Thermal Expansion Coefficient and Thermal Conductivity of WC Based Cemented Carbides

Autor:	Koji Shinohara, Teruyoshi Tanase, Fumihiro Ueda
Rok vydání:	1993
Předmět:	Materials science Mechanical Engineering Metallurgy Alloy Metals and Alloys chemistry.chemical_element engineering.material Industrial and Manufacturing Engineering Grain size Thermal expansion Carbide Thermal conductivity chemistry Materials Chemistry engineering Wear resistant Carbon
Zdroj:	Journal of the Japan Society of Powder and Powder Metallurgy. 40:29-32
ISSN:	1880-9014 0532-8799
DOI:	10.2497/jjspm.40.29
Popis:	The linear thermal expansion coefficient (α) and the thermal conductivity (κ) of cemented carbides are very important properties for hot wear resistant tools. The effects of various structural factors such as binder content, carbon content, WC grain size and composition of binder on those parameters were studied.The results obtained were as follows. The α values were proportional to binder content only. They were hardly affected by WC grain size, carbon content of the alloy, and composition of binder. In the case of WC-Co alloy, the κ values decreased with increasing Co content and with decreasing WC grain size and carbon content of the alloy. The κ values of WC - Co - Ni - Cr alloy were lower than those of WC-Co alloy at the same structural factors.
Databáze:	OpenAIRE
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