Each of these topics will be separately discussed. The effect of these various microstructural modifications on the SIM Sunitinib in the two alloys will also be identified.
3.1. β solution treatment conditions
Fig. 3. Microstructure in β solution treated condition (900 °C/5 min): (a) Ti–10V–2Cr–3Al, and (b) Ti–10V–1Fe–3Al.Figure optionsDownload full-size imageDownload as PowerPoint slide
Fig. 4. Stress–strain curves of alloys after β solution heat treatment: (a) Ti–10V–2Cr–3Al, and (b) Ti–10V–1Fe–3Al.Figure optionsDownload full-size imageDownload as PowerPoint slide
The TEM micrographs of Ti–10V–1Fe–3Al alloy after compression testing are shown in Fig. 5. The microstructure of stress-induced α″ martensite is illustrated. Fig. 5(a) is a dark field TEM micrograph. It can be seen that the formation of this stress-induced orthorhombic phase leads to a structure of nanoscale needles. Fig. 5(b) is a diffraction pattern along the β 〈1 1 3〉 zone axis, the spot corresponding to the α″ martensite is clearly visible. Xu and Marteleur  and  have found the similar microstructures in other titanium alloys.