Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 44, Issue 57, Pages 30472-30477Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2019.09.171
Keywords
Austenitic steels; Metastable phases; Martensitic phase transformation; Hydrogen desorption; Hydrogen embrittlement
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Funding
- Japan Science and Technology Agency (JST) [20100113]
- Japan Society for the Promotion of Science KAKENHI [JP16H06365, JP17H04956]
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Hydrogen desorption behavior associated with gamma-alpha' and gamma-epsilon martensitic transformation during tensile tests is investigated in four kinds of alloys with different austenite stabilities. Remarkable deformation -induced hydrogen desorption is detected not only as a result of the gamma-epsilon martensitic transformation, but also because of the gamma-epsilon martensitic transformation, and the amount of desorbed hydrogen from transformed alpha' martensite is more than that of transformed e martensite. This suggests that the solubility of hydrogen in the e phase is higher than that in the alpha' martensite but lower than that in austenite. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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