期刊
CORROSION SCIENCE
卷 53, 期 8, 页码 2575-2581出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2011.04.015
关键词
Steel; SEM; TEM; Hydrogen embrittlement
资金
- Czech Grant Agency [GA106/09/1587]
- Ministry of Education of the Czech Republic [MSM6198910015, CZ.1.05/2.1.00/01.0040]
The paper describes effect of hydrogen on the properties and fracture characteristics of two variants of TRIP 800 C-Mn-Si steels. The effect of hydrogen was studied by means of tensile tests on specimens previously charged by hydrogen. Hydrogen provoked embrittlement in both variants but only for very high hydrogen content. Hydrogen embrittlement manifested itself mainly by a loss of plasticity. Both steel variants were able to absorb a large amount of hydrogen, up to 50 ppm. Concerning fractographic characteristics, steels containing higher hydrogen content displayed transgranular cleavage fracture. In exceptional cases, an irreversible embrittlement was revealed initiating on non-metallic inclusions. (C) 2011 Elsevier Ltd. All rights reserved.
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