Woon Hyung Baek

TL;DR: The mechanical properties of solid-state sintered 93W•5.6Ni•1.4Fe tungsten heavy alloys fabricated by mechanical alloying were investigated in this paper.

TL;DR: In this paper, the mechanical alloying process of 93W-5.6Ni-1.4Fe tungsten heavy alloy from the elemental powders of W, Ni and Fe by a high energy ball mill in argon atmosphere was investigated.

TL;DR: The microstructures of adiabatic shear bands formed by high-speed impact in a tungsten heavy alloy penetrator were investigated in this paper, where it was suggested from the microstructural observation of the shear band that in order to improve the penetration performance of the tungstein heavy alloy, the minimization of the Tungsten-tungsten particle interfaces and the optimization of the fabricating process were required.

TL;DR: In this paper, a fabrication process for a tungsten heavy alloy with matrix pools was suggested in order to increase the susceptibility to localized shear deformation, and a partial mechanical alloying process was introduced to form matrix pools intentionally within a tengsten heavy Alloy.

TL;DR: In this paper, the influence of Mn addition on the growth kinetics and morphology of W grains in W-Ni-Fe heavy alloy has been studied by placing a compact of Mn powder on the sintered specimens containing constant Ni/Fe ratio of 8 2 but different W contents of 93 and 97 wt pct followed by resintering.