Effects of a Nanocrystalline Powders Additions on the Characteristics of Combustion Process, Phase- and Structure-Formation, and Properties of SHS Alloys on Titanium Carbide Base

A study was made of the effect of different nanocrystalline powders additives on the macrokinetics of combusting Ti-Cr-C-Ni mixtures as well as on the composition, structure, and physical-mechanical properties of SHIM-SB alloy produced by the power SHS-compaction technique. An additive of nanocrystalline powder is found to result in 2- to 5-fold modification of alloy structure and, in most cases, in improving physical and mechanical properties (bending strength, hardness, microhardness, and crack growth resistance).