Journal
SCRIPTA MATERIALIA
Volume 57, Issue 2, Pages 121-124Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2007.03.033
Keywords
metallic glasses; hardness; high temperature deformation; shear bands; pressure sensitivity
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The constraint factor, C, given by the hardness to the yield strength ratio and an indirect measure of the pressure sensitivity of plastic flow in amorphous alloys, of a Zr-based bulk metallic glass was measured as a function of temperature. Results show that, contrary to expectations, C increases linearly from similar to 3.2 to 3.5 within the 300-525 K range. Gradual transition in the shear band-dominated deformation mechanism was suggested as a possible reason for the observed increase in C. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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