I. S. Gertsel, A. A. Golyshev, “Control of structure-phase composition of titanium matrix composites in the process of direct laser growth”, Prikl. Mekh. Tekh. Fiz., 2025, Volume 66, Issue 3,Pages <nobr>103

Control of structure-phase composition of titanium matrix composites in the process of direct laser growth

I. S. Gertsel^ab, A. A. Golyshev^ab

^a Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk
^b Novosibirsk State University

Abstract: The possibility of controlling the structural-phase state of a VT6-B$_4$C titanium matrix composite during direct laser growth was investigated. A correlation was established between the laser processing regime and the microstructure of the composite: changes in energy parameters lead to variations in the concentration of secondary phases (TiB, TiB$_2$, TiC). Synchrotron radiation was used to obtain diffraction patterns, which were then employed to determine the phase composition of the composite materials. It was shown that employing a high-energy laser regime increases the microhardness of the material up to HV$_{0,3}$ = 750.

Keywords: VT6 alloy, boron carbide, additional substrate heating, microhardness, synchrotron radiation.

UDC: 620.186.5

Received: 05.06.2024
Revised: 30.08.2024
Accepted: 02.09.2024

DOI: 10.15372/PMTF202415543