Microstructure and Corrosion Resistance of Aluminium and Copper Composite Coatings Deposited by LPCS Method

Microstructure and Corrosion Resistance of Aluminium and Copper Composite Coatings Deposited by LPCS Method

The paper presents the study of microstructure and corrosion resistance of composite coatings (Al+Al2O3 and Cu+Al2O3) deposited by Low Pressure Cold Spraying method (LPCS). The atmospheric corrosion resistance was examined by subjecting the samples to cyclic salt spray and Kesternich test chambers,...

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Bibliographic Details
Main Authors: Winnicki M., Rutkowska-Gorczyca M., Małachowska A., Piwowarczyk T., Ambroziak A.
Format: Article
Language:English
Published: Polish Academy of Sciences 2016-12-01
Series:Archives of Metallurgy and Materials
Subjects:
cold spraying
composite coatings
cyclic salt spray test
Kesternich test
Online Access:http://www.degruyter.com/view/j/amm.2016.61.issue-4/amm-2016-0313/amm-2016-0313.xml?format=INT
Description
Summary:The paper presents the study of microstructure and corrosion resistance of composite coatings (Al+Al2O3 and Cu+Al2O3) deposited by Low Pressure Cold Spraying method (LPCS). The atmospheric corrosion resistance was examined by subjecting the samples to cyclic salt spray and Kesternich test chambers, with NaCl and SO2 atmospheres, respectively. The selected tests allowed reflecting the actual working conditions of the coatings. The analysis showed very satisfactory results for copper coatings. After eighteen cycles, with a total time of 432 hours, the samples show little signs of corrosion. Due to their greater susceptibility to chloride ions, aluminium coatings have significant corrosion losses.
ISSN:2300-1909

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