Effect of Cooling Rate, Tungsten Fiber Addition and Annealing on Deformation and Mechanical Properties of Zr-Based Bulk Metallic Glasses Under a Nanoindenter

Yi Si

doi:10.4028/www.scientific.net/AMR.1120-1121.68

Paper Titles

Preliminary Structure Characterization of UV Curing Paint Film
p.49

Novel Ordered Layered Double Hydroxides Ultra Thin Films Functionalized with Dawson-Type Polyoxometalates: Synthesis, Characterization and Photocatalytic Behavior under Visible Light
p.53

Effect of the Iron Ion Doping in LaCoO₃ Perovskite, Both in Powders and in Sintered Samples Obtained from Combustion Reaction and Solid State Route
p.58

Improving the Surface Wettability of Parylene C Film by Hyperthermal Hydrogen Induced Cross-Linking Technology
p.64

Effect of Cooling Rate, Tungsten Fiber Addition and Annealing on Deformation and Mechanical Properties of Zr-Based Bulk Metallic Glasses Under a Nanoindenter
p.68

Effect of Ce Substitution on Mechanical and Thermal Properties of Tetragonal YSZ: First-Principles Calculations
p.73

Effect of Sc, Y, Yb, Hf, Ce on Mechanical and Thermal Properties of La₂Zr₂O₇: First-Principles Calculations
p.85

Piezoelectric and Ferroelectric Properties of KNN-LS-BF_1-_xC_x Ceramics
p.94

Investigation of Preparation and Thermoelectric Properties of Ca_2.5La_0.5Co₄O₉ Porous Ceramics
p.98

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1120-1121Effect of Cooling Rate, Tungsten Fiber Addition...

Effect of Cooling Rate, Tungsten Fiber Addition and Annealing on Deformation and Mechanical Properties of Zr-Based Bulk Metallic Glasses Under a Nanoindenter

Abstract:

The deformation and mechanical properties of Zr-based bulk metallic glasses (BMGs) under a nanoindenter and the effect of cooling rate, the effect of cooling rate, tungsten fiber addition and annealing on them have been studied by means of a nanoindentation instrument and a scanning electron microscope (SEM). The results indicate that the deformation of Zr-based BMGs under a nanoindenter is characterized by multiple shear bands and viscous flow which confirms the existence of a amount of plastic deformation. For pure quenched Zr-based BMGs, the larger the size of samples or the nearer the location away from the surface of a same sample, the smaller the values of microhardness (Hv) and elastic modulus (E); Annealing and tungsten fiber addition enhance the values of Hv and E; meanwhile, they also significantly change morphology around a nanoindenter and the amount of plastic deformation. The mechanism of plastic deformation is preliminarily analyzed.