Heat resistant alloy member, method for manufacturing the same, and method for repairing the same

A heat resistant alloy member (3) that maintains the creep strength and improves the fatigue characteristics is provided. The heat resistant alloy member (3) according to the present invention includes a recrystallized structure layer (1) including finer grains on the surface of the member (3) than...

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Bibliographic Details
Main Authors PARK SEUNGHWAN, KAMOSHIDA HIRONORI, IMANO SHINYA, YOSHIDA TAKEHIKO
Format Patent
LanguageEnglish
Published 22.04.2015
Subjects
BLASTING
CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS
CHEMISTRY
ENGINE PLANTS IN GENERAL
FERROUS OR NON-FERROUS ALLOYS
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
METALLURGY
NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES
STEAM ENGINES
TREATMENT OF ALLOYS OR NON-FERROUS METALS
WEAPONS
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Summary:A heat resistant alloy member (3) that maintains the creep strength and improves the fatigue characteristics is provided. The heat resistant alloy member (3) according to the present invention includes a recrystallized structure layer (1) including finer grains on the surface of the member (3) than those inside of the member (3). The recrystallized structure layer (1) is formed by forming a stirred layer (5) by giving processing strain to the surface of the member (3) using a friction stir processing, and applying recrystallization heat treatment (8) to the stirred layer (5) for recrystallization.
Bibliography:Application Number: CN201210211119