Electrolyte for electrochemical machining of gamma-gamma double" nickel-based superalloys

The present invention relates to an electrolyte for electrochemical machining of [gamma]-[gamma]" nickel-based superalloy comprising: NaNO3 in a content of 10 to 30% by weight relative to the total weight of the electrolyte; a complexing agent selected from sulfosalicylic acid with a pH of 3 to...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: RANCIC MICKAEL, MSAKNI MALOUCHE MARIEM, STEIN NICOLAS, BOULANGER CLOTILDE, LECOMTE JANVIER
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The present invention relates to an electrolyte for electrochemical machining of [gamma]-[gamma]" nickel-based superalloy comprising: NaNO3 in a content of 10 to 30% by weight relative to the total weight of the electrolyte; a complexing agent selected from sulfosalicylic acid with a pH of 3 to 10 and nitrilotriacetic acid with a pH of 7 to 14, the complexing agent being present in a content of 1 to 5% by weight relative to the total weight of the electrolyte; optionally, an anionic surfactant in a content of 1 to 5% by weight relative to the total weight of the electrolyte; optionally, NaOH in order to obtain the desired pH; and an aqueous solvent. The invention also relates to the use of the electrolyte and to a method for electrochemical machining of [gamma]-[gamma]" nickel-based superalloy as well as to a method for precision electrochemical machining of [gamma]-[gamma]" nickel-based superalloy using the electrolyte. 本发明涉及用于γ-γ"镍基超级合金的电化学加工的电解质,其包含:-相对于电解质的总重量,含量在10重量%至30重量%之间的NaNO3;-络合剂,其选自pH为3至10的磺基水杨酸,