MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Geometry Constrained Plasticity of Bulk Metallic Glass
K. MondalK. Hono
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2009 Volume 50 Issue 1 Pages 152-157

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Abstract

Distinction between the geometry constrained plasticity and the unconstrained plasticity in compression stress-strain behaviors of bulk metallic glasses (BMG) has been attempted. Unusually large plasticity of BMG exceeding 20% is possible due to the geometry constrained effect in compression tests even if sample aspect ratios of 1.5–2 are used. Care must be taken because apparent large plasticity can arise if the unconstrained plastic deformation by the uniform formation of fine shear bands allows the deformed parts to touch the crosshead.

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© 2009 The Japan Institute of Metals and Materials
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