Quasi-Static And High Strain Rate Response Of Two-Layered Structures Of Titanium Based Composites Reinforced With TiC And TiB Particles

Authors:

Pavlo Markovsky (G.V. Kurdyumov Institute for Metal Physics of N.A.S. of Ukraine, Ukraine),
Jacek Janiszewski (Jarosław Dąbrowski Military University of Technology, Poland),
Vadim Bondarchuk (G.V. Kurdyumov Institute for Metal Physics of N.A.S. of Ukraine, Ukraine),
Dmytro Savvakin (G.V. Kurdyumov Institute for Metal Physics of N.A.S. of Ukraine, Ukraine),
Kamil Cieplak (Jarosław Dąbrowski Military University of Technology, Poland),
Sergey Prikhodko (University California Los Angeles, USA),
Orest Ivasishin (G.V. Kurdyumov Institute for Metal Physics of N.A.S. of Ukraine, Ukraine)

Abstract:

The two-layered structures consisting of the top layer of metal matrix composites (MMC) on the base of titanium alloy Ti-6Al-4V (Ti-64) reinforced with 5, and 10 % (vol.) of TiC or TiB particles and the base layer made of the alloy Ti-64 were prepared employing press-and-sinter Blended Elemental Powder Metallurgy (BEPM) approach. The mechanical behavior of these structures was studied under quasi-static and high strain rate compression loading. Dynamic tests (820÷2880 s-1) were implemented using the split Hopkinson pressure bar technique, whereas the quasi-static tests were performed at the strain rate of 10-3 s-1. The stress-shortening curves were analyzed and the effects of phase composition, microstructure, strain rate, as well as deformation energy were evaluated. The deformation mechanism was assessed basing on a detailed analysis of tested specimens’ microstructure. The results are compared with those earlier obtained for uniform MMC tested at the same conditions.

DOI:

https://doi.org/10.59499/WP225367648