Composite Layers TiAl_{Intermetallic}/PVD Coating Obtained by Hybrid Surface Treatment Technology on Aluminium Alloys

Abstract:

The paper presents the results of tests on an “intermetallic layer TiAl / coating AlCrTiN" hybrid layer, which was obtained using a hybrid method combining magnetron Sputtering, diffusion, and arc evaporation in a single technological process. The hybrid layer obtained was subjected to studies on morphology and chemical composition using the TM3000 scanning electron microscope. Additionally, hardness and Young's modulus as a function of distance from the surface were measured using a nanohardness tester CSM. Based on the analysis of the results obtained, the authors suggest the mechanism of layer growth in the technological process. The composite layer was also subjected to wear resistance using the ball-cratering method and erosion resistance tests using the glass powder. The obtained results showed that the Ti-Al _{intermetallic} / AlCrTiN hybrid layer significantly increases resistance to abrasion as well as erosion wear resistance of the Ak12 alloy.

• Periodical: Solid State Phenomena (Volume 237)
• Pages: 34-40
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.237.34
• Online since: August 2015
• Authors: Jerzy Smolik*, Adam Mazurkiewicz, Joanna Kacprzyńska-Gołacka, Michał Rydzewski
• Keywords: Hybrid Layers, Non-Ferrous Alloys, Surface Engineering

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