Preparation and Corrosion Resistance of Cold Sprayed Al - based Composite Coating

Aluminum alloy is widely used for its light weight characteristic and excellent corrosion resistance. Cold spraying technology is one effective method to fabricate the Al anti - corrosive coatings owing to its high speed and low temperature deposition characterization. In this work, the aluminum pow...

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Bibliographic Details
Published inCai liao bao hu Vol. 55; no. 1; pp. 44 - 49
Main Author CHEN Qin, YU Min, GE Jie - jie, CHEN Hui
Format Journal Article
LanguageChinese
Published Editorial Department of Materials Protection 01.01.2022
Subjects
cold spraying|ceramic phase|al - based composite coating|corrosion resistance
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Summary:Aluminum alloy is widely used for its light weight characteristic and excellent corrosion resistance. Cold spraying technology is one effective method to fabricate the Al anti - corrosive coatings owing to its high speed and low temperature deposition characterization. In this work, the aluminum powder was mixed with ceramic phase powder to prepare the composite powder by mechanical mixing, and Al5056/Al5056 - Al2O3/Al5056 - SiC/Al5056 - WC coatings were prepared by cold spraying on the Al1060 substrate. The porosity and content of the ceramic phase in the coating were studied through Image - Pro Plus software, and microhardness testing was carried out on the composite coatings. Meanwhile, the effects of ceramic types on the electrochemical properties of composite coatings were studied, and the corrosion resistance of the coating was analyzed in combination with the corrosion morphology. Results showed that the ceramic phase could be effectively deposited, but the self aggregation of ceramic particles during
ISSN:1001-1560
DOI:10.16577/j.issn.1001-1560.2022.0005