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Erschienen in: Metallurgical and Materials Transactions A 8/2014

01.07.2014

Powder-Route Synthesis and Mechanical Testing of Ultrafine Grain Tungsten Alloys

verfasst von: Zachary C. Cordero, Emily L. Huskins, Mansoo Park, Steven Livers, Megan Frary, Brian E. Schuster, Christopher A. Schuh

Erschienen in: Metallurgical and Materials Transactions A | Ausgabe 8/2014

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Abstract

We report a W-rich alloy (W-7Cr-9Fe, at. pct) produced by high-energy ball milling, with alloying additions that both lower the densification temperature and retard grain growth. The alloy’s consolidation behavior and the resultant compacts’ microstructure and mechanical properties are explored. Under one condition, a 98 pct dense compact with a mean grain size of 130 nm was achieved, and exhibited a hardness of 13.5 GPa, a dynamic uniaxial yield strength of 4.14 GPa in Kolsky bar experiments, and signs of structural shear localization during deformation.

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Metadaten
Titel
Powder-Route Synthesis and Mechanical Testing of Ultrafine Grain Tungsten Alloys
verfasst von
Zachary C. Cordero
Emily L. Huskins
Mansoo Park
Steven Livers
Megan Frary
Brian E. Schuster
Christopher A. Schuh
Publikationsdatum
01.07.2014
Verlag
Springer US
Erschienen in
Metallurgical and Materials Transactions A / Ausgabe 8/2014
Print ISSN: 1073-5623
Elektronische ISSN: 1543-1940
DOI
https://doi.org/10.1007/s11661-014-2286-1

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