Characterization of the α Phase Nucleation in a Two-Phase Metastable β Titanium Alloy

Effect of the addition of Ta on microstructure and properties of Ti–Nb alloys

“…During the decomposition of the ␤ phase, in processes that occur out of equilibrium, metastable phases can be formed such as ␣ (hexagonal), ␣ (orthorhombic) and (hexagonal); ␣ and ␣ are martensitic phases and can be formed either by nucleation and growth during aging or plane collapse of the bcc structure along the [1 1 1] direction upon quenching [13][14][15]. phase precipitation has not been observed in Ti-Ta quenched alloys despite attempts to identify it [16,17].…”

The Effect of Microstructure on Corrosion of Molybdenum-Bearing Titanium Alloys in High Chloride and Acidic Solution at High Temperature

“…The phase was also present as a continuous film growing towards grain boundaries. Lenain et al and Gil et al 13,14) showed that a larger phase grain leads to a smaller width of plates. Our results are in agreement with those of their study, as shown in Fig.…”

“…11,12) In these papers it was found that Ti-15Mo alloy was able to have high resistance against the crevice corrosion in sea water at 100 C. Moreover, -phase type Ti alloy is an attractive alloy because it has high specific strength with excellent strength and high cold deformability. 13) It was found that by using Mo instead of rare metals, the corrosion resistance of Ti alloy could be increased. However, there have been no reports on the effect of microstructure on the corrosion of Ti-Mo alloys.…”

Study of texture evolution in metastable β-Ti alloy as a function of strain path and its effect on α transformation texture

“…The effect of various mechanical, thermal and thermomechanical treatment on variant selection in (␣ + ␤) as well as metastable ␤ alloys has been studied extensively in literature [4][5][6][7][8][9][10][11][12][13][14][15][16][17]. It is found that prior deformation of ␤ phase leads to variant selection on aging, however, the role of strain path in term of different type of rolling and that of recrystallization after rolling that alters the defect structure has not yet being investigated.…”

“…A number of comprehensive studies have been carried out on the evolution of texture during hot deformation or heat treatment in ␤ phase of (␣ + ␤) [4][5][6][7][8][9][10][11][12][13] or (␣ 2 + ␤) [14][15][16][17][18] titanium alloys and the evolution of corresponding ␣ transformation texture. However, in (␣ + ␤) Ti alloy, the high temperature ␤ phase cannot be retained at room temperature; therefore, the experimental techniques are not free from limitations.…”