Abstract
Binary borides Ti3SiB2, Ti3AlB2, Ti2AlB were prepared by SHS method upon variation in green composition and characterized by XRD, SEM, and EDAX. Boron was introduced into starting powder mixture in two ways: either (1) in the form of elemental boron or (2) as titanium boride. SHS in the Ti–Si–B system yielded TiB, TiB2, and Ti5Si3 while in the Ti–Al–B system, TiB, TiB2, and AlTi3. Prospects for using SHS-produced Ti–Si–B composites for deposition of wear-resistant coatings by electron-beam melting were explored. Wear resistance of boron-containing coatings was found to be higher than those based on MAX-phases Ti–Si–C and Ti–Al–C by a factor of 1.5–2.0.
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