Correlation Between the Mechanical Properties and Deformation Microstructure of Ni Films

摘要

The evolution of texture and mechanical properties of electrodeposited nickel films under tensile deformation has been investigated under different elongations. Analysis of the surface morphology, the deformation texture and the mechanical properties using scanning electron microscopy (SEM), the X-ray diffraction (XRD) and nano-indentation has been conducted, revealing that there were only two main texture components Ni (111) and Ni (200) in the nickel film during the elongation. With increase of the tensile strain, the surface becomes rougher with generation of microcracks. The hardness (from 9.36 GPa to 6.13 GPa) and the Young's modulus (from 242.51 GPa to 116.23 GPa) decrease with the attenuation of the Ni (111) textures while the value of creep increases with the strain.