Measurement of strength in a Zr-based bulk metallic glass under dynamic high-pressure loading

Yu Yu-ying; Xi Feng; Dai Cheng-da; Cai Ling-cang; Tan Hua; Li Xue-mei

Volume 34 Issue 1

Mar. 2014

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Yu Yu-ying, Xi Feng, Dai Cheng-da, Cai Ling-cang, Tan Hua, Li Xue-mei. Measurement of strength in a Zr-based bulk metallic glass under dynamic high-pressure loading[J]. Explosion And Shock Waves, 2014, 34(1): 1-5.

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Yu Yu-ying, Xi Feng, Dai Cheng-da, Cai Ling-cang, Tan Hua, Li Xue-mei. Measurement of strength in a Zr-based bulk metallic glass under dynamic high-pressure loading[J]. Explosion And Shock Waves, 2014, 34(1): 1-5.

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Measurement of strength in a Zr-based bulk metallic glass under dynamic high-pressure loading

National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621999, Sichuan, China

Funds: Supported by the National Natural Science Foundation of China (10732010, 10972206, 11172281)

Received Date: 2012-07-25
Rev Recd Date: 2013-01-01
Publish Date: 2014-01-25

Abstract

Abstract

To investigate the dynamic strength behaviors of a Zr-based bulk metallic glass(BMG), Zr51Ti5Ni10Cu25Al9(in atomic percent), a series of reverse-impact experiments were performed in the peak shock stress range from 37to 66GPa.A displacement interferometer system for any reflector(DISAR)was used to measure the particle velocity profiles at the sample/LiF window interface.By analyzing the measured particle velocity profiles, the yield strength and shear modulus of the Zr-based BMG were obtained.The experimental results show that both the yield strength and the shear modulus of the Zr-based BMG increase with the increasing of the shock stresses in the stress range considered here.And the shear stress relaxation across the shock wave front of the Zr-based BMG is not due to the shock-induced damage/failure or temperature softening.
- solid mechanics,
- yield strength,
- DISAR,
- bulk metallic glass,
- shear modulus,
- shock wave

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References(19)

References

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