Metallographic Sample Preparation Method of Commercial Pure Titanium TA1

The metallographic sample preparation method of commercial pure titanium TA1 was studied, and by comparing the polishing effect of mechanical polishing and electrolytic polishing, the optimal technological parameters of these two polishing methods were obtained. The results show that microstructure without deformation twin could be obtained through mechanical polishing adding chemical erosion for 4 times, or electrolytic polishing in perchlorate and glacial acetic acid with volume ratio of 6∶94 and electrolytic voltage of 60 V for 14 s. However, the efficiency of electrolytic polishing method was higher than that of the mechanical polishing method, and the obtained microstructure also showed better.