Abstract
Tensile tests were performed on high-purity W and Mo polycrystals at room temperature for a range of axial strain-rates 2.1 × 10−4–2.1 × 10−2 s−1. The critical resolved shear stress (CRSS) data was analyzed by using the analytical formulation for the strain-rate dependence of the CRSS derived in the kink-pair nucleation (KPN) model of flow stress in crystals with high intrinsic lattice friction. On evaluation of various microscopic slip-parameters of the model, the active slip-system in both W and Mo polycrystals was identified as {110}〈111〉. This is in good agreement with that deduced from the published data on the temperature dependence of the CRSS of these crystals as well as from the observed slip-lines on the deformed crystals reported in the literature. Moreover, the available data on the temperature dependence of the CRSS of Mo, Nb, Fe, V, and K crystals were also analyzed within the framework of the KPN model of flow stress. Peierls mechanism was found to be responsible for the CRSS of these metals; the active slip-systems in refractory metals Mo, Nb, Fe, and V were {110}〈111〉 and {211}〈111〉 whereas that in alkali metal K was {321}〈111〉.
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Orowan E (1934) Z fuer Phys 89:605
Polanyi M (1934) Z Phys 89:660
Taylor G (1934) Proc R Soc A 145:363
Taylor G (1934) Proc Roy Soc A145:388
Zamiri AR, Pourboghrat F (2010) Int J Plast 26:731
Kaun L, Luft A, Richter J, Schulze D (1968) Phys Stat Sol 26:485
Guiu F, Pratt PL (1966) Phys Stat Sol 15:539
Takeuchi S, Maeda K (1977) Acta Metall 25:1485
Nagakawa J, Meshii M (1981) Phil Mag A 44:11651
Wasserbach W (1995) Phys Stat Sol (a) 147:417
Seeger A, Wasserbach W (2002) Phys Stat Sol (a) 189:27
Butt MZ (2007) Phil Mag 87:3595
Butt MZ, Khaleeq-ur-Rahman M, Dilawar Ali (2009) J Phys D Appl Phys 42:035405
Malygin GA (2005) Phys Solid State 47:896
Feltham P, Kauser N (1990) Phys Stat Sol (a) 117:135
Arsenault RJ (1967) Acta Metall 15:501
Feltham P (1969) J Phys D Appl Phys 2:377
Abed FH, Voyiadjis GZ (2005) Acta Mech 175:1
Little EA (1976) J Aust Inst Metals 21:50
Nemat-Nasser S, Guo W, Liu M (1999) Scripta Mater 40:859
Brunner D (2000) Mater Trans JIM 41:152
Suzuki T, Koizumi H, Kirchner HOK (1995) Acta Metall Mater 43:2177
Peters BC, Hendrickson AA (1970) Metall Trans 1:2271
Brunner D, Diehl J (1987) Phys Stat Sol (a) 104:145
Brunner D, Diehl J, Seeger A (1984) In: Paidar V, Lejcek L (eds) The structure and properties of crystal defects. Elsevier Publishing Co, Amsterdam, p 175
Diehl J, Schreiner M, Staiger S, Ziesele S (1976) Scripta Metall 10:949
Horne GT, Roy RB, Paxton HW (1963) J Iron Steel Inst 201:161
Takeuchi S, Yoshida H, Taoka T (1968) Trans Jpn Inst Met Suppl 9:715
Wang CT, Banbridge DW (1972) Metall Trans 3: 3161
Yoshinaga H, Toma K, Abe K, Morozumi S (1971) Phil Mag 23:1387
Basinski ZS, Duesbery MS, Murty GS (1981) Acta Metall 29:801
Conard H, Hayes W (1963) Trans ASM 56:249
Groger R (2007) Development of physically based plastic flow rules for body-centered cubic metals with temperature and strain rate dependencies. PhD Thesis, University of Pennsylvania
Ackermann F, Mughrabi H, Seeger A (1983) Acta Metall 31:1353
Spitzig WA, Keh AS (1970) Metall Trans 1:2751
Aono Y, Kuramoto E, Kitajima K (1981) Rep Res Inst Appl Mech 29:127
Brunner D, Diehl J (1991) Phy Stat Sol (a) 124:455
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Ali, D., Mushtaq, N. & Butt, M.Z. Investigation of active slip-systems in some body-centered cubic metals. J Mater Sci 46, 3812–3821 (2011). https://doi.org/10.1007/s10853-011-5295-0
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DOI: https://doi.org/10.1007/s10853-011-5295-0