What does this research mean for the field?

The addition of TiB2 to TiC-reinforced high-alloy steel matrix composites produced by self-propagating high-temperature synthesis significantly increases their microhardness, elastic modulus, and elastic recovery. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This study aims to understand how the addition of TiB2 affects the structure and mechanical properties of titanium carbide-based composites.

May 19, 2026

Influence of TiB2 on Structure and Mechanical Properties of Titanium Carbide Based Metal Ceramic Composites Obtained by Free SHS Compression

Puntos clave

This study aims to understand how the addition of TiB2 affects the structure and mechanical properties of titanium carbide-based composites.
Composite samples were synthesized using self-propagating high-temperature synthesis (SHS) and unconstrained pressing.
The matrix used was high-alloy steel PKh18N15M at 50 and 60 wt % alongside TiC and TiC + TiB2 as additives.
The composition aimed for 5 wt % TiB2 in the final product.
Composites reinforced with TiC showed microhardness of 14.4 GPa, elastic modulus of 379 GPa, and elastic recovery of 32.8%.
For composites with TiC + TiB2, microhardness reached 17.7 GPa, elastic modulus was 478 GPa, and elastic recovery was 35.6%.

Resumen

The structure and physicomechanical properties of composites with a matrix of high-alloy steel PKh18N15M at 50 and 60 wt % and reinforcing additives TiC and TiC + TiB2 were investigated. The composites were produced by self-propagating high-temperature synthesis (SHS) followed by unconstrained pressing. The amounts of titanium and boron added to the starting charge were chosen to yield 5 wt % TiB2 in the final composite. For composites reinforced with TiC, the maximum values were: microhardness 14.4 GPa, elastic modulus 379 GPa, and elastic recovery 32.8%; for composites reinforced with TiC + TiB2, the corresponding values were 17.7 GPa, 478 GPa, and 35.6%.

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