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 › peer-review

43 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

Bibliographical note

Funding Information:
This work was supported by Korea Research Foundation Grant (KRF-2005-202-D00205). One of the authors (JZ) is grateful to the financial support of KOSEF for her study leave at CNU through the KOSEF postdoctoral fellowship.

All Science Journal Classification (ASJC) codes

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

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title = "Effect of strain rate on compressive behavior of Ti45Zr16Ni9Cu10Be20 bulk metallic glass",

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.",

author = "Jia Zhang and Park, {Jin Man} and Kim, {Do Hyang} and Kim, {Hyoung Seop}",

note = "Funding Information: This work was supported by Korea Research Foundation Grant (KRF-2005-202-D00205). One of the authors (JZ) is grateful to the financial support of KOSEF for her study leave at CNU through the KOSEF postdoctoral fellowship.",

year = "2007",

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doi = "10.1016/j.msea.2006.02.405",

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AU - Zhang, Jia

AU - Park, Jin Man

AU - Kim, Do Hyang

AU - Kim, Hyoung Seop

N1 - Funding Information: This work was supported by Korea Research Foundation Grant (KRF-2005-202-D00205). One of the authors (JZ) is grateful to the financial support of KOSEF for her study leave at CNU through the KOSEF postdoctoral fellowship.

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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