| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Shock Compression of the New 47Zr45Ti5Al3V Alloys up to 200 GPa |
| ZHANG Pin-Liang1, GONG Zi-Zheng1,2**, JI Guang-Fu3, WANG Qing-Song3, SONG Zhen-Fei3, CAO Yan2, WANG Xiang3 |
1Key Laboratory of Advanced Technologies of Materials of Ministry of Education, School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031
2National Key Laboratory of Science and Technology on Reliability and Environment Engineering, Beijing Institute of Spacecraft Environment Engineering, Beijing 100094
3Laboratory for Shock Wave & Detonation Physics Research, Institute of Fluid Physics, China Academy of Engineering Physics (CAEP), Mianyang 621900
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| Cite this article: |
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ZHANG Pin-Liang, GONG Zi-Zheng, JI Guang-Fu et al 2013 Chin. Phys. Lett. 30 066401 |
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Abstract Shock compression experiments on a new kind of 47Zr45Ti5Al3V alloys at pressures between 28 and 200 GPa are performed using a two-stage light gas gun. The Hugoniot data are obtained by combining the impedance-match method and the electrical probe technique. The relationship between the shock wave velocity Us and particle velocity up can be described linearly by Us=4.324(±0.035) +1.177(±0.012) up. No obvious evidence of phase transition is found in the shock compression pressure range. The calculated Us?up relationship obtained from the additive principle is different from the experimental data, indicating that the α→β phase transition occurs below 28 GPa. The Grüneisen parameter γ obtained from the experimental data can be expressed by γ=1.277(ρ0/ρ). The zero-pressure bulk modulus B0s=97.96 GPa and its pressure derivative B'0s=3.68. The P–V–T equation of state for 47Zr45Ti5Al3V is given using the Vinet equation of state to describe the cold curve and the Debye model for the thermal contributions.
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Received: 04 January 2013
Published: 31 May 2013
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| PACS: |
64.30.Ef
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(Equations of state of pure metals and alloys)
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81.05.Bx
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(Metals, semimetals, and alloys)
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