POWDER METALLURGY METHOD FOR PRODUCING NON-MOLYBDENUM-SEGREGATED ARTICLE

A powder metallurgy method for producing a non-molybdenum-segregated article is disclosed. The method includes use of a Ni-Mo-Cr powder that has a composition in which Ni is the base element and the Mo and Cr are alloy elements. The composition comprises, by weight, at least 20% of the Mo, and the M...

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Bibliographic Details
Main Authors BALES, Daniel A, ASARE, Ted A, HAYNES, Andrew L
Format Patent
LanguageEnglish
French
German
Published 11.01.2023
Subjects
ALLOYS
CASTING
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
METALLURGY
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
WORKING METALLIC POWDER
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Summary:A powder metallurgy method for producing a non-molybdenum-segregated article is disclosed. The method includes use of a Ni-Mo-Cr powder that has a composition in which Ni is the base element and the Mo and Cr are alloy elements. The composition comprises, by weight, at least 20% of the Mo, and the Mo is dispersed in the Ni-Mo-Cr powder. The Ni-Mo-Cr powder is inserted into a hermetic chamber of a canister, followed by evacuating the hermetic chamber. The canister with the Ni-Mo-Cr powder in the hermetic chamber is then subjected to a hot isostatic pressing process that includes heating the canister and the Ni-Mo-Cr powder and applying isostatic pressure to the canister. The heating and the isostatic pressure causes fusion and consolidation of the Ni-Mo-Cr powder to form a solid article. The Mo remains dispersed such that the solid article is non-molybdenum-segregated. The canister is then removed from the solid article.
Bibliography:Application Number: EP20190204177