Abstract
When a liquid phase sintered 85Mo-15Ni alloy (by weight) is heat treated at sintering temperature in contact with Mo-W6Ni alloys, the nearly spherical grains of the Mo-Ni alloy become corrugated by dissolution of the initial solid at some grain surface regions and by reprecipitation of Mo-W-Ni alloy at the adjacent surface regions. A W concentration gradient exists in the sintered specimen because of the slow diffusion of W and the reprecipitation of the W-containing alloy. The corrugation is apparently driven by the diffusional coherency strain at the dissolving surfaces and inhibited by the curvature developing at the solid-liquid interface
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