Micro-scale Compression of Ni-based Metallic Glass

Mechanical properties of Ni80P20 metallic ribbon fabricated by melt spinning was tested in micro-scale compression, 1 mu m pillars produced by Foused Ions Beam ( FIB) were characterized with nanoindentation. Stress-strain curve together with compressed pillar morphology analyses show that ribbon deformation mechanism may attribute to the shear transformation zones (STZs), which as preferential shear band nucleation sites to form shear bands. Quantitative micro-scale characterization of compression on stress-stain would be momentous significance.