FORFARANDE FOR PULVERMETALLURGISK FRAMSTELLNING AV ETT ARBETSSTYCKE AV EN LEGERING MED HOG VERMEBESTENDIGHET

A method for powder metallurgical production of a high temperature alloy body consists of mixing powdered alloy components or pre-alloys in the desired proportions; cold working the mix under a protective atmosphere; canning the cold-worked powder mixture; compressing the canned powder by extrusion...

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Bibliographic Details
Main Author GESSINGER G
Format Patent
LanguageSwedish
Published 21.04.1977
Subjects
ALLOYS
CASTING
CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
FORGE FURNACES
FORGING
HAMMERING
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
METALLURGY
PERFORMING OPERATIONS
POWDER METALLURGY
PRESSING METAL
PUNCHING METAL
RIVETING
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
WORKING METALLIC POWDER
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Summary:A method for powder metallurgical production of a high temperature alloy body consists of mixing powdered alloy components or pre-alloys in the desired proportions; cold working the mix under a protective atmosphere; canning the cold-worked powder mixture; compressing the canned powder by extrusion or hot isostatic pressing to a form of dense blank; cutting said blank into slices; forging them at a constant temperature within the range of from 0.6 to 0.75 of the melting point at a strain rate of from 10-3 to 100 S-1; and thereafter subjecting the forged body to a coarse-grain annealing between 1230 DEG and 1300 DEG C for up to 3 hours.
Bibliography:Application Number: SE19760011473