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Title: Global melting of Zr57Ti5Ni8Cu20Al10 bulk metallic glass under microcompression

Abstract

Global melting was observed in micron-sized pillar samples tested under microcompression. In addition to a higher strength that was reproduced in samples with different sizes, a large plastic strain was also observed prior to the final fracture, as compared to bulk counterparts. The global melting was a result of the final fracture as evidenced by the acoustic emission at the end of the microcompression. However, the increased strain rate and large plastic strain might have contributed to the temperature increase prior to the fracture.

Authors:
 [1];  [2];  [1];  [2]
  1. ORNL
  2. University of Tennessee, Knoxville (UTK)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
934470
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 91
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; METALLIC GLASSES; ZIRCONIUM ALLOYS; TITANIUM ALLOYS; NICKEL ALLOYS; COPPER ALLOYS; ALUMINIUM ALLOYS; MELTING; COMPRESSION; MICROANALYSIS

Citation Formats

Cheng, Sheng, Choo, H., Wang, Xun-Li, and Liaw, Peter K. Global melting of Zr57Ti5Ni8Cu20Al10 bulk metallic glass under microcompression. United States: N. p., 2007. Web. doi:10.1063/1.2813623.
Cheng, Sheng, Choo, H., Wang, Xun-Li, & Liaw, Peter K. Global melting of Zr57Ti5Ni8Cu20Al10 bulk metallic glass under microcompression. United States. doi:10.1063/1.2813623.
Cheng, Sheng, Choo, H., Wang, Xun-Li, and Liaw, Peter K. Mon . "Global melting of Zr57Ti5Ni8Cu20Al10 bulk metallic glass under microcompression". United States. doi:10.1063/1.2813623.
@article{osti_934470,
title = {Global melting of Zr57Ti5Ni8Cu20Al10 bulk metallic glass under microcompression},
author = {Cheng, Sheng and Choo, H. and Wang, Xun-Li and Liaw, Peter K},
abstractNote = {Global melting was observed in micron-sized pillar samples tested under microcompression. In addition to a higher strength that was reproduced in samples with different sizes, a large plastic strain was also observed prior to the final fracture, as compared to bulk counterparts. The global melting was a result of the final fracture as evidenced by the acoustic emission at the end of the microcompression. However, the increased strain rate and large plastic strain might have contributed to the temperature increase prior to the fracture.},
doi = {10.1063/1.2813623},
journal = {Applied Physics Letters},
number = ,
volume = 91,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}