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Metals 2013, 3(1), 41-48; https://doi.org/10.3390/met3010041

Large Compressive Plasticity in a La-Based Glass-Crystal Composite

1
National Metallurgical Laboratory, Jamshedpur 831007, India
2
WPI-AIMR, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
3
Department of Materials Science & Metallurgy, University of Cambridge, Pembroke Street, Cambridge CB2 3QZ, UK
*
Author to whom correspondence should be addressed.
Received: 28 November 2012 / Revised: 16 December 2012 / Accepted: 18 December 2012 / Published: 27 December 2012
(This article belongs to the Special Issue Amorphous Alloys)
View Full-Text   |   Download PDF [1164 KB, uploaded 27 December 2012]   |  

Abstract

La55Al25Cu10Ni10 metallic glass has been reinforced with 325-mesh Ta particles to obtain ex situ glass-crystal composites. The composites show a high compressive plasticity (40%) with a minor reduction (~8%) in yield strength—a combination unprecedented for La-based systems and even surpassing some Zr-based glassy composites that utilize a tougher matrix. However, it is also found that the plastic strain is apparently sensitive to defects, like oxides, in the glassy matrix. View Full-Text
Keywords: plasticity; bulk metallic glasses; composites; toughness plasticity; bulk metallic glasses; composites; toughness
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Madge, S.V.; Louzguine-Luzgin, D.V.; Inoue, A.; Greer, A.L. Large Compressive Plasticity in a La-Based Glass-Crystal Composite. Metals 2013, 3, 41-48.

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