Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 40, Issue 39, Pages 13635-13642Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2015.07.163
Keywords
Hydrogen embrittlement; Stacking fault energy; Austenitic steel; Carbon; Nitrogen
Categories
Funding
- Convergence Agenda Program (CAP) of the Korea Research Council of Fundamental Science and Technology
- Korea Institute of Science and Technology [2E25322]
- Fundamental R&D Program for Core Technology of Materials - Ministry of Trade, Industry & Energy, Republic of Korea
- National Research Council of Science & Technology (NST), Republic of Korea [한국과학기술연구원] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The effect of hydrogen on the tensile behavior of two 18Cr10Mn austenitic steels having the similar stacking fault energy but different nitrogen and carbon contents was investigated. The steels were thermally charged with hydrogen at 15 MPa and 300 degrees C. The hydrogen content was determined using thermal desorption spectroscopy. The microstructure and fracture surface of the specimens were characterized using X-ray diffraction, optical and scanning electron microscopy. The ductility loss after hydrogen charging was greater in the steel with higher nitrogen content. The fracture behavior is discussed in terms of austenite phase stability and the localization of slip in the presence of nitrogen and hydrogen. Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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