SYSTEMS, FORMULATIONS, AND METHODS FOR REMOVAL OF DIFFUSION COATING FROM AIRFOILS
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United States of America Patent
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Issued Date -
Sep 15, 2022
app pub date -
Mar 12, 2021
filing date -
Mar 12, 2021
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Abstract
A method of removing an aluminide diffusion coating from a gas turbine engine component having a nickel alloy base material may comprise: disposing the gas turbine engine component in a solution, the solution including an acid between 5% and 15% vol./vol. and water between 85% and 95% vol./vol.; placing the gas turbine engine component in electrical contact with a graphite plate; and removing the aluminide diffusion coating from the gas turbine engine component in response to placing the gas turbine engine component in electrical contact with the graphite plate and disposing the gas turbine engine component in the solution.
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