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The Corrosion Behaviour of Mg Alloy AZ91D/TiCp Metal Matrix Composite

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Abstract:

The corrosion of a magnesium-based MMC, comprising a AZ91D alloy matrix and 5 vol% titanium carbide particles has been studied in saline environments, using immersion and electrochemical tests. Corrosion was localized initially and developed subsequently into general corrosion , the local corrosion rate of AZ91D/TiCp being faster than diecast AZ91D due to the formation of less protective corrosion products. Galvanic corrosion for AZ91D/TiCp, due to coupling of the matrix and reinforcement, was more severe than diecast AZ91D.

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Periodical:

Materials Science Forum (Volumes 488-489)

Pages:

705-708

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.488-489.705

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Online since:

July 2005

Authors:

Suqiu Jia, Shu Sheng Jia, Guangping Sun, Jun Yao

Keywords:

Corrosion, Magnesium Alloy, Microstructure, TiC

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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