Heat Treatment of Alloys Having Elements for Improving Grain Boundary Strength
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United States of America Patent
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Mar 22, 2012
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Jun 23, 1998
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Abstract
A method of producing a component wherein a directionally solidified columnar grained cast superalloy material is heat treated such that a secondary phase of the alloy is only partly solved, thereby providing improved transverse stress rupture strength compared to fully solved alloys.
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