Ideal shear strength of γ-Ni3Al and β-NiAl alloys

A.M. Iskandarov1, K.A. Bukreeva2, Y. Umeno1, S.V. Dmitriev2
1Institute of Industrial Science, the University of Tokyo, 4-6-1 Komaba, Meguro-ku, 153-8505 Tokyo
2Институт проблем сверхпластичности металлов РАН, ул. Халтурина 39, 450001 Уфа
Abstract
 Theoretical strength of two intermetallic alloys γ-Ni3Al and β-NiAl was calculated at different temperatures by means of molecular dynamics simulation. At the instability point de-fect-free crystals of both alloys undergo full Burgers vector shear in case of shear in direction of full dislocation and un-dergo stacking fault formation in case of shear along partial dislocation. Critical stress reached at the instability point decreases linearly for both alloys as temperature rises. Critical strain shows only modest variation with temperature.
Received: 27 December 2012   Accepted: 17 January 2013
Views: 67   Downloads: 13
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Cited by
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Букреева К.А., Бабичева Р.И., Дмитриев С.В., Zhou K., Мулюков Р.Р., Потекаев А.И., Известия высших учебных заведений. Физика 57(1), 63-72 (2014).
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Букреева К.А., Дмитриев С.В., Мулюков Р.Р., Фундаментальные проблемы современного материаловедения 11(2), 210-216 (2014).