INVESTIGATION OF Zr-ZrN, Zr,Hf-(Zr,Hf)N AND Zr,Nb-(Zr,Nb)N COATINGS DEPOSITED ON A TITANIUM ALLOY SUBSTRATE
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Published:2024
Issue:2
Volume:28
Page:65-80
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ISSN:1093-3611
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Container-title:High Temperature Material Processes An International Quarterly of High-Technology Plasma Processes
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language:en
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Short-container-title:High Temp Mat Proc
Author:
Vereschaka Alexey,Sotova Catherine,Milovich Filipp,Bublikov Jury,Zhylinski Valery,Makarevich Kirill,Baranova Natalia
Abstract
The properties of Zr-ZrN, Zr,Hf-(Zr,Hf)N and Zr,Nb-(Zr,Nb)N coatings deposited on a Ti6Al-4V titanium alloy substrate were studied. It has been established that the introduction of hafnium increases, and niobium reduces the hardness of the coating. The introduction of hafnium also increases, and niobium reduces, the value of the critical fracture load L<sub>C2</sub> in the scratch test. It has been established that a layer of nanocrystallites can form at the interface between the substrate and the coating. This layer is presumably formed by particles of an oxide film destroyed during ion etching, spontaneously formed on the surface of the titanium alloy. All samples with coatings have noticeably lower values of the adhesive component of the friction coefficient f<sub>adh</sub> compared to the uncoated sample at all temperatures. At room temperature, the Zr-ZrN-coated sample has the best f<sub>adh</sub> value, but when the temperature rises to 500°C and above, the Zr,Hf-(Zr,Hf)N-coated sample has an obvious advantage.
Subject
Physical and Theoretical Chemistry,Spectroscopy,General Engineering,Energy Engineering and Power Technology,Condensed Matter Physics,General Materials Science
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