ALUMINIUM ALLOY ANODE COMPOSITION

An alumunum alloy useful as a sacrificial galvanic anode in the cathodic protection of ferrous structures comprising a commercial grade of aluminum of 99.8-99.9 % Si, 0.02-0.1 % Fe, less than 150 ppm Cu and minor amounts of others, and an amount of added 0.01-0.06Wt. % In, 0.5-15.0 Wt. % Zn, and 0.0...

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Bibliographische Detailangaben
Hauptverfasser:	REDING JOHN THOMAS, RILEY ROBERT LEE JR
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL FERROUS OR NON-FERROUS ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	An alumunum alloy useful as a sacrificial galvanic anode in the cathodic protection of ferrous structures comprising a commercial grade of aluminum of 99.8-99.9 % Si, 0.02-0.1 % Fe, less than 150 ppm Cu and minor amounts of others, and an amount of added 0.01-0.06Wt. % In, 0.5-15.0 Wt. % Zn, and 0.03-0.4 Wt. % Si, the amount of added Si plus the maturally-occurring Si being at least 0.07 %.