Deformation behavior and microstructure evolution of NiTiCu shape memory alloy (SMA), which possesses martensite phase at room temperature, were investigated based on a uniaxial compression test at the temperatures of 700~1000 ◦C and at the strain rates of 0.0005~0.5 s−1. The constitutive equation of NiTiCu SMA was established in order to describe the flow characteristic of NiTiCu SMA, which is...

Functionally graded and composite materials are known as new materials, which exhibit higher performances provide a comprehensive application. This paper introduces bi-layer Ni-rich/NiTiCu alloy with structure comprising nano-crystal, glassy amorphous microstructure. The successive crystallization of thin films deposited at room temperature was studied by annealing 773 K for 15, 30, 60 min. Dif...

In the actuation field, the most common shape memory alloy is quasi-equiatomic NiTi system, commercially known as Nitinol®. Ti-rich NiTi compounds show characteristic transformation temperatures higher than the room one and they can recover high values of deformation. Moreover, these intermetallic compounds are widely used since they exhibit high thermal and mechanical cycling stability. Other ...