Effect of Training on Two-way Shape Memory Effect and Its Stability in a Ti-Ni-Hf High Temperature S

• 作 者: K.T.LAU L.M.ZHOU
• 机 构: Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Horn, Kowloon, Hong
• 出 处: Journal of Materials Science & Technology
• 发表日期: 2003年06期
• 关键词: martensite cycling Training bending thermally subsequent ingot deformed train me

The Effect of the thermal cycling training under constant strain on the two-way shape memory effect (TWSME) in a Ti36lli49Hf15 high temperature shape memory alloy (SMA) has been investigated by bending tests. The results indicated that the training procedure is beneficial to get the better TWSME. The two-way shape memory strain increases with increasing the training strain. And it decreases with increasing the training temperature. The TWSME obtained in the present alloy shows poorer stability compared with that obtained in the TiNi alloys.

The Effect of the thermal cycling training under constant strain on the two-way shape memory effect (TWSME) in a Ti36l li49Hf15 high temperature shape memory alloy (SMA) has been investigated by bending tests. The results indicated that the training procedure is The two-way shape memory strain increases with increasing the training strain. And it decreases with increasing the training temperature. The TWSME obtained in the present alloy shows poorer stability compared with that obtained in the TiNi alloys.