期刊
CORROSION SCIENCE
卷 77, 期 -, 页码 379-384出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2013.07.043
关键词
Steel; Modelling studies; Hydrogen absorption
资金
- POSCO Steel Innovation Programme
- World Class University Programme of the National Research Foundation of Korea, Ministry of Education, Science and Technology [R32-2008-000-10147-0]
Calculations indicate that the introduction of hydrogen into the body-centred cubic and face-centred cubic allotropes of iron in both cases reduces the {100} surface energy. The reduction is rather small in magnitude so this mechanism cannot present the major cause of the well-known hydrogen embrittlement phenomenon. Consistent with the theory of grain boundary embrittlement in iron, carbon is confirmed to increase the surface energy, thereby rendering cleavage fracture less likely assuming that other factors governing fracture are maintained constant. (C) 2013 Elsevier Ltd. All rights reserved.
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