| Hydrogen-assisted fracture features of a high strength ferrite-pearlite steel | |
| Jiang, Yuefeng1,2; Zhang, Bo1; Wang, Dongying3; Zhou, Yu1; Wang, Jianqiu1; Han, En-Hou1; Ke, Wei1 | |
| Corresponding Author | Zhang, Bo(bxz011@imr.ac.cn) |
| 2019-06-01 | |
| Source Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| Volume | 35Issue:6Pages:1081-1087 |
| Abstract | Up to now, the exact reason of hydrogen-induced fracture for ferrite-pearlite (FP) steel is still not fully understood. This study presents detail observations of the feature beneath the fracture surface with the aim to reveal the hydrogen-induced cracking initiation and propagation processes. Slow strain rate tensile (SSRT) testing shows that the FP steel is sensitive to hydrogen embrittlement (HE). Focused ion beam (FIB) was used to prepare samples for TEM observations after HE fracture. The corresponding fractographic morphologies of hydrogen charged specimen exhibit intergranular (IG) and quasi-cleavage (QC) fracture feature. Pearlite colony, ferrite/pearlite (F/P) boundary and the adjacent ferrite matrix are found to be responsible for the initial HE fracture and the subsequent propagation. With increasing of the stress intensity factor, fracture mode is found to change from mixed IG and QC to entire QC feature which only occurs at the ferrite matrix. No crack is observed at the ferrite/cementite (F/C) interface. This may be mainly due to the limited pearlite lamella size and relatively low interface energy. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| Keyword | Ferrite-pearlite steel TEM Fracture Hydrogen embrittlement |
| Funding Organization | Joint Funds of the National Natural Science Foundation of China |
| DOI | 10.1016/j.jmst.2018.12.019 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Joint Funds of the National Natural Science Foundation of China[U1608257] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000464017000016 |
| Publisher | JOURNAL MATER SCI TECHNOL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/132846 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhang, Bo |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 3.Shenyang Blower Works Grp Corp, Shenyang 110869, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Jiang, Yuefeng,Zhang, Bo,Wang, Dongying,et al. Hydrogen-assisted fracture features of a high strength ferrite-pearlite steel[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2019,35(6):1081-1087. |
| APA | Jiang, Yuefeng.,Zhang, Bo.,Wang, Dongying.,Zhou, Yu.,Wang, Jianqiu.,...&Ke, Wei.(2019).Hydrogen-assisted fracture features of a high strength ferrite-pearlite steel.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,35(6),1081-1087. |
| MLA | Jiang, Yuefeng,et al."Hydrogen-assisted fracture features of a high strength ferrite-pearlite steel".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 35.6(2019):1081-1087. |
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