Journal
SCRIPTA MATERIALIA
Volume 61, Issue 10, Pages 951-954Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2009.07.037
Keywords
Bulk metallic glasses; Shear bands; Nanoindentation; Hardness
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Funding
- Korea Science and Engineering Foundation (KOSEF), MEST [R01-2008-000-20778-0]
- Korea Institute of Energy Technology Evaluation and Planning (KETEP), MKE [2008-P-EP-HM-E-04-0000]
- Department of Science and Technology, Government of India through a Swarna Jayanthi Fellowship
- Korea Evaluation Institute of Industrial Technology (KEIT) [2008-P-EP-HM-E-04-0000] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [R01-2008-000-20778-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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The nanoindentation hardness of individual shear bands in a Zr-based metallic glass was investigated in order to obtain a better understanding of how shear band plasticity is influenced by non-crystalline defects. The results clearly showed that the shear band hardness in both as-cast and structurally relaxed samples is much lower than the respective hardness of undeformed region. Interestingly, inter-band matrix also exhibited lower hardness than undeformed region. The results are discussed in terms of the influence of structural state and the prevailing mechanism of plastic deformation. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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