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Microstructure Controlled Shear Band Pattern Formation and Enhanced Plasticity of Bulk Metallic Glasses Containing in situ Formed Ductile Phase Dendrite Dispersions

Hays, C. C. and Kim, C. P. and Johnson, W. L. (2000) Microstructure Controlled Shear Band Pattern Formation and Enhanced Plasticity of Bulk Metallic Glasses Containing in situ Formed Ductile Phase Dendrite Dispersions. Physical Review Letters, 84 (13). pp. 2901-2904. ISSN 0031-9007. https://resolver.caltech.edu/CaltechAUTHORS:HAYprl00

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Abstract

Results are presented for a ductile metal reinforced bulk metallic glass matrix composite based on glass forming compositions in the Zr-Ti-Cu-Ni-Be system. Primary dendrite growth and solute partitioning in the molten state yields a microstructure consisting of a ductile crystalline Ti-Zr-Nb β phase, with bcc structure, in a Zr-Ti-Nb-Cu-Ni-Be bulk metallic glass matrix. Under unconstrained mechanical loading organized shear band patterns develop throughout the sample. This results in a dramatic increase in the plastic strain to failure, impact resistance, and toughness of the metallic glass.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1103/PhysRevLett.84.2901DOIUNSPECIFIED
Additional Information:©2000 The American Physical Society Received 28 June 1999 The authors acknowledge the U.S. Department of Energy (Grant No. DEFG-03-86ER45242) for the support of C.C.H. We acknowledge the Army Research Office (Grant No. DAAG55-98-1-0305) for the support of C.P.K. We also thank Wayne Waller and Carolyn Patterson of the Caltech Digital Media Center for their assistance.
Issue or Number:13
Record Number:CaltechAUTHORS:HAYprl00
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:HAYprl00
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4515
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:25 Aug 2006
Last Modified:02 Oct 2019 23:13

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