Effect of strain rate on compressive behavior of Ti45Zr16Ni9Cu10Be20 bulk metallic glass

Jia Zhang; Jin Man Park; Do Hyang Kim; Hyoung Seop Kim

doi:10.1016/j.msea.2006.02.405

Effect of strain rate on compressive behavior of Ti₄₅Zr₁₆Ni₉Cu₁₀Be₂₀ bulk metallic glass

Jia Zhang, Jin Man Park, Do Hyang Kim, Hyoung Seop Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article

39 Citations (Scopus)

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	https://doi.org/10.1016/j.msea.2006.02.405
Publication status	Published - 2007 Mar 25

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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Zhang, J., Park, J. M., Kim, D. H., & Kim, H. S. (2007). Effect of strain rate on compressive behavior of Ti₄₅Zr₁₆Ni₉Cu₁₀Be₂₀ bulk metallic glass. Materials Science and Engineering A, 448-451, 290-294. https://doi.org/10.1016/j.msea.2006.02.405

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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.",

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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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