Synthesis of Nanocrystalline Tungsten Alloy by Mechanical Alloying and Annealing

Abstract

Formation of partial nanocrystal and amorphous tungsten alloys was synthesized via crystallization of a completely amorphized tungsten alloy synthesized by mechanical alloying. Structural characterization shows formation of amorphous structure from mechanical alloying of a mixture of elemental tungsten and iron powders after about 150 hours. Partial nanocrystalline phases within the amorphous matrix were formed through annealing the amorphous tungsten alloy at 1075°C.

Characterization and formation mechanism of nanocrystalline W–Al alloy prepared by mechanical alloying

“…Tungsten alloys are used for kinetic energy penetrators, counter weights, radiation shields and electrical contacts [1]. W-Al alloys are expected to show improved mechanical properties compared to W [2].…”