**1.2.2.6 Effect of crystallization treatment on the surface morphology and corrosion resistance of Ti-O film**

The samples of TiNi SMA deposited at 20mA/cm2 for 7min and 5mA/cm2 for 4min respectively were crystallized at 450C, with an SZX-STAD2 type of OLYMPUS metallurgical microscope, the Ti-O films before and after depositing respectively were observed, and the effect of crystallization treatment on Ti-O film morphology was investigated.

The TiNi samples deposited at 5mA/cm2 for 4min before and after crystallizing respectively were taken into Hank's solution (PH7.45) and Fusayama solution (PH6.13) to test their corrosion potential and polarization curve, in order to investigate the effect of crystallization treatment on corrosion resistance of Ti-O film.
