The effect, upon kink-band formation, of hydrostatic pressures of up to 730MPa was studied. It was shown that kink-band formation occurred even under hydrostatic conditions if the crystals were compressed along the [001] direction while slip via the principal {110}<100> slip system was forbidden. The use of high pressures reduced the crystal brittleness and the stress for kink-band formation, and also hindered the localization of deformation in kink-band formation. The compression of crystals, using high hydrostatic pressures, led to the formation of broad and diffuse kink bands. A critical pressure of 400MPa was identified, above which the crystal exhibited a qualitatively different behavior; in that the kink bands broadened and the stress which was required for kink formation became constant. The participation of secondary slip systems in the process was revealed.

G.N.Yermolaev, A.A.Urusovskaya, L.A.Ivanov: Kristallografiya, 1995, 40[5], 977-83 (Crystallography Reports, 1995, 40[5], 811-7)