Molecular Dynamics Study On Shape Memory Effect Of Niti Alloys With Different Structures

Three NiTi alloys with different structures, singlecrystal, polycrystal and solid solution, have established by molecular dynamics method. The shape memory effect of NiTi alloys have studied under the same loading-unloading conditions. The essence of shape memory process has discussed. The influence of atomic structure, grain boundary and atomic equilibrium position has studied, which provided a new idea for the mechanical test of piezoelectric materials in the application process.