Electrolyte for electrochemical machining of γ-γ″ nickel-based superalloys

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United States of America Patent

PATENT NO 11712744
APP PUB NO 20210370426A1
SERIAL NO

17290945

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Abstract

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An electrolyte for the electrochemical machining of a γ-γ″ nickel-based superalloy, includes NaNO3 in a content of between 10% and 30% by weight relative to the total weight of the electrolyte; a complexing agent selected from sulfosalicylic acid at a pH of between 3 and 10 and nitrilotriacetic acid at a pH of between 7 and 14, the complexing agent being present in a content of between 1% and 5% by weight relative to the total weight of the electrolyte; optionally, an anionic surfactant in a content of between 1% and 5% by weight relative to the total weight of the electrolyte; optionally, NaOH in order to obtain the desired pH; and an aqueous solvent.

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Patent Owner(s)

Patent OwnerAddress
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE75016 PARIS
UNIVERSITE DE LORRAINE54000 NANCY
SAFRAN AIRCRAFT ENGINES75015 PARIS

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Boulanger, Clotilde Coin les Cuvry, FR 5 8
Lecomte, Janvier Moissy-Cramayel, FR 6 7
Msakni, Malouche Mariem Moissy-Cramayel, FR 2 0
Rancic, Mickael Moissy-Cramayel, FR 6 5
Stein, Nicolas Metz, FR 3 0

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