Nanostructuring Of Tungsten Through Cryogenic Attrition

Abstract

Previous research has shown that nanostructuring tungsten grains can significantly lower the ductile-tobrittle transition temperature of tungsten, improving low (near room) temperature ductility. Cryogenic attrition of coarse grained tungsten powders is an attractive technique for nanostructuring due to its capabilities for preventing oxidation, easing scalability, and possibly introducing grain-stabilizing nanoscale dispersoids. In this work, the feasibility of applying cryogenic attrition to the nanostructuring of coarse grain tungsten powders was explored through the examination of the morphology and grain size of the powder via transmission electron microscopy, scanning electron microscopy, and powder x-ray diffraction. Gas fusion chemical analysis was used to determine if there were any increases in the oxygen, hydrogen, or nitrogen concentration of the powder after cryogenic attrition.

Publication Date

1-1-2015

Publication Title

Advances in Powder Metallurgy and Particulate Materials - Proceedings of the 2015 International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2015

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

84978505252 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84978505252

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