Structural and Mechanical Properties of Ti–Co Alloys Treated by High Pressure Torsion
AbstractThe microstructure and properties of titanium-based alloys can be tailored using severe plastic deformation. The structure and microhardness of Ti–4 wt.% Co alloy have been studied after preliminary annealing and following high pressure torsion (HPT). The Ti–4 wt.% Co alloy has been annealed at 400, 500, and 600 °C, i.e., below the temperature of eutectoid transformation in the Ti–4 wt.% Co system. The amount of Co dissolved in α-Ti increased with increasing annealing temperature. HPT led to the transformation of α-Ti in ω-Ti. After HPT, the amount of ω-phase in the sample annealed at 400 °C was about 8085%, i.e., higher than in pure titanium (about 40%). However, with increasing temperature of pre-annealing, the portion of ω-phase decreased (60–65% at 500 °C and about 5% at 600 °C). The microhardness of all investigated samples increased with increasing temperature of pre-annealing. View Full-Text
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Straumal, B.B.; Korneva, A.; Kilmametov, A.R.; Lityńska-Dobrzyńska, L.; Gornakova, A.S.; Chulist, R.; Karpov, M.I.; Zięba, P. Structural and Mechanical Properties of Ti–Co Alloys Treated by High Pressure Torsion. Materials 2019, 12, 426.
Straumal BB, Korneva A, Kilmametov AR, Lityńska-Dobrzyńska L, Gornakova AS, Chulist R, Karpov MI, Zięba P. Structural and Mechanical Properties of Ti–Co Alloys Treated by High Pressure Torsion. Materials. 2019; 12(3):426.Chicago/Turabian Style
Straumal, Boris B.; Korneva, Anna; Kilmametov, Askar R.; Lityńska-Dobrzyńska, Lidia; Gornakova, Alena S.; Chulist, Robert; Karpov, Mikhail I.; Zięba, Paweł. 2019. "Structural and Mechanical Properties of Ti–Co Alloys Treated by High Pressure Torsion." Materials 12, no. 3: 426.
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