Structure, properties and phase composition of composite materials based on the system NiTi-TiB2

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Structure, properties and phase composition of composite materials based on the system NiTi-TiB2	2 MB	Adobe Acrobat PDF	Read	Download
DOI Доступ к ресурсу на сайте издателя			10.3390/ma15155327

Title: Structure, properties and phase composition of composite materials based on the system NiTi-TiB2
Creator: Promakhov, Vladimir V.
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Matveev, Alexey E.
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Schulz, Nikita
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Dronov, Philip
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Zhukov, Alexander S.
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Vorozhtsov, Alexander B.
Date: 2022
DOI: 10.3390/ma15155327
Description: This article considers issues pertinent to the research of the phase composition, structure and mechanical properties of materials obtained from powders of composite (Ni-Ti)-TiB2, which have prospective applications in aerospace and automotive industry and engine construction. The starting powder materials (Ni-Ti)-TiB2 were obtained by self-propagating high-temperature synthesis (SHS). Research samples were produced using high-temperature vacuum sintering. It was shown that the use of such materials increases the wettability of the particles and allows the production of composites, the density of which is 95% of the theoretical one. Average particle size was 1.54 µm, average microhardness was 8 GPa, which is an order of magnitude higher than the average microhardness of pure nickel-based and titanium-based alloys, and the ultimate strength values were comparable to those of tungsten-based heavy alloys.