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Title: Mechanical Behavior of Bulk Amorphous Alloys Reinforced by Ductile Particles at Cryogenic Temperatures

Abstract

The mechanical behavior of Zr-based bulk amorphous alloy composites (BAACs) was investigated at 77 K. The 5 vol. % Ta-BAAC maintained large plastic strains of {approx}13% with a 16% strength increase, when compared with that at 298 K. The interaction between shear bands and particles shows that shear extension in particles has limited penetration, and shear bands build up around particles. In addition to on the failure surface of the amorphous matrix, molten characteristics were also found on the surface of sheared particles. Pair distribution function studies were performed to understand the mechanical behavior.

Authors:
; ; ; ; ;  [1];  [2]
  1. Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37923 (United States)
  2. U.S. Army Research Laboratory, Aberdeen Proving Ground, Maryland 21005 (United States)
Publication Date:
OSTI Identifier:
20777146
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 96; Journal Issue: 14; Other Information: DOI: 10.1103/PhysRevLett.96.145506; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COMPOSITE MATERIALS; CRYSTALLOGRAPHY; DISTRIBUTION FUNCTIONS; FAILURES; METALLIC GLASSES; PARTICLES; PLASTICITY; REINFORCED MATERIALS; SHEAR; STRAINS; SURFACE PROPERTIES; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0065-0273 K; TEMPERATURE RANGE 0273-0400 K; ZIRCONIUM BASE ALLOYS

Citation Formats

Fan Cang, Li Hongqi, Tao Kaixiang, Choo Hahn, Liaw, P.K., Liu, C.T., and Kecskes, Laszlo J. Mechanical Behavior of Bulk Amorphous Alloys Reinforced by Ductile Particles at Cryogenic Temperatures. United States: N. p., 2006. Web. doi:10.1103/PhysRevLett.96.145506.
Fan Cang, Li Hongqi, Tao Kaixiang, Choo Hahn, Liaw, P.K., Liu, C.T., & Kecskes, Laszlo J. Mechanical Behavior of Bulk Amorphous Alloys Reinforced by Ductile Particles at Cryogenic Temperatures. United States. doi:10.1103/PhysRevLett.96.145506.
Fan Cang, Li Hongqi, Tao Kaixiang, Choo Hahn, Liaw, P.K., Liu, C.T., and Kecskes, Laszlo J. Fri . "Mechanical Behavior of Bulk Amorphous Alloys Reinforced by Ductile Particles at Cryogenic Temperatures". United States. doi:10.1103/PhysRevLett.96.145506.
@article{osti_20777146,
title = {Mechanical Behavior of Bulk Amorphous Alloys Reinforced by Ductile Particles at Cryogenic Temperatures},
author = {Fan Cang and Li Hongqi and Tao Kaixiang and Choo Hahn and Liaw, P.K. and Liu, C.T. and Kecskes, Laszlo J.},
abstractNote = {The mechanical behavior of Zr-based bulk amorphous alloy composites (BAACs) was investigated at 77 K. The 5 vol. % Ta-BAAC maintained large plastic strains of {approx}13% with a 16% strength increase, when compared with that at 298 K. The interaction between shear bands and particles shows that shear extension in particles has limited penetration, and shear bands build up around particles. In addition to on the failure surface of the amorphous matrix, molten characteristics were also found on the surface of sheared particles. Pair distribution function studies were performed to understand the mechanical behavior.},
doi = {10.1103/PhysRevLett.96.145506},
journal = {Physical Review Letters},
number = 14,
volume = 96,
place = {United States},
year = {Fri Apr 14 00:00:00 EDT 2006},
month = {Fri Apr 14 00:00:00 EDT 2006}
}
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