The results of laboratory and development wear tests of Al-based composite materials reinforced with TiC or SiC particles under dry sliding friction conditions are presented. It is shown that composite materials reinforced with TiC have better tribotechnical properties (friction coefficient, wear rate, wear coefficient, stability coefficient) as well as wear resistance. On the basis of the friction surface and wear debris investigations, the mechanisms of wear of the composite materials are determined.

A method for production of Sn–Sb–Cu alloy (babbitt) based composite coatings reinforced with micron-sized SiC and B4C particles on a steel substrate has been developed. A combined action of...

The addition of nanodispersed powders to the area of welded joint is a promising control mechanism of controlling the properties of the weld metal. This article is aimed at determining the influence of TiN, TiCN, and WC nanoparticles (<100 nm) on the structure and the properties of the welded joint.

Aluminum alloys, the composition of which is close to the matrix alloy of a composite antifriction materials, are deposited onto a steel substrate with a 10-μm-thick zinc coating. An aluminum coating...

The structure and tribological behavior of composite materials (CM) based on the AO20-1 alloy produced by casting method by mixing particles of the Ti₂NbAl intermetallic compound into the melt were studied. Tribological tests of the samples were carried out under conditions of dry sliding friction according to the axial loading scheme of a rotating disk sample using a fixed sleeve made of steel 45X (HRC > 63) as a counterface. It has been established that, as a result of a decrease in Al grain size during the rapid crystallization of the matrix alloy and the introduction of a discrete powder of an intermetallic compound into the alloy, the friction coefficient of the CM decreases by half. The wear resistance of CM increases by 2.5 times, which is associated with the influence of particles of solid intermetallic metal, limiting plastic deformation and entrainment of the matrix material.