Spark Plasma Sintering of Aluminum-Magnesium-Matrix Composites with Boron Carbide and Tungsten Nano-powder Inclusions

Modeling and Experimentation

E. S. Dvilis, Oleg Leonidovich Khasanov, V. N. Gulbin, Maria Stanislavovna Petyukevich, Alexey Olegovich Khasanov, E. A. Olevsky

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Spark-plasma sintering (SPS) is used to fabricate fully-dense metal–matrix (Al/Mg) composites containing hard ceramic (boron carbide) and refractory metal (tungsten) inclusions. The study objectives include the modeling (and its experimental verification) of the process of the consolidation of the composites consisted of aluminum-magnesium alloy AMg6 (65 wt.%), B4C powder (15 wt.%), and W nano-powder (20 wt.%), as well as the optimization of the composite content and of the SPS conditions to achieve higher density. Discrete element modeling of the composite particles packing based on the particle size distribution functions of real powders is utilized for the determination of the powder compositions rendering maximum mixture packing densities. Two models: a power-law creep model of the high temperature deformation of powder materials, and an empirical logarithmic pressure–temperature–relative density relationship are successfully applied for the description of the densification of the aluminum-magnesium metal matrix powder composite subjected to spark-plasma sintering. The elastoplastic properties of the sintered composite samples are assessed by nanoindentation.

Original languageEnglish
Pages (from-to)908-919
Number of pages12
JournalJOM
Volume68
Issue number3
DOIs
Publication statusPublished - 1 Mar 2016

Fingerprint

Boron carbide
Spark plasma sintering
Aluminum
Powders
Magnesium
Tungsten
Composite materials
Refractory metals
Nanoindentation
Magnesium alloys
Densification
Particle size analysis
Consolidation
Particles (particulate matter)
Distribution functions
tungsten carbide
Aluminum alloys
Creep
Metals
Chemical analysis

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

Spark Plasma Sintering of Aluminum-Magnesium-Matrix Composites with Boron Carbide and Tungsten Nano-powder Inclusions : Modeling and Experimentation. / Dvilis, E. S.; Khasanov, Oleg Leonidovich; Gulbin, V. N.; Petyukevich, Maria Stanislavovna; Khasanov, Alexey Olegovich; Olevsky, E. A.

In: JOM, Vol. 68, No. 3, 01.03.2016, p. 908-919.

Research output: Contribution to journalArticle

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