Abstract

The development of surface contour changes at about the welding interfaces of silver/gold alloy diffusion couples with various terminal gold concentrations has been investigated for an annealing temperature of 1081 K. The surface profiles were measured at nine different annealing times for each of the employed diffusion couples. The cross-sectional areas of the developing bulge and groove increase proportionally with annealing time, as has already been observed in other systems. The results can be described in terms of reduced growth coefficients. The unexpected decrease of the effects at high silver concentrations could be explained by a model of mass compensation based on plastic deformation.

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