TY - JOUR

T1 - Effect of velocity nonuniformity on the dynamic recrystallization of metals in shock waves

AU - Meshcheryakov, Yu I.

AU - Divakov, A. K.

AU - Atroshenko, S. A.

AU - Naumova, N. S.

PY - 2010/12/31

Y1 - 2010/12/31

N2 - A series of mechanical tests on D16 aluminum alloy samples under uniaxial strain conditions in single and double impact loading regimes showed that dynamic recrystallization in localized shear bands takes place only in the latter case, with the second (additional loading) pulse delayed by 0.5-0.7 μs relative to the first shock-wave front. It is established that, in addition to well-known conditions (γ ≥ 3, γ̇ ≥ 10 4 s -1 , T ≥ 0.4T m ), a determining role in the dynamic recrystallization process is played by the nonuniformuty (variation) of mass velocity at the leading front of the compression pulse.

AB - A series of mechanical tests on D16 aluminum alloy samples under uniaxial strain conditions in single and double impact loading regimes showed that dynamic recrystallization in localized shear bands takes place only in the latter case, with the second (additional loading) pulse delayed by 0.5-0.7 μs relative to the first shock-wave front. It is established that, in addition to well-known conditions (γ ≥ 3, γ̇ ≥ 10 4 s -1 , T ≥ 0.4T m ), a determining role in the dynamic recrystallization process is played by the nonuniformuty (variation) of mass velocity at the leading front of the compression pulse.

UR - http://www.scopus.com/inward/record.url?scp=78650593085&partnerID=8YFLogxK

U2 - 10.1134/S1063785010120187

DO - 10.1134/S1063785010120187

M3 - Article

AN - SCOPUS:78650593085

VL - 36

SP - 1125

EP - 1128

JO - Technical Physics Letters

JF - Technical Physics Letters

SN - 1063-7850

IS - 12

ER -