Microstructure and Corrosion Resistance of Aluminium and Copper Composite Coatings Deposited by LPCS Method
Winnicki M., Rutkowska-Gorczyca M., Małachowska A. and 2 more
Archives of Metallurgy and Materials · 2016
doi:10.1515/amm-2016-0313 (opens in a new tab)
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Abstract
The paper presents the study of microstructure and corrosion resistance of composite coatings (Al+Al 2 O 3 and Cu+Al 2 O 3 ) 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 SO 2 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.
Abstract licence: CC BY-NC-ND
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