Publication at Faculty of Mathematics and Physics |
2016
Abstract
The effect of Zr on the mechanical and structural properties of a titanium alloy is studied in this paper. Binary Ti-35Nb alloy has been alloyed with various amounts of Zr ( 2, 4, 6 or 8 wt%).The specimens were thermo-mechanically processed (hot forged, solution treated 850oC/0.5 h/waterquenched, cold swaged and finally aged (at 400 oC or 450 oC for various periods).
Cold-swaged alloys possess tensile strength of about 800MPa, alongwith a low Young's modulus (50 GPa). The elongation of all the alloys is more than 12%.
The hardness increased during 400 oC annealing up to 370 HV10.The addition of Zr stabilized the β-phase and supports recrystallization and recovery processes. Corrosion resistance was also increased by the addition of Zr.