Effect of strain hardening and volume fraction of crystalline phase on strength and ductility of bulk metallic glass composites

Continuum finite element analyses are performed to ascertain the role played by the volume fraction (Vf) and strain hardening behavior of crystalline reinforcements on the strength and ductility of bulk metallic glass matrix composites (BMGCs). Results show that a highly strain hardening elongated d...

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Bibliographic Details
Published in:Scripta materialia 2016-11, Vol.124, p.51-55
Main Authors: Shete, Mayuresh K., Singh, I., Narasimhan, R., Ramamurty, U.
Format: Article
Language:English
Subjects:
Amorphous materials
Composites
Crystal structure
Ductility
Finite element analysis
Guidelines
Metallic glass
Metallic glasses
Strain hardening
Strength
Volume fraction
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Summary:Continuum finite element analyses are performed to ascertain the role played by the volume fraction (Vf) and strain hardening behavior of crystalline reinforcements on the strength and ductility of bulk metallic glass matrix composites (BMGCs). Results show that a highly strain hardening elongated dendrite with Vf ~45% would make the BMGC ductile without any penalty on the strength. These results provide design guidelines for strong yet ductile BMGCs. [Display omitted]
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2016.06.020