|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Advances in Titanium Technology
||Strengthening of Ti-6Al-4V/TiC Composites
||Pavlo Markovsky, Dmytro Savvakin, Olexandr Stasyuk, Matthew Mecklenburg, Vianey Ellison, Sergey Prikhodko
|On-Site Speaker (Planned)
Titanium alloys reinforced with additional phase and fabricated using powder metallurgy attract significant attention due to the simplicity of intentional hardness increase and exceptional wear resistance. In this study the metal-matrix composites of Ti-6Al-4V alloy reinforced with TiC (up to 80%, vol.) were fabricated via blended elemental powder metallurgy using hydrogenated Ti as the base of powder blends. Post-sintering solution treatment at 880 and 1000 °C followed by the water quenching and aging at 550 °C were employed to modify the microstructure and properties of metallic matrix. For the duration of thermal exposure throughout the sintering followed by solution treatment and subsequent aging the matrix and reinforcement phase underwent distinct structural changes that significantly increase the hardness of composites. It was shown that the combined effect from the additional phase reinforcement and the applied treatment of fabricated materials can increase their hardness in two times compared to as-sintered alloy.
||Titanium, Composites, Powder Materials