Tensile and fracture behaviors of austenitic high-manganese steels subject to different hydrogen embrittlement test methods
- Authors
- Lee, Sang-In; Lee, Ji-Min; Lee, Seung-Yong; Kim, Han-Jin; Suh, Jin-Yoo; Shim, Jae-Hyeok; Baek, Un-Bong; Nahm, Seung-Hoon; Lee, Joonho; Hwang, Byoungchul
- Issue Date
- 2019-10-24
- Publisher
- ELSEVIER SCIENCE SA
- Citation
- MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v.766
- Abstract
- The hydrogen-embrittlement susceptibility of austenitic high-manganese steels according to different hydrogen-charging test methods was discussed in terms of hydrogen-embrittlement process and fracture mechanism. Exsitu electrochemical and high-pressure thermal hydrogen-charging methods exhibited a difference in hydrogen-embrittlement susceptibility because they affect the permeability and diffusivity of hydrogen. Moreover, the insitu high-pressure gaseous hydrogen-charging method showed the most apparent hydrogen-embrittlement susceptibility because higher triaxial stress in the necked region caused by plastic instability accelerates hydrogen charging in the specimen during tensile testing in hydrogen environment, thus leading to intergranular fracture in all regions.
- Keywords
- STACKING-FAULT ENERGY; STAINLESS-STEELS; ENVIRONMENT EMBRITTLEMENT; STRAIN LOCALIZATION; PLASTICITY; MICROSTRUCTURE; SUSCEPTIBILITY; DEFORMATION; MECHANISM; RESISTANCE; STACKING-FAULT ENERGY; STAINLESS-STEELS; ENVIRONMENT EMBRITTLEMENT; STRAIN LOCALIZATION; PLASTICITY; MICROSTRUCTURE; SUSCEPTIBILITY; DEFORMATION; MECHANISM; RESISTANCE; Hydrogen embrittlement; Austenitic; High-manganese steel; Hydrogen charging; Fracture
- ISSN
- 0921-5093
- URI
- https://pubs.kist.re.kr/handle/201004/119431
- DOI
- 10.1016/j.msea.2019.138367
- Appears in Collections:
- KIST Article > 2019
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.