Chromium-free corrosion-resistant coating for magnesium alloys

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Author: Ganesh Skandan
Date: Apr. 2013
From: Advanced Coatings & Surface Technology(Vol. 26, Issue 4)
Publisher: Frost & Sullivan
Document Type: Article
Length: 468 words
Lexile Measure: 1400L

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The corrosion of parts (such as automobiles parts) made from magnesium can be arrested by the application of surface protection methods such as, paints and coatings. By the application of corrosion inhibiting coatings the degradation of the magnesium parts can be diminished and the structural integrity and appearance of the coated magnesium part can be maintained. The conventional paints and coatings used for magnesium alloys contain hexavalent chromium also known as hex chrome or chromate. This chromate is carcinogenic in nature and is toxic for the environment. For over 75 years, the best performing and most reliable conversion coatings have been made with chromate. Chromate conversion coatings (CCCs) are self-healing and provide excellent adhesion with overlying paint....

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Gale Document Number: GALE|A338525538