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The role of hydrogen in hardening/softening steel: Influence of the charging process

Title
The role of hydrogen in hardening/softening steel: Influence of the charging process
Author
장재일
Keywords
Steel; Hydrogen; Mechanical behavior; Nanoindentation; Thermal desorption spectroscopy
Issue Date
2015-10
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
SCRIPTA MATERIALIA, v. 107, Page. 46-49
Abstract
Thermal desorption spectroscopy and nanoindentation techniques were employed to elucidate the key differences in the hydrogen (H) charging methods (electrochemical versus gaseous) and their consequences on the mechanical response of a low carbon steel. While electrochemical charging enhances the hardness, gaseous charging reduces it. This contrasting behavior is rationalized in terms of the dependency of the strength on the absorbed amount of H during charging and the H concentration gradient in the specimen. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S1359646215002031?via%3Dihubhttp://hdl.handle.net/20.500.11754/28413
ISSN
1359-6462
DOI
10.1016/j.scriptamat.2015.05.017
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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