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Strength of Materials
Published in: Strength of Materials 3/2022

05-09-2022

Microstructure and Mechanical Properties of WC-Co-Ti(C0.5, N0.5)-Mo Cemented Carbides

Authors: G. Z. Sui, M. F. Gong, X. H. Wang, X. Q. Xia, D. Y. Mo, J. Dusza

Published in: Strength of Materials | Issue 3/2022

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Abstract

This paper reports the synthesis and properties of WC-Co-Ti(C0.5, N0.5)-Mo cemented carbides with various compositions by employing powder metallurgy processing technology. The effect of adding Mo to cemented carbides on their microstructure and mechanical properties is investigated. The volume shrinkage, porosity, microstructure characteristics, hardness, and indentation toughness are examined by analytical balance, indentation method, scanning electron microscope, and X-ray diffractometer, respectively. By adding 0.5 weight percent Mo to cemented carbides, the density and hardness can be increased to 14.12 g/cm3 and 1804.56 kgf/mm2, respectively, while the indentation fracture toughness remains at a tolerable level of approximately 7.6 MPa·m1/2. Furthermore, the addition of Mo to the WC-Co-Ti(C0.5, N0.5) cemented carbides can effectively inhibit Co loss, reduce microdefects in the systems, and improve the microstructure.
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Metadata
Title
Microstructure and Mechanical Properties of WC-Co-Ti(C0.5, N0.5)-Mo Cemented Carbides
Authors
G. Z. Sui
M. F. Gong
X. H. Wang
X. Q. Xia
D. Y. Mo
J. Dusza
Publication date
05-09-2022
Publisher
Springer US
Published in
Strength of Materials / Issue 3/2022
Print ISSN: 0039-2316
Electronic ISSN: 1573-9325
DOI
https://doi.org/10.1007/s11223-022-00422-2

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