In the present study Ti-Al compounds formation in cold spray aluminium coatings on titanium alloy substrates by annealing in argon atmosphere at temperature in the range from 830 to 1270 K was considered. Experimental and modeling results of intermetallic compounds synthesis in cold spray coatings were presented. Formation of TiAl_3 and Ti_3Al phases was obtained. Data of X-ray, microstructure and microhardness analysis was shown.
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