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Effects of temperature and composition on dynamic deformation behavior of Zr-based amorphous alloys SCIE SCOPUS

Title
Effects of temperature and composition on dynamic deformation behavior of Zr-based amorphous alloys
Authors
Lee, DGKim, YGHwang, BLee, YLee, S
Date Issued
2008-04-30
Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
Abstract
Effects of test temperature and alloy composition on dynamic deformation behavior of Zr-based amorphous alloys were investigated in this study. Dynamic compressive tests were conducted in the temperature range from room temperature to 380 degrees C using a compressive Kolsky bar. Dynamic compressive test results indicated that both maximum compressive stress and total strain of the amorphous alloys decreased with increasing test temperature because shear bands could propagate rapidly as the adiabatic heating effect was added at high temperatures. Maximum compressive stress and total strain of the alloy containing ductile beta crystalline phases were higher than those of the monolithic amorphous alloys over the tested temperature range because beta phases played a role in forming multiple shear bands. The alloys having lower T-g or ductile phases had more excellent dynamic properties than the LM1 alloy.
Keywords
amorphous alloy; dynamic compression Kolsky bar; glass transition temperature; BULK METALLIC-GLASS; PHASE; PLASTICITY
URI
https://oasis.postech.ac.kr/handle/2014.oak/22716
DOI
10.1142/S0217979208046463
ISSN
0217-9792
Article Type
Article
Citation
INTERNATIONAL JOURNAL OF MODERN PHYSICS B, vol. 22, no. 9-11, page. 1153 - 1158, 2008-04-30
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이성학LEE, SUNG HAK
Dept of Materials Science & Enginrg
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