Knowledge Management System Of Institute of metal research，CAS
| Effect of grain refinement on the hydrogen embrittlement of 304 austenitic stainless steel | |
| Fan, Y. H.; Zhang, B.; Wang, J. Q.; Han, E-H; Ke, W. | |
| 2019-10-01 | |
| Source Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| Volume | 35Issue:10Pages:2213-2219 |
| Abstract | The effect of grain size (in the range from 4 mu m to 12 mu m) on the hydrogen embrittlement (HE) of 304 austenitic stainless steel (ASS) was studied. HE susceptibility result shows that HE resistance increases with grain refinement. Electron backscattered diffraction kernel average misorientation (EBSD-KAM) mapping shows that the strain localization can be mitigated by grain refinement. Hence, strain localization sites which act as highways for hydrogen diffusion and preferred crack initiation sites can be reduced along with grain refinement, leading to a high HE resistance. Meanwhile, grain size shows no influence on the strain induced martensite (SIM) transformation during the hydrogen charging slow strain tensile test (SSRT). Hence, the SIM formed during hydrogen charging SSRT is not responsible for the different HE resistance of 304 ASSs with various grain sizes. Hydrogen diffusion is supposed to be controlled by a competition between short-circuit diffusion along random grain boundary (RGB) and hydrogen trapping at dislocations, leading to a maximum hydrogen diffusion coefficient in the 304 ASS with an average grain size of 8 mu m. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| Keyword | Stainless steel Grain refinement Hydrogen embrittlement SEM EBSD |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000484531600012 |
| Publisher | JOURNAL MATER SCI TECHNOL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/80738 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | Fan, Y. H.,Zhang, B.,Wang, J. Q.,et al. Effect of grain refinement on the hydrogen embrittlement of 304 austenitic stainless steel[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2019,35(10):2213-2219. |
| APA | Fan, Y. H.,Zhang, B.,Wang, J. Q.,Han, E-H,&Ke, W..(2019).Effect of grain refinement on the hydrogen embrittlement of 304 austenitic stainless steel.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,35(10),2213-2219. |
| MLA | Fan, Y. H.,et al."Effect of grain refinement on the hydrogen embrittlement of 304 austenitic stainless steel".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 35.10(2019):2213-2219. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment