Fabrication and Microstructures of WC-Based Composites by Plasma Jet Metallurgy

Fabrication and Microstructures of WC-Based Composites by Plasma Jet Metallurgy

The WC-Fe bulk composites were prepared by means of the plasma jet metallurgy using WO3, C and Fe-based alloy powder as raw materials. Phases of the composites were mainly WC, W2C, M6C, M7C3 and (Fe, Ni).The WC grains formed in situ had rectangular or triangular shapes with size of 30-70μm. The grow...

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Veröffentlicht in:Advanced Materials Research 2013-01, Vol.652-654, p.60-63
Hauptverfasser: Li, Min, Li, Jian Nan, Chi, Jing, Wang, Shu Feng, Li, Hui Qi
Format: Artikel
Sprache:eng
Schlagworte:
Alloy powders
Carbides
Metallurgy
Microstructure
Particulate composites
Peritectic reactions
Phases
Raw materials
Tungsten oxides
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Zusammenfassung:The WC-Fe bulk composites were prepared by means of the plasma jet metallurgy using WO3, C and Fe-based alloy powder as raw materials. Phases of the composites were mainly WC, W2C, M6C, M7C3 and (Fe, Ni).The WC grains formed in situ had rectangular or triangular shapes with size of 30-70μm. The growth morphology of Fe3W3C was faceted polygon and herringbone. The formation of the unique composite microstructure was attributed to the incomplete peritectic reaction between W2C and Fe3W3C.
ISSN:1022-6680
1662-8985
1662-8985
DOI:10.4028/www.scientific.net/AMR.652-654.60