Fabrication of Functionally Gradient Ultrafine-Grained WC-Co Composites

Yi Gao Yuan; Jian Jun Ding; Yan Kun Wang; Wei Quan Sun

doi:10.4028/www.scientific.net/AMM.423-426.885

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 423-426Fabrication of Functionally Gradient...

Fabrication of Functionally Gradient Ultrafine-Grained WC-Co Composites

Abstract:

The carburizing heat treatments of ultrafine-grained WC-Co composites with sub-stoichiometric carbon content were carried out, and the microstructures of ultrafine-grained WC-Co carbides before and after treated were characterized by means of scanning electron microscopy and X-ray diffraction. The results show that the functionally gradient ultrafine-grained WC-Co hardmetals with a Co depleted surface and not comprising the η-phase can be fabricated by carburizing heat treatment. After heat treatment, WC grain sizes in materials are still at the ultrafine grade.

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Periodical:

Applied Mechanics and Materials (Volumes 423-426)

Pages:

885-889

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.423-426.885

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Online since:

September 2013

Authors:

Yi Gao Yuan*, Jian Jun Ding, Yan Kun Wang, Wei Quan Sun

Keywords:

Carburization, Compositional Gradient, Ultrafine-Grained Cemented Carbides, η-Phase

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* - Corresponding Author

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