期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 615, 期 -, 页码 S98-S101出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2013.12.058
关键词
Metallic glasses; Mechanical properties; Nanoindentation; Plastic yielding; Shear band
资金
- Engineering and Physical Sciences Research Council, UK
- WPI-AIMR, Tohoku University
- EPSRC [EP/I035404/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/I035404/1] Funding Source: researchfish
Nanoindentation tests using a spherical indenter of tip radius 10 mu m have been performed on Zr- and Pd-based metallic glasses, focusing on the cumulative distribution of the first yield load. When normalized using the macroscopic yield stress, the distribution of mean pressure at yield is nearly independent of the glass composition. Collecting literature data, there is a clear indentation size effect in metallic glasses: the smaller the indenter tip radius, the larger the indentation pressure at yield. The magnitude of the size effect in metallic glasses is compared with, and found to lie between, the cases of crystalline metals and ceramics. (C) 2014 The Authors. Published by Elsevier B.V. All rights reserved.
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