Chromate passivation of aluminium and copper

Mukherjee, A N and Rao, Addanki S and Banerjee, T and Lahiri, A K (1966) Chromate passivation of aluminium and copper. NML Technical Journal, 8 (4). pp. 22-27.

[img]PDF
Restricted to NML users only. Others may use ->

1907Kb

Abstract

The effect of various factors controlling protective film formation on aluminium and copper alloys by treatment in acid chromate solution has been described. Studies on aluminium in chromate fluoride type of bath have indicated that the weight of film formed changes in a way similar to that of zinc. The film formed was in general dependent on conditions of treatment. For copper and copper alloys, the film formed was in general strongly protective though its resistance against attack was dependent on conditions of treatment. For copper and copper alloys, the film formed in chromate/chromic acid bath was found to be more protective than in chromate/sulphuric acid/chloride bath. (Messrs S. Rao Addanki, Scientist, Marine Corrosion Research Station, NML, A.N. Mukherjee, Junior Scientific Assistant, Dr. A.K. Lahiri, Scientist, National Metallurgical Laboratory, Jamshedpur)

Item Type:Article
Official URL/DOI:http://library/articleDetails.jsp?recordid=158
Uncontrolled Keywords:Protective film-aluminium alloys; Protective film-copper alloys; Copper alloys
Divisions:Metal Extraction and Forming
ID Code:1829
Deposited By:Dr. A K Sahu
Deposited On:04 Oct 2010 14:17
Last Modified:17 Dec 2012 13:27
Related URLs:

Repository Staff Only: item control page