Tensile and fracture behaviors of austenitic high-manganese steels subject to different hydrogen embrittlement test methods

Title
Tensile and fracture behaviors of austenitic high-manganese steels subject to different hydrogen embrittlement test methods
Authors
서진유심재혁김한진이상인이지민이승용백운봉남승훈이준호황병철
Issue Date
2019-10
Publisher
Materials science & engineering. A, Structural materials : properties, microstructure and processing
Citation
VOL 766, 138367
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. Ex-situ 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 in-situ 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.
URI
http://pubs.kist.re.kr/handle/201004/70128
ISSN
0921-5093
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

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

BROWSE