Application of PVD and ALD Methods for Surface Treatment of Al-Si-Cu Alloys

Abstract:

The article presents the results of research on tribological properties and corrosion resistance of hybrid and individual coatings embedded with the ALD (Atomic Layer Deposition) and PVD (Physical Vapour Deposition) technique on aluminum alloy substrates. Al-Si-Cu alloys coated with hybrid ALD+PVD coatings show significantly higher abrasion resistance compared to uncoated samples. In particular, the TiO₂+WC hybrid coating has the highest abrasion resistance. The highest resistance to corrosion is demonstrated by the sample with the TiO₂ type ALD coating. As a result of coating, the surface roughness of the tested samples increases, which is related to the occurrence of morphological heterogeneity in the form of solidified drops.The innovative approach of combining several technologies, while simultaneously selecting proper materials and parameters can significantly affect the future and functionality of products obtained. The technique of combining the hybrid coating technology still requires a lot of researches, the results of which can change the meaning and use of new innovative products. Keyword: PVD, ALD, hybrid coatings, TEM, corrosion resistance,

• Periodical: Solid State Phenomena (Volume 293)
• Pages: 97-109
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.293.97
• Online since: July 2019
• Authors: M. Staszuk*
• Keywords: ALD, Corrosion Resistance, Hybrid Coatings, PVD, TEM

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