Abstract
Compressive behavior of Ti45Zr16Ni9Cu10Be20 (numbers indicate at.%) bulk metallic glasses was investigated at strain rates ranging from 10-4 to 10-1 s-1. Little effect of strain rate on the mechanical properties is observed in an amorphous specimen when the strain rates are below 10-3 s-1. An appreciable total strain of about 5% is observed and the plastic flow is serrated. However, a positive strain rate dependence of yield strength is found when the strain rate reaches 10-1 s-1, which is reported for the first time in metallic glasses under a compressive loading condition. Further, the macroscopic plastic strain distinctly decreases and flow serration vanishes at a high strain rate. A comparison of the significantly different mechanical behavior of Ti45Zr16Ni9Cu10Be20 bulk metallic glass with other bulk metallic glass systems is also presented.
| Original language | English |
|---|---|
| Pages (from-to) | 290-294 |
| Number of pages | 5 |
| Journal | Materials Science and Engineering A |
| Volume | 448-451 |
| DOIs | |
| Publication status | Published - 2007 Mar 25 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
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Effect of strain rate on compressive behavior of Ti45Zr16Ni9Cu10Be20 bulk metallic glass. / Zhang, Jia; Park, Jin Man; Kim, Do Hyang; Kim, Hyoung Seop.
In: Materials Science and Engineering A, Vol. 448-451, 25.03.2007, p. 290-294.Research output: Contribution to journal › Article
TY - JOUR
T1 - Effect of strain rate on compressive behavior of Ti45Zr16Ni9Cu10Be20 bulk metallic glass
AU - Zhang, Jia
AU - Park, Jin Man
AU - Kim, Do Hyang
AU - Kim, Hyoung Seop
PY - 2007/3/25
Y1 - 2007/3/25
N2 - Compressive behavior of Ti45Zr16Ni9Cu10Be20 (numbers indicate at.%) bulk metallic glasses was investigated at strain rates ranging from 10-4 to 10-1 s-1. Little effect of strain rate on the mechanical properties is observed in an amorphous specimen when the strain rates are below 10-3 s-1. An appreciable total strain of about 5% is observed and the plastic flow is serrated. However, a positive strain rate dependence of yield strength is found when the strain rate reaches 10-1 s-1, which is reported for the first time in metallic glasses under a compressive loading condition. Further, the macroscopic plastic strain distinctly decreases and flow serration vanishes at a high strain rate. A comparison of the significantly different mechanical behavior of Ti45Zr16Ni9Cu10Be20 bulk metallic glass with other bulk metallic glass systems is also presented.
AB - Compressive behavior of Ti45Zr16Ni9Cu10Be20 (numbers indicate at.%) bulk metallic glasses was investigated at strain rates ranging from 10-4 to 10-1 s-1. Little effect of strain rate on the mechanical properties is observed in an amorphous specimen when the strain rates are below 10-3 s-1. An appreciable total strain of about 5% is observed and the plastic flow is serrated. However, a positive strain rate dependence of yield strength is found when the strain rate reaches 10-1 s-1, which is reported for the first time in metallic glasses under a compressive loading condition. Further, the macroscopic plastic strain distinctly decreases and flow serration vanishes at a high strain rate. A comparison of the significantly different mechanical behavior of Ti45Zr16Ni9Cu10Be20 bulk metallic glass with other bulk metallic glass systems is also presented.
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U2 - 10.1016/j.msea.2006.02.405
DO - 10.1016/j.msea.2006.02.405
M3 - Article
AN - SCOPUS:33847215408
VL - 448-451
SP - 290
EP - 294
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
SN - 0921-5093
ER -