Braze alloy compositions and brazing methods for superalloys
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United States of America Patent
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May 30, 2017
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app pub date -
Nov 4, 2013
filing date -
Nov 4, 2013
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Abstract
A multi-component braze filler alloy comprising at least 70% by weight MarM509A superalloy with the remainder MarM509B superalloy is diffusion brazed to a CM247 alloy base substrate, such as a gas turbine blade or vane. It is shown that generally higher braze temperatures lead to improved results including the possibility of re-welding such a brazed component, resulting in a re-repaired brazed component capable of continued commercial service.
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