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Contribution of SiC particles to the formation of the structure of Mg-3 wt.% RE cast composites

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Published/Copyright: January 4, 2022
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 94 Issue 2

Abstract

A structural analysis of a Mg-3 wt.% rare earths (RE) matrix alloy and composites reinforced with 30 wt.% SiC particles has been performed. The specimens were obtained by gravity casting of the mechanically mixed suspension. The as-cast Mg-3 wt.% RE alloy was characterized by a dendritic microstructure with a very strong segregation of the alloying elements and the formation of the Mg12RE intermetallic phase, located in the interdendritic spaces. Introduction of the SiC particles into the matrix alloy caused the formation of a reaction layer at the interfaces between the components. Transmission electron microscopy analysis allowed the determination of the presence of RE3Si2 precipitates both at the interfaces between the components and in the composite matrix.

Keywords: Mg – rare earths matrix alloy composites; SiC particles; Microstructure
Dr. ing. Katarzyna N. Braszczyńska Institute of Materials Engineering Technical University of Czȩstochowa Al. Armii Krajowej 19, 42-200 Czȩstochowa, Poland Tel.: +4843 325 0735 Fax: +48 34325 0721

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Received: 2002-09-24
Published Online: 2022-01-04

© 2003 Carl Hanser Verlag, München

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  2. Articles/Aufsätze
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  5. Phase diagram of the Al–Cu–Fe quasicrystal-forming alloy system
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  12. Simulation of solidification and heat treatment of nickel-base superalloy SC16
  13. Contribution of SiC particles to the formation of the structure of Mg-3 wt.% RE cast composites
  14. Notifications/Mitteilungen
  15. Personal/Personelles
  16. Books/Bücher
  17. Gesellschaftsnachricht
  18. DGM Conferences
https://doi.org/10.3139/ijmr-2003-0028
Keywords for this article
Mg – rare earths matrix alloy composites; SiC particles; Microstructure

Articles in the same Issue

  1. Frontmatter
  2. Articles/Aufsätze
  3. Formation of nanoscale particles and their effect on properties of alloys
  4. The application of gallium as a liquid metal lubricant
  5. Phase diagram of the Al–Cu–Fe quasicrystal-forming alloy system
  6. Phase diagram of the Al–Cu–Fe quasicrystal-forming alloy system
  7. Phase diagram of the Al–Cu–Fe quasicrystal-forming alloy system
  8. The Zn-rich corner of the Zn–Fe–Co system at 450°C
  9. Study on the thermal fatigue of NiTi wires
  10. Dispersion strengthening of copper by internal oxidation of rapidly solidified Cu–RE alloys
  11. High-temperature oxidation of Cu–Ti-based rapidly solidified alloys
  12. Simulation of solidification and heat treatment of nickel-base superalloy SC16
  13. Contribution of SiC particles to the formation of the structure of Mg-3 wt.% RE cast composites
  14. Notifications/Mitteilungen
  15. Personal/Personelles
  16. Books/Bücher
  17. Gesellschaftsnachricht
  18. DGM Conferences
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