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Erosion of Vacuum-Arc Ti–N Coatings

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Abstract

We studied the fracture of vacuum-arc Ti–N coatings, produced under a nitrogen pressure (P TiN) from 1 to 103 mPa, after their bombardment with polyenergetic deuterium ions and the action of cavitation in tap water on them without ion irradiation. We showed that, in the case of action of cavitation on nonirradiated specimens of the coatings, their erosion rate can be evaluated from the relation V c = C/(W 0.75 H 0.5). It was established that, after ion bombardment, the erosion rate under conditions of cavitation decreases by a factor of 1.5 for coatings where P TiN > 100 mPa and increases by more than 30 times for P TiN < 20 mPa as compared with nonirradiated specimens. The results obtained were analyzed using the phase diagram of the titanium-nitrogen system.

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  1. National Scientific Center “Kharkov Physicotechnical Institute,”, Kharkov

    V. H. Marynin

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  1. V. H. Marynin
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Marynin, V.H. Erosion of Vacuum-Arc Ti–N Coatings. Materials Science 39, 447–451 (2003). https://doi.org/10.1023/B:MASC.0000010751.88570.c2

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  • DOI: https://doi.org/10.1023/B:MASC.0000010751.88570.c2

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