Robert J. Dowding

TL;DR: In this article, the nanocrystalline tungsten (nc-W) was obtained by high-pressure torsion (HPT) at low temperature (500°C) by transmission electron microscopy (TEM).

TL;DR: In this article, the quasi-static and dynamic mechanical behavior of ultra-fine grained (UFG) tungsten (W) under uniaxial compression was investigated.

TL;DR: In this article, the authors addressed specific densification issues related to the nanocrystalline nature of the consolidating particulates. But, they focused on processes that have demonstrated the capability to form dense specimens with retention of fine grain sizes, and the experimental aspects cover powder compressibility and differential shrinkage, heating rate and pressure effects.

TL;DR: In this article, the compressive response of bulk amorphous Zr-Ti-Cu-Ni-Be alloy, also called as Vitreloy-1, was investigated at quasistatic and high strain rates in the range of 10−3 and 103 s−1, respectively.

TL;DR: In this paper, the authors demonstrated shear localization in bulk tungsten (W) of commercial purity under dynamic uniaxial compression and showed that ultrafine microstructure achieved in bcc materials leads to elevated strength and ductility, as well as reduced strain hardening and strain rate hardening.