Estimation of the Hall-Petch strengthening coefficient of steels through nanoindentation

Seok, Moo-Young and Choi, In-Chul and Moon, Joonoh and Kim, Sungju and Ramamurty, Upadrasta and Jang, Jae-il (2014) Estimation of the Hall-Petch strengthening coefficient of steels through nanoindentation. In: SCRIPTA MATERIALIA, 87 . pp. 49-52.

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Abstract

A method to estimate the Hall-Petch coefficient k for yield strength and flow stress of steels through nanoindentation experiments is proposed. While determination of k(f) for flow stress is on the basis of grain boundary strengthening evaluated by sharp indentation, k(y) for yield strength was computed with pop-in data from spherical indentations. Good agreement between estimated and literature data, obtained from the tensile tests, validates the proposed methodology. (C) 2014 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; Hall-Petch relation; Nanoindentation; Grain boundary strengthening
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	03 Sep 2014 07:24
Last Modified:	03 Sep 2014 07:24
URI:	http://eprints.iisc.ac.in/id/eprint/49712

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