Numerical evaluation for stage IIA recovery in cold-worked aluminum

Abstract

A new rate equation for the state IIA (60 to 100 K) recovery in cold‐worked aluminum is developed. The equation is based on the annihilation of vacancies by pipe diffusion along an edge dislocation, taking into account the boundary and the initial conditions of diffusing vacancies. An interpretation of the two recovery sub‐peaks in stage IIA (75 and 90 K) is made by using the above rate equation and the result shows a close agreement between experimental facts and computer simulations.

Annealing time dependence of isochronal recovery in cold-worked aluminum

“…Isochronal recovery curves in stage 11, are analyzed by two different models mentioned in Section 1 (models A and B). In model A, two different formation mechanisms in relation to the configuration of vacancy and its sink (jog) on an edge dislocation line are proposed [8]. Here, we summarize briefly the proposition.…”