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Abstract：
The wasted cemented carbides were used as the raw materials and subjected to oxidation, reduction and carbonization reactions to synthesize the WC-Co composite powder. Then the recycled composite powder was sintered to prepare the cemented carbide bulk by the process of sinter-HIP. The phase composition and microstructure of the recycled composite powder and sintered bulk were investigated by XRD, SEM and TEM. The effects of carbon addition in the oxide powders on the phase composition and mechanical properties of the recycled composite power and the sintered bulk were investigated. By the present method, for the carbon addition of 16.60%, the high-performance cemented carbide bulk was obtained, with fracture toughness of 24.80 MPa(.)m(1/2) and transverse rupture strength of 3860 MPa. The relationship between microstructure and properties of the sintered bulk was investigated.
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RARE METAL MATERIALS AND ENGINEERING
ISSN： 1002-185X
Year： 2014
Issue： 12
Volume： 43
Page： 3172-3176
0 . 7 0 0
JCR@2022
ESI Discipline： MATERIALS SCIENCE;
ESI HC Threshold：341
JCR Journal Grade：4
CAS Journal Grade：4
Cited Count：
WoS CC Cited Count： 3
SCOPUS Cited Count：
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 7
Affiliated Colleges：
