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By taking the pressure effect into account in the free volume evolution, the yield asymmetry between tension and compression of metallic glasses under different temperatures is investigated. The yield strength in MGs with a (T/Tg)1/2 temperature dependence is obtained for both tension and compression. The pressure - sensitive factor is derived to be a constant ~ 0.1 within a broad range of temperatures. Furthermore, it is revealed that, the declining effect of pressure on the free volume evolution causes a weaker tension - compression asymmetry with increasing temperature. The significant structural relaxation at high temperature slows down the free volume evolution and hinders the sharp yield. These results improve our understanding of the underlying mechanisms of the yielding and its asymmetry between tension and compression in MGs.
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Keywords:
- metallic glass /
- yield /
- asymmetry between tension and compression /
- free volume
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[4] Dai L H, Bai Y L 2008 Int. J. Impact Eng. 35 704
[5] Wang X Y, Chen Y, Zhang N Y, Zhao L P, Pang Y T, Wang W K 2007 Acta Phys. Sin. 56 4004 (in Chinese)[ 王秀英, 陈莹, 张宁玉, 赵丽萍, 庞岩涛, 王文魁 2007 物理学报 56 4004]
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[11] Chen M W 2008 Annu. Rev. Mater. Res. 38 445
[12] Schuh C A, Lund A C 2003 Nat. Mater. 2 449
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[20] Lu J, Ravichandran G, Johnson W L 2003 Acta Mater. 51 3429
[21] Johnson W, Samwer K 2005 Phys. Rev. Lett. 95 195501
[22] Prasad E K, Raghavan R, Ramamurty U 2007 Scr. Mater. 57 121
[23] Sun L, Jiang M Q, Dai L H 2010 Scr. Mater. 63 945
[24] Spaepen F 1977 Acta Metall. 25 407
[25] Huang R, Suo Z, Prevost J H, NixWD 2002 J. Mech. Phys. Solids 50 1011
[26] Gao Y F 2006 Modelling Simul. Mater. Sci. Eng. 14 1329
[27] Keryvin V 2008 J. Phys. 20 114119
[28] Steif P S 1983 J. Mech. Phys. Solids 31 359
[29] Launey M E, Kruzic J J, Li C, Busch R 2007 Appl. Phys. Lett. 91 051913
[30] Li F, Liu X, Hou H, Chen G, Li M 2009 Intermetallics 17 98
[31] Sietsma J, Thijsse B J 1995 Phys. Rev. B 52 3248
[32] Wang J G, Zhao D Q, Pan M X, Wang W H, Song S X, Nieh T G 2010 Scr. Mater. 62 477
[33] Yang Q, Mota A, Ortiz M 2005 Comput. Mech. 37 194
[34] Jiang M Q, Dai L H 2009 J. Mech. Phys. Solids 57 1267
[35] Lund A C, Schuh C A 2003 Acta Metall. 51 5399
[36] Packard C E, Schuh C A 2007 Acta Mater. 55 5348
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[1] Wang W H, Dong C, Shek C H 2004 Mater. Sci. Eng. R 44 45
[2] Yao K F, Ruan F, Yang Y Q, Chen N 2006 Appl. Phys. Lett. 88 122106
[3] Li G, Liu J, Liu R P 2007 Chin. Phys. Lett. 24 2323
[4] Dai L H, Bai Y L 2008 Int. J. Impact Eng. 35 704
[5] Wang X Y, Chen Y, Zhang N Y, Zhao L P, Pang Y T, Wang W K 2007 Acta Phys. Sin. 56 4004 (in Chinese)[ 王秀英, 陈莹, 张宁玉, 赵丽萍, 庞岩涛, 王文魁 2007 物理学报 56 4004]
[6] Guo G Q, Yang L, Zhang G Q 2011 Acta Phys. Sin. 60 016103 (in Chinese)[郭古青, 杨亮, 张国庆 2007 物理学报 60 016103]
[7] Jiang M Q, Ling Z, Meng J X, Dai L H 2008 Philos. Mag. 88 407
[8] Meng J X, Ling Z, Jiang M Q, Zhang H S, Dai L H 2008 Appl. Phys. Lett. 92 171909
[9] Schuh C, Hufnagel T, Ramamurty U 2007 Acta Mater. 55 4067
[10] Trexler M M, Thadhani N N 2010 Prog. Mater. Sci. 55 759
[11] Chen M W 2008 Annu. Rev. Mater. Res. 38 445
[12] Schuh C A, Lund A C 2003 Nat. Mater. 2 449
[13] Flores K M, Dauskardt R H 2001 Acta Mater. 49 2527
[14] Ott R T, Sansoz F, Jiao T, Warner D, Fan C, Molinari J F, Ramesh K T, Hufnagel T C 2006 Metall. Mater. Trans. A 37 3251
[15] Hsueh C H, Bei H, Liu C T, Becher P F, George E P 2008 Scr. Mater. 59 111
[16] Cohen M H, Turnbull D 1959 J. Chem. Phys. 31 1164
[17] Zong H T, Ma M Z, Zhang X Y, Qi L, Li G, Jing Q, Liu R P 2011 Chin. Phys. Lett. 28 036103
[18] Anand L, Su C 2005 J. Mech. Phys. Solids 53 1362
[19] Zhang Z F, Eckert J, Schultz L 2003 Acta Metall. 51 1167
[20] Lu J, Ravichandran G, Johnson W L 2003 Acta Mater. 51 3429
[21] Johnson W, Samwer K 2005 Phys. Rev. Lett. 95 195501
[22] Prasad E K, Raghavan R, Ramamurty U 2007 Scr. Mater. 57 121
[23] Sun L, Jiang M Q, Dai L H 2010 Scr. Mater. 63 945
[24] Spaepen F 1977 Acta Metall. 25 407
[25] Huang R, Suo Z, Prevost J H, NixWD 2002 J. Mech. Phys. Solids 50 1011
[26] Gao Y F 2006 Modelling Simul. Mater. Sci. Eng. 14 1329
[27] Keryvin V 2008 J. Phys. 20 114119
[28] Steif P S 1983 J. Mech. Phys. Solids 31 359
[29] Launey M E, Kruzic J J, Li C, Busch R 2007 Appl. Phys. Lett. 91 051913
[30] Li F, Liu X, Hou H, Chen G, Li M 2009 Intermetallics 17 98
[31] Sietsma J, Thijsse B J 1995 Phys. Rev. B 52 3248
[32] Wang J G, Zhao D Q, Pan M X, Wang W H, Song S X, Nieh T G 2010 Scr. Mater. 62 477
[33] Yang Q, Mota A, Ortiz M 2005 Comput. Mech. 37 194
[34] Jiang M Q, Dai L H 2009 J. Mech. Phys. Solids 57 1267
[35] Lund A C, Schuh C A 2003 Acta Metall. 51 5399
[36] Packard C E, Schuh C A 2007 Acta Mater. 55 5348
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