Effects of microstructure on the mechanical properties of a high-strength Ti20Zr6.5Al4V alloy

Novel Anisotropic Ductility of a High Strength Annealed Ti-20Zr-6.5Al-4V Alloy

“…These results are consistent with those of the fracture surface analysis. In our previous study of 20Zr alloy, we observed no twins in the annealed sample following tensile test [ 13 ]. As such, slip can be considered to be the dominant deformation mode in the tensile test.…”

“…In addition, some α laths with a similar orientation were distributed along the cracks. The process of determining α laths has been described in previous work [ 13 ]. The α laths on the fracture surface can be determined by comparing the size and morphology.…”

“…The preparation process of the 20Zr alloy used in this study has been presented in elsewhere [ 13 ]. The alloy sheet used in the experiment was cut lengthwise from a long round bar.…”

“…In practice, the anisotropy of mechanical properties must be considered when designing and building structural components. Previously, researchers have conducted a series of studies on the 20Zr alloy [ 10 , 11 , 12 , 13 , 14 ]. However, as yet, no study has focused on the anisotropy of the mechanical properties of 20Zr alloy.…”

“…Most studies of the anisotropy of mechanical properties select the rolled or extruded state as the study object because it typically reveals the obvious anisotropy of mechanical properties [ 15 , 16 ]. However, in this study, we selected 20Zr alloy annealed at 750 °C for 2 h to investigate the anisotropy of the mechanical properties because it exhibits a balance of high strength and ductility [ 13 ]. This alloy is in a dual (α + β) phase in this condition.…”