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

Zhao, Yakai and Seok, Moo-Young and Choi, In-Chul and Lee, Yun-Hee and Park, Seong-Jun and Ramamurty, Upadrasta and Suh, Jin-Yoo and Jang, Jae-il (2015) The role of hydrogen in hardening/softening steel: Influence of the charging process. In: SCRIPTA MATERIALIA, 107 . pp. 46-49.

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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.

Item Type:	Journal Article
Publication:	SCRIPTA MATERIALIA
Publisher:	PERGAMON-ELSEVIER SCIENCE LTD
Additional Information:	Copy right for this article belongs to the PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Keywords:	Steel; Hydrogen; Mechanical behavior; Nanoindentation; Thermal desorption spectroscopy
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	03 Sep 2015 04:47
Last Modified:	03 Sep 2015 04:47
URI:	http://eprints.iisc.ac.in/id/eprint/52269

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