DIRECTIONAL RECRYSTALLIZATION PROCESSING OF ADDITIVELY MANUFACTURED METAL ALLOYS

Abstract: a method and apparatus used in preparing a recrystallized metal alloy involve a cooling medium and a heating element to create a cold zone and a hot zone. an additively manufactured metal alloy preform is drawn in a draw direction from the cold zone towards the hot zone to form the recrystallized metal alloy. the cold zone and the hot zone create a surface temperature gradient on at least a portion of the preform of at least about 10k m. the step of drawing causes an average grain size of at least a portion of the preform to increase in a direction parallel to the draw direction.

Inventor(s): Zachary C. Cordero, Dominic David. R. Peachey, Christopher Pratt Carter, Andres Garcia Jimenez

CPC Classification: B22F10/64 (WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER (making alloys by powder metallurgy ); APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER)

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