Centre National De La Recherche Scientifique

Safran Aircraft Engines

Universite Dé Lorraine

Nicolas Stein

Janvier Lecomte

Mickael Rancic

Clotilde Boulanger

Mariem Msakni Malouche

An electrolyte for the electrochemical machining of a &#x3b3;-&#x3b3;&#x2033; 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.

Electrolyte for electrochemical machining of &#x3b3;-&#x3b3;&#x2033; nickel-based superalloys

An electrolyte for electrochemical machining of a &#x3b3;-&#x3b3;' nickel-based superalloy includes NaNOat a content of between 10 and 50% by weight relative to the total weight of the electrolyte; an additive chosen from KBr, NaBr, KI, NaI and mixtures thereof, in an additive/NaNOmolar ratio of between 1 and 15; optionally an ethylenediaminetetraacetic acid-based complexing agent at a content of between 1 and 5% by weight relative to the total weight of the electrolyte at a pH of between 6 and 12; optionally an anionic surfactant at a content of between 1 and 5% by weight relative to the total weight of the electrolyte; optionally NaOH to obtain the appropriate pH; and an aqueous solvent.

Electrolyte for electrochemical machining of gamma-gamma prime nickel-based superalloys

Growing community of inventors

Metz, France

Nicolas Stein