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Metallurgical and Materials Transactions A

Published in:

01-07-2014

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

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

Published in: Metallurgical and Materials Transactions A | Issue 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.

previous article The Evolution of As-cast Microstructure of Ternary Mg-Al-Zn Alloys: An Experimental and Modeling Study

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Title: Powder-Route Synthesis and Mechanical Testing of Ultrafine Grain Tungsten Alloys
Authors: Zachary C. Cordero
Emily L. Huskins
Mansoo Park
Steven Livers
Megan Frary
Brian E. Schuster
Christopher A. Schuh
Publication date: 01-07-2014
Publisher: Springer US
Published in: Metallurgical and Materials Transactions A / Issue 8/2014
Print ISSN: 1073-5623
Electronic ISSN: 1543-1940
DOI: https://doi.org/10.1007/s11661-014-2286-1

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