期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 46, 期 38, 页码 20107-20118出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2021.03.130
关键词
In-situ small punch test; Hydrogen embrittlement; Relative reduction of thickness; High Mn steel; SA372 steel; 9% Ni steel
资金
- 2019-2021 KAIA/MOLIT Project by the Korea Research Institute of Standards and Science, Republic of Korea [19TLRP-C152334-01]
- Development of Reliability Technology of Standard Measurement for Hydrogen Convergence Station - KRISS, Republic of Korea [KRISS-2020-GP2020-0011]
A study was conducted to examine the hydrogen embrittlement behaviors of three structural steels in high-pressure hydrogen environments using a newly established in-situ small punch test method. The effects of test temperature and punch velocity on the HE susceptibility of each steel were quantitatively evaluated.
Recently, as hydrogen has been increasingly applied in the field of new energy, it has become necessary to evaluate the mechanical characteristics of hydrogen embrittlement (HE) when materials are used to reduce costs as well as ensure safety in hydrogen facilities. However, to obtain a large amount of data in a short period of time and ensure reliability when selecting materials used in hydrogen energy applications, a simple test method for screening the HE susceptibility of materials under high-pressure hydrogen environments should be established and applied. In this study, the HE behaviors of three structural steels to be used in the hydrogen energy field were examined at room temperature and low temperatures under high-pressure hydrogen environments using the newly established in-situ small punch test method. The effects of test temperature and punch velocity on the HE susceptibility of each steel were quantitatively evaluated using the characterizing factor, known as the relative reduction of thickness. (c) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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