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Planar shock compression experiments are performed on a Zr-based bulk metallic glass (BMG), Zr51Ti5Ni10Cu25Al9 at peak shock stresses from 10 GPa to 27 GPa to investigate its plastic behavior under high pressure and high strain-rate. The particle velocity profiles measured at the free surface of the samples are analyzed to estimate longitudinal stresses of the Zr-based BMG in the shock loading process,and then shear stresses are obtained by comparing longitudinal stresses with a hydrostat. Though there is an obvious relaxation effect after elastic front, the Hugoniot elastic limit of the Zr-based BMG is found to increase with shock stress increasing. However, the shear stresses across the plastic shock front display stress hardening above the Hugoniot elastic limit followed by a stress relaxation (softening) to Hugoniot state, and the relaxation level also increases with shock stress increasing. The changes of shear stresses under planar shock compression are consistent with the results from molecular dynamic simulations, but obviously different from the pressure-shear impact experimental results or uniaxial stress impact experimental results.
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Keywords:
- plastic behavior /
- shock loading /
- bulk metallic glass /
- shear stress
[1] Johnson W L 1999 MRS bull. 24 42
[2] Inoue A 2000 Acta Mater. 48 279
[3] Wang W H, Dong C, Shek C H 2004 Mater Sci Eng. 44 45
[4] Schuh C A, Hufnagel T C, Ramamurty U 2007 Acta Mater. 55 4067
[5] Trexler M M, Thadhani N N 2010 Prog Mater Sci. 55 759
[6] Mashimo T, Togo H, Zhang Y, Uemura Y, Kinoshita T, Kodama M, Kawamura Y 2006 Appl. Phys. Lett. 89 241904
[7] Xi F, Yu Y Y, Dai C D, Zhang Y , Cai L C 2010 J. Appl. Phys. 108 083537
[8] Togo H, Zhang Y, Kawamura Y, Mashimo T 2007 Mat. Sci. Eng. A 449-451 264
[9] Turneaure S J, Dwivedi S K, Gupta Y M 2007 J. Appl. Phys. 101 043514
[10] Yuan F P, Prakash V 2007 J Mater. Res. 22 402
[11] Zhuang S, Lu J, Ravichandran G 2002 Appl. Phys. Lett. 80 4522
[12] Turneaure S J, Winey J M, Gupta Y M 2004 Appl. Phys. Lett. 84 1692
[13] Turneaure S J, Winey J M, Gupta Y M 2006 J. Appl. Phys. 100 063522
[14] Yuan F P, Prakash V, Lewandowski J J 2010 Mechanics and Materials. 42 248
[15] Arman B, Luo S N, Germann T C, Cagin T 2010 Phys. Rev. B 81 144201
[16] Weng J D, Tan H, Wang X, Ma Y, Hu S L, Wang X S 2006 Appl. Phys. Lett. 89 111101
[17] Zaretsky E B, Kanel G I, Razorenov S V, Baumung K 2005 Int. J. Impact Engng. 31 41
[18] Hu J B, Tan H, Yu Y Y, Dai C D, Ran X W 2008 Acta Phys. Sin. 57 405 (in Chinese) [胡建波, 谭华, 俞宇颖, 戴诚达, 冉宪文 2008 57 405]
[19] Conner R D, Dandliker R B, Scruggs V, Johnson W L 2000 Int. J. Impact Engng. 24 435
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[1] Johnson W L 1999 MRS bull. 24 42
[2] Inoue A 2000 Acta Mater. 48 279
[3] Wang W H, Dong C, Shek C H 2004 Mater Sci Eng. 44 45
[4] Schuh C A, Hufnagel T C, Ramamurty U 2007 Acta Mater. 55 4067
[5] Trexler M M, Thadhani N N 2010 Prog Mater Sci. 55 759
[6] Mashimo T, Togo H, Zhang Y, Uemura Y, Kinoshita T, Kodama M, Kawamura Y 2006 Appl. Phys. Lett. 89 241904
[7] Xi F, Yu Y Y, Dai C D, Zhang Y , Cai L C 2010 J. Appl. Phys. 108 083537
[8] Togo H, Zhang Y, Kawamura Y, Mashimo T 2007 Mat. Sci. Eng. A 449-451 264
[9] Turneaure S J, Dwivedi S K, Gupta Y M 2007 J. Appl. Phys. 101 043514
[10] Yuan F P, Prakash V 2007 J Mater. Res. 22 402
[11] Zhuang S, Lu J, Ravichandran G 2002 Appl. Phys. Lett. 80 4522
[12] Turneaure S J, Winey J M, Gupta Y M 2004 Appl. Phys. Lett. 84 1692
[13] Turneaure S J, Winey J M, Gupta Y M 2006 J. Appl. Phys. 100 063522
[14] Yuan F P, Prakash V, Lewandowski J J 2010 Mechanics and Materials. 42 248
[15] Arman B, Luo S N, Germann T C, Cagin T 2010 Phys. Rev. B 81 144201
[16] Weng J D, Tan H, Wang X, Ma Y, Hu S L, Wang X S 2006 Appl. Phys. Lett. 89 111101
[17] Zaretsky E B, Kanel G I, Razorenov S V, Baumung K 2005 Int. J. Impact Engng. 31 41
[18] Hu J B, Tan H, Yu Y Y, Dai C D, Ran X W 2008 Acta Phys. Sin. 57 405 (in Chinese) [胡建波, 谭华, 俞宇颖, 戴诚达, 冉宪文 2008 57 405]
[19] Conner R D, Dandliker R B, Scruggs V, Johnson W L 2000 Int. J. Impact Engng. 24 435
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