COMPONENT AND PROCESS OF PRODUCING COMPONENT WITH REGION HAVING DIFFERENT GRAIN STRUCTURE

PROBLEM TO BE SOLVED: To provide processes for fabricating components to have two or more regions with different grain structures, and components produced by such processes.SOLUTION: First and second preforms are formed of first and second precipitation-strengthened alloys, respectively, and the fir...

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Bibliographic Details
Main Authors WESSMAN ANDREW EZEKIEL, MOURER DAVID PAUL
Format Patent
LanguageEnglish
Published 10.01.2013
Subjects
ALLOYS
CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:PROBLEM TO BE SOLVED: To provide processes for fabricating components to have two or more regions with different grain structures, and components produced by such processes.SOLUTION: First and second preforms are formed of first and second precipitation-strengthened alloys, respectively, and the first alloy differs from the second alloy by having a higher solvus temperature or a higher grain refiner content. The preforms are joined together to form an article comprising first and second portions formed by the first and second preforms, respectively, and corresponding to first and second regions of the component, respectively, and the interface surfaces of the preforms form a joint between the first and second portions of the article. A supersolvus heat treatment is performed on the article so that greater grain growth occurs in the second portion than in the first portion.
Bibliography:Application Number: JP20120104405