Abstract
Diffusion induced grain boundary migration has been studied as a function of misorientation. using initially symmetrical tilt grain boundaries in copper exposed to zinc vapor. The migration rate, solute penetration depth and the zinc concentration in the wake of the boundary are all strongly dependent on the grain boundary parameters. The studied processes occur at much lower rates when the diffusion direction is across rather than along the tilt axis, but the dependence upon misorientation persists. The morphology of the alloyed material also depends upon the initial grain boundary misorientation, and we present some data concerning the distribution of solute developed by the process.
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