Local heat treatment for improved fatigue resistance in turbine components
A method for locally heat-treating a gas turbine engine superalloy article to improve resistance to strain-induced fatigue of the article is disclosed. The method comprises providing a gas turbine engine superalloy article having a gamma prime solvus temperature; and locally over aging only a select...
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Main Author | |
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Format | Patent |
Language | English |
Published |
25.02.2010
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Subjects | |
Online Access | Get full text |
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Summary: | A method for locally heat-treating a gas turbine engine superalloy article to improve resistance to strain-induced fatigue of the article is disclosed. The method comprises providing a gas turbine engine superalloy article having a gamma prime solvus temperature; and locally over aging only a selected portion of the article to locally improve fatigue resistance at the selected portion of the article, wherein the local over age cycle includes heating at about 843° C. for about 3 to 4 hours. |
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Bibliography: | Application Number: US20080317176 |