Tribotechnical and mechanical properties of Ti-Al-N nanocomposite coatings deposited by the ion-plasma method |
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| Authors: | V. M. Beresnev A. D. Pogrebnyak P. V. Turbin S. N. Dub G. V. Kirik M. K. Kylyshkanov O. M. Shvets V. I. Gritsenko A. P. Shipilenko |
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| Affiliation: | 1.National Center for Physics and Technology, Ministry of Education of Ukraine,National Academy of Sciences of Ukraine,Kharkov,Ukraine;2.Sumy Institute for Surface Modification,Sumy,Ukraine;3.V. Bakul Institute for Superhard Materials,National Academy of Sciences of Ukraine,Kiev,Ukraine;4.UkrRosMetal Concern,Sumy,Ukraine;5.East Kazakhstan State Technical University,Ust-Kamenogorsk,Kazakhstan;6.National Science Center Kharkov Institute of Physics and Technology,National Academy of Sciences of Ukraine,Kharkov,Ukraine;7.V. N. Karazin Kharkov National University,Kharkov,Ukraine;8.Sumy State University,Sumy,Ukraine |
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| Abstract: | The possibility of formation of nanocrystalline Ti-Al-N coatings using the method of ion-plasma deposition is demonstrated. The mechanical and tribotechnical characteristics of the coatings in comparison with TiN coating are studied. Ti-Al-N nanocomposite coatings possess high hardness (35 GPa) and higher wear resistance and lower wear capacity as compared to TiN coating. For a grain size of 12–15 nm the nanostructural Ti-Al-N coating has the following elemental composition: Ti ≈ 60 at %, N ≈ 30 at %, Al ≈ 10 at %. The phase composition of the coating represents the solid solution (Ti, Al)N. For this elemental and phase composition and nanograin size maximal hardness and elasticity modulus of the coating are found. |
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