The Effect of Mo and Dispersoids on Microstructure, Sintering Behavior, and Mechanical Properties of W-Mo-Ni-Fe-Co Heavy Tungsten Alloys

Chun-Liang Chen, . and Sutrisna, . (2019) The Effect of Mo and Dispersoids on Microstructure, Sintering Behavior, and Mechanical Properties of W-Mo-Ni-Fe-Co Heavy Tungsten Alloys. metal, 9 (111): -. pp. 1-11. ISSN -

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Abstract

Abstract: W-Mo-Ni-Fe-Co heavy tungsten alloys were fabricated by mechanical alloying. The
effects of Mo and oxide dipsersoids on the characteristics and properties of the model alloys were
investigated. In this study, the W-Mo matrix and γ-Ni(Fe,Co) binder phase were further
synthesized with Y2O3 by a secondary ball milling method. The results suggest that the
microstructure and sintering behavior of the model alloys are strongly influenced by the dispersed
oxide particles. The model alloys with the Y2O3 addition demonstrate grain refinement and
uniform microstructure. The dispersed particles could act as an inhibitor for diffusion of tungsten
atoms and grain growth, promoting the formation of solid state during sintering. Consequently,
good densification, high hardness, and elastic modulus of alloys can be achieved.
Keywords: heavy tungsten alloy; mechanical alloying; sintering

Item Type: Article
Uncontrolled Keywords: heavy tungsten alloy; mechanical alloying; sintering
Subjects: T Technology > TJ Mechanical engineering and machinery
Depositing User: Dwi Lestari Lestari
Date Deposited: 10 Sep 2021 04:16
Last Modified: 10 Sep 2021 04:16
URI: https://repository.itny.ac.id/id/eprint/3011

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