Structure and Phase Composition of Wear-Resistant Coatings
of the TiB₂Al System Prepared by Electroexplosion Sputtering

D. A. Romanov^a,*, O. V. Olesyuk^a, E. A. Budovskikh^a,**, V. E. Gromov^a,***,
T. S. Sameishcheva^b,****, and P. S. Yartsev^b

^aSiberian State Industrial University, ul. Kirova 42, Novokuznetsk, 654007 Russia

^bNovosibirsk State Technical University, pr. K. Marksa, Novosibirsk, 630073 Russia

*e-mail: romanov_da@physics.sibsiu.ru

**e-mail: budovskikh_ea@physics.sibsiu.ru

***e-mail: gromov@physics.sibsiu.ru

****e-mail: bataev@adm.nstu.ru

Received January 24, 2013; in final form December 12, 2013; accepted for publication December 15, 2013

Abstract—The surface profile, structural features, and phase composition of coatings of the TiB₂–Al system,
which were fabricated by electroexplosion sputtering, are investigated by optical interferometry, scanning elec-
tron microscopy, and X-ray phase analysis. It is established that posttreatment surface roughness parameter R_a
= 2.0 m. The phase composition of formed layers includes Al, TiB₂, and TiBC₃. Coatings have a cohesion–
adhesion bond with the surface-contact material.

Keywords: electroexplosion sputtering, wear-resistant coatings, titanium diboride, roughness, microstructure,
phase composition

DOI: 10.3103/S1067821216010132

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