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This paper provides an investigation of the phase transition and the spalling characteristics induced during shock loading and unloading in an α phase Fe-based alloy. Two kinds of impact set-ups are used. One is referred to as the direct impact, and the other is the reverse impact. The shock Hugoniot and the release stress-volume adiabat of the α phase Fe-based alloy are obtained. And the results show that the history of loading and unloading is determined by the relationship among the phase transition threshold and the reverse transition threshold and the shock pressure. It is found that abnormal spallations happen in the α phase Fe-based alloy sample as the pressure exceeds the phase transition threshold. Such abnormal spalling phenomena are believed to be related to the shocked α→ε phase transition, and a possible reason for the abnormal spalling is discussed also from the interaction process of stress wave.
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Keywords:
- α phase Fe-based alloy /
- phase transition /
- reverse phase transition /
- spall
[1] Bancroft D, Peterson E, Minshall S 1956 J. Appl. Phys. 27 291
[2] Cui X L, Zhu W J, Deng X L, Li Y J, He H L 2006 Acta Phys. Sin. 55 5545 (in Chinese) [崔新林、祝文军、邓小良、李英俊、贺红亮 2006 55 5545]
[3] Shao J L, Wang P, Qin C S, Zhou H Q 2008 Acta Phys. Sin. 57 1254 (in Chinese) [邵建立、王 裴、秦承森、周洪强 2008 57 1254]
[4] Shao J L, Wang P, Qin C S, Zhou H Q 2007 Acta Phys. Sin. 56 5389 (in Chinese) [邵建立、王 裴、秦承森、周洪强 2007 56 5389]
[5] Shao J L, Wang P, Qin C S 2009 Acta Phys. Sin. 58 1936 (in Chinese) [邵建立、王 裴、秦承森 2009 58 1936]
[6] Barker L M, Hollenbach R E 1974 J. Appl. Phys. 45 4872
[7] Veeser L R, Gray G T, Vorthman J E, Rodriguez P J, Hixson R S, Hayes D B 1999 Shock Compression of Condensed Matter 73
[8] Christophe Voltz, Gilles Roy 2003 Shock Compression of Condensed Matter 511
[9] Christophe Voltz, Francois Buy, Gilles Roy 2005 Shock Compression of Condensed Matter 678
[10] Tang X J, HU H B 2006 Explosion and Shock Waves 26 115 (in Chinese) [唐小军、胡海波 2006 爆炸与冲击 26 115]
[11] Zhang X H, Tang Z P, Tang X J 2007 Explosion and Shock Waves 27 103 (in Chinese) [张兴华、唐志平、唐小军 2007 爆炸与冲击 27 103]
[12] Petrovtsev A V, Bychenkov V A 2001 Shock Compression of Condensed Matter 591
[13] Xu W W, Tang Z P, Zhang X H 2009 Chinese Journal of High Pressure Physics 23 17 (in Chinese) [徐薇薇、唐志平、张兴华 2009 高压 23 17]
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[1] Bancroft D, Peterson E, Minshall S 1956 J. Appl. Phys. 27 291
[2] Cui X L, Zhu W J, Deng X L, Li Y J, He H L 2006 Acta Phys. Sin. 55 5545 (in Chinese) [崔新林、祝文军、邓小良、李英俊、贺红亮 2006 55 5545]
[3] Shao J L, Wang P, Qin C S, Zhou H Q 2008 Acta Phys. Sin. 57 1254 (in Chinese) [邵建立、王 裴、秦承森、周洪强 2008 57 1254]
[4] Shao J L, Wang P, Qin C S, Zhou H Q 2007 Acta Phys. Sin. 56 5389 (in Chinese) [邵建立、王 裴、秦承森、周洪强 2007 56 5389]
[5] Shao J L, Wang P, Qin C S 2009 Acta Phys. Sin. 58 1936 (in Chinese) [邵建立、王 裴、秦承森 2009 58 1936]
[6] Barker L M, Hollenbach R E 1974 J. Appl. Phys. 45 4872
[7] Veeser L R, Gray G T, Vorthman J E, Rodriguez P J, Hixson R S, Hayes D B 1999 Shock Compression of Condensed Matter 73
[8] Christophe Voltz, Gilles Roy 2003 Shock Compression of Condensed Matter 511
[9] Christophe Voltz, Francois Buy, Gilles Roy 2005 Shock Compression of Condensed Matter 678
[10] Tang X J, HU H B 2006 Explosion and Shock Waves 26 115 (in Chinese) [唐小军、胡海波 2006 爆炸与冲击 26 115]
[11] Zhang X H, Tang Z P, Tang X J 2007 Explosion and Shock Waves 27 103 (in Chinese) [张兴华、唐志平、唐小军 2007 爆炸与冲击 27 103]
[12] Petrovtsev A V, Bychenkov V A 2001 Shock Compression of Condensed Matter 591
[13] Xu W W, Tang Z P, Zhang X H 2009 Chinese Journal of High Pressure Physics 23 17 (in Chinese) [徐薇薇、唐志平、张兴华 2009 高压 23 17]
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