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Further evidence for room temperature, indentation-induced nanocrystallization in a bulk metallic glass

Yoo, Byung-Gil and Choi, In-Chul and Kim, Yong-Jae and Suh, Jin-Yoo and Ramamurty, Upadrasta and Jang, Jae-il (2012) Further evidence for room temperature, indentation-induced nanocrystallization in a bulk metallic glass. In: MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 545 . pp. 225-228.

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Official URL: http://dx.doi.org/ 10.1016/j.msea.2012.03.026

Abstract

Room temperature nanoindentation experiments, employing two different pyramidal (Berkovich and cube-corner) indenters, were performed on a Zr-based bulk metallic glass (BMG) to critically examine the possibility of indentation-induced nanocrystallization in BMGs. Cross-sectional transmission electron microscopy images obtained from high angle annular dark field ( HAADF) and high resolution (HR) modes clearly indicate to the occurrence of nanocrystallization. Pronounced nanocrystallite formation in the case of sharper cube-corner indenter suggests that the structural transformation is favored by the high strains introduced during nanoindentation. (c) 2012 Elsevier B.V. All rights reserved.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to Elsevier B V
Keywords: AMORPHOUS-ALLOYS;INDENTER ANGLE;BEHAVIOR;NANOINDENTATION; CRYSTALLIZATION
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 20 Jul 2012 09:22
Last Modified: 20 Jul 2012 09:22
URI: http://eprints.iisc.ernet.in/id/eprint/44650

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