Phase transformations during annealing of WC-Co powders

Phase transformations during the annealing of powders produced by the electrodispersion of WC-Co alloys are considered. All the powders contained various amounts of high-temperature β-WC phase. Eutectoid decomposition β-WC → α-WC + W 2 C is found to result first in the formation of needle α-WC cryst...

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Bibliographic Details
Published in:Russian journal of non-ferrous metals 2011-06, Vol.52 (3), p.280-284
Main Authors: Putintseva, M. N., Bashurov, Yu. P.
Format: Article
Language:English
Subjects:
Alloys
Annealing
Cemented carbides
Ceramic
Chemistry and Materials Science
Cobalt
Composite Materials
Crystals
Materials Science
Metallic Materials
Nonferrous metals
Phase transformations
Refractory
Tungsten carbide
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Summary:Phase transformations during the annealing of powders produced by the electrodispersion of WC-Co alloys are considered. All the powders contained various amounts of high-temperature β-WC phase. Eutectoid decomposition β-WC → α-WC + W 2 C is found to result first in the formation of needle α-WC crystals and then in their destruction due to gliding.
ISSN:1067-8212
1934-970X
DOI:10.3103/S1067821211030205