Publications by authors named "Benoit Devincre"
Article Synopsis
- The study investigates how dislocation mechanisms near free surfaces in a nearly undamaged Ni single crystal respond to a new sample preparation technique.
- The main finding is that small-scale plasticity is influenced by the transformation of tangled dislocations into stable single arm sources (SASs) and the subsequent activity of these sources.
- Additionally, the research explores how the shortening of dislocation sources affects strain hardening and intermittent plastic flow, contributing to a better understanding of dislocation-controlled plasticity and its size-dependent effects.
At high pressure prevailing in the lower mantle, lattice friction opposed to dislocation glide becomes very high, as reported in recent experimental and theoretical studies. We examine the consequences of this high resistance to plastic shear exhibited by ringwoodite and bridgmanite on creep mechanisms under mantle conditions. To evaluate the consequences of this effect, we model dislocation creep by dislocation dynamics.
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