2011, Volume 14, Issue 2
Shape Memory Behavior and One-Way Shape Memory Effect of a NiTi Shape Memory Bands
National Institute for Research and Development for Cryogenics and Isotopic Technologies - ICIT Rm. Valcea, Uzinei Street no. 4, P.O. Box Raureni 7, 240050, Ramnicu Valcea, Romania
To define the alloy’s shape, this is constrained under deformation and then heat treated. The one-way shape memory effect in a NiTi high temperature shape memory alloy has been systematically studied by bending tests. In the NiTi alloy, the martensite deformation is an effective method to get two-way shape memory effect even with a small deformation strain. Internal structure and shape memory behavior of NiTi bands heat-treated at 100 K, 200 K, and 300 K were investigated by Scanning Electron Microscopy (SEM) and X-ray fluorescence at room temperature. The NiTi shape memory bands were supplied by Memry Company, with following thickness: 0.05mm, 0.5mm, 1.25mm, 0.203mm. The results showed that the NiTi bands possess super-elastic properties, and the transformation temperature is 113°C; also, it has been noticed that the alloy has a higher content of titanium and exhibit shape memory effect.
Ni-Ti shape memory alloys, one-way shape memory effect, shape memory effect, martensite.
Tag search Ni-Ti shape memory alloys one-way shape memory effect shape memory effect martensite