The use of self-propagating high-temperature synthesis and argon-arc overlaying when strengthening the surface of products made of titanium alloys |
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Authors: | V L Kvanin N T Balikhina A G Merzhanov V G Karabakhin |
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Affiliation: | 1.Institute of Structural Macrokinetics and Material Sciences,Russian Academy of Sciences,Chernogolovka, Moscow oblast,Russia;2.OAO Kaluga Turbine Plant,Kaluga,Russia |
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Abstract: | A new method for the deposition of protective coatings (wear-resistant overlaying) that are 2 to 10 mm thick and more on the
surface of titanium articles is suggested, developed, approved, and patented. The method, called “SHS-arc overlaying,” combines
the exothermic synthesis of adding material (AM) and argon-arc overlaying, which proceed simultaneously with the deposition
of the coating. AMs made of exothermic mixtures are developed. Using this new method, protective composite coatings for titanium
articles are obtained. The physicochemical, microstructural, and exploitation properties of the overlaying are investigated.
Its operational characteristics exceed the characteristics of standard samples by a factor of 1.5–2.0. This new technology
can be recommended for the deposition of protective coatings on products of wide indentation made of titanium alloys. |
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