochemical hydrogen charging condition. Compared with CG sample, DPD-annealed sample with a mixed structure of nanotwins (41% volume fraction), recrystallization grain (RXG, 32% volume fraction) and dislocation structures (27% volume fraction) possesses a high HE resistance. Hydrogen causes a 12.5% reduction in yield strength and 5.4% reduction in tensile strength of DPD-annealed sample because hydrogen enhances dislocations/twin boundaries (TBs) interactions and the subsequent dislocation mobility during the TB-mediated slip transfer. Hydrogen charging also causes a 41% reduction in strain induced martensite of DPD-annealed sample. Strain localization is supposed to be mitigated by the bundle form of TBs and the micro-sized RXGs, accounting for the high HE resistance of DPD-annealed alloy. Our findings suggest a new strategy to design high strength alloys with low HE susceptibility. (C) 2019 Elsevier B.V. All rights reserved.
KeywordAustenite Stainless steel Nanotwin Hydrogen embrittlement TEM
Indexed BySCI
Language英语
WOS IDWOS:000462767000125
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81017
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Fan, Y. H.,Cui, F.,Lu, L.,et al. A nanotwinned austenite stainless steel with high hydrogen embrittlement resistance[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,788:1066-1075.
APA Fan, Y. H.,Cui, F.,Lu, L.,&Zhang, B..(2019).A nanotwinned austenite stainless steel with high hydrogen embrittlement resistance.JOURNAL OF ALLOYS AND COMPOUNDS,788,1066-1075.
MLA Fan, Y. H.,et al."A nanotwinned austenite stainless steel with high hydrogen embrittlement resistance".JOURNAL OF ALLOYS AND COMPOUNDS 788(2019):1066-1075.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Fan, Y. H.]'s Articles
[Cui, F.]'s Articles
[Lu, L.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Fan, Y. H.]'s Articles
[Cui, F.]'s Articles
[Lu, L.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Fan, Y. H.]'s Articles
[Cui, F.]'s Articles
[Lu, L.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.