Liquid Phase Sintering of (Ti,W)C-Ni-Co-Cr Cermets: Microstructure and Abrasive Wear Behavior

TiC-WC-(Ni,Co,Cr) cermets are potential candidates for the substitution of straight cemented carbides in certain wear applications. This work analyses the effect of Ti/W and Co/Ni ratios on the microstructure and abrasion resistance of this type of cermets. From a microstructural point of view, cerm...

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Bibliographic Details
Published inSolid state phenomena Vol. 274; pp. 1 - 8
Main Authors Ibarreta, F., Sanchez, J.M., Lozada, L., Martinez, R., Iparraguirre, I.
Format Journal Article
LanguageEnglish
Published Zurich Trans Tech Publications Ltd 01.05.2018
Subjects
Abrasive wear
Cermets
Chromium
Liquid phase sintering
Tungsten
(Ti,W)C-Ni-Co-Cr Cermets
Ti/W Ratio
Microstructure
Sintering
Abrasion Resistance
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Summary:TiC-WC-(Ni,Co,Cr) cermets are potential candidates for the substitution of straight cemented carbides in certain wear applications. This work analyses the effect of Ti/W and Co/Ni ratios on the microstructure and abrasion resistance of this type of cermets. From a microstructural point of view, cermets in the (Ti,W)C-(Ni,Co,Cr) pseudo-binary region show uncontrolled (Ti,W)C grain growth and a high degree of contiguity of the carbide phase. A microstructural refinement is observed as the Ti/W ratio decreases, especially when WC precipitation occurs. Abrasion resistance in these materials is dominated by hardness.
Bibliography:Special topic volume with invited peer reviewed papers only
ISSN:1012-0394
1662-9779
1662-9779
DOI:10.4028/www.scientific.net/SSP.274.1