Abstract
Abstract The microstructural evolution of undercooled Ni-1 at.% Fe alloy was investigated by means of fluxing and cyclic superheating. Within the achieved undercoolings, there were two grain refinement processes and a grain coarsening process. The evolution mechanisms of the microstructure were studied applying the calculation of a stress accumulation model and dimensionless superheating. The first grain refinement can be ascribed to the dendrite break-up or ripening induced by remelting. The second one was caused by recrystallization induced by stress accumulation originating from the rapid solidification.
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Schedule a callMore From: International Journal of Materials Research (formerly Zeitschrift fuer Metallkunde)
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