Forging/Forming Simulation Studies on a Unique, High Capacity Deformation Simulator Apparatus

Ni-based bulk metallic glasses and composites with high absolute densities exceeding 11 g/cm3 were synthesized via spark plasma sintering of Ni45Co10Ta25Nb20 powders produced from pulverized, melt-spun amorphous ribbons. Optimizing the synthesis via selection of sintering temperature, uniaxial load pressure, and powder mechanical screening yielded samples with relative densities of nearly 100% and hardness values in excess of 12.5 GPa without cracking. Mechanical testing included Weibull modulus determination for hardness and compression testing at 10-3 s-1 and 103 s-1 strain rates. The capability of using spark plasma sintering to fabricate high hardness, high density, large scale metallic glasses is demonstrated. The mechanical properties of these compacted comminuted melt-spun glass ribbons are presented.

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Forging/Forming Simulation Studies on a Unique, High Capacity Deformation Simulator Apparatus

Cited by 4 publications

References 11 publications

Hot deformation flow behavior of powder metallurgy based Al-SiC and Al-Al2O3 composite in a single step and two-step uni-axial compression

Hot deformation flow behavior of powder metallurgy based Al-SiC and Al-Al2O3 composite in a single step and two-step uni-axial compression

Analysis of the Energy Vanished by Friction in Tube Drawing Processes with a Fixed Conical Inner Plug by the Upper Bound Method

Processing and Properties of Ni-Based Bulk Metallic Glass via Spark Plasma Sintering of Pulverized Amorphous Ribbons

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