Characterization of TiAlSi Coating Deposited by Arc-PVD Method on TiAlCrNb Intermetallic Base Alloy

G. Moskal; M. Góral; Lucjan Swadźba; B. Mendala; G. Jarczyk

doi:10.4028/www.scientific.net/DDF.237-240.1153

Paper Titles

Mechanisms of Diffusion and Dissociation of E-Centers in Silicon
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MD Simulation Study of B1-B2 Phase Transition of KCl under High Pressure: Effects of Defects
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Auger Electron Spectroscopical Investigation of Interfacial Segregation in the Cu-Bi System
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Phase Transformations in ε-/γ'-Iron Nitride Compound Layers in the Temperature Range of 613 K - 693 K
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Characterization of TiAlSi Coating Deposited by Arc-PVD Method on TiAlCrNb Intermetallic Base Alloy
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Refinement in the Mathematical and Numerical Treatment of the Internal Oxidation of Alloys
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In Situ Observation of Electromigration in Gold Nanowires
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HomeDefect and Diffusion ForumDefect and Diffusion Forum Vols. 237-240Characterization of TiAlSi Coating Deposited by...

Characterization of TiAlSi Coating Deposited by Arc-PVD Method on TiAlCrNb Intermetallic Base Alloy

Abstract:

Results of microstructural investigations of aluminide coatings modified by Si are presented in this work. Protective coating (TiAlSi type) was deposited by Arc-PVD. Thickness of the outside layer of deposited coating was 35µm and it contained TiAl3 phase modified by Si as a main component. The second layer was found as a transition area between the TiAl3 outside layer and the surface of TiAlCrNb substrate. Thickness of the inside sublayer was 5 µm. The diffusion treatment caused the progress of coating homogenisation from the point of view of phase and chemical composition. It was found that the coating consisted of the dominant TiAl3 phase and Ti5Si3 in thick outer sublayer and only TiAl2 phase in transition thin sublayer. Below the transition area, on the surface of TiAlCrNb substrate alloy, the layer of g−TiAl was found. The amount of silicides was increased in comparison with the coating only after the Arc-PVD process and the area of its presence had been removed in the outside direction of the coating.

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Periodical:

Defect and Diffusion Forum (Volumes 237-240)

Pages:

1153-1156

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.237-240.1153

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Online since:

April 2005

Authors:

G. Moskal, M. Góral, Lucjan Swadźba, B. Mendala, G. Jarczyk

Keywords:

Microstructure of Coatings, Protective Coating, Ti-Al Based Alloys, TiAlSi Coatings

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