Thermal conductivity of cemented carbide varies depending on composition and manufacturing process.
Generally speaking, the thermal conductivity of cemented carbide is 1 to 2 times higher than that of high-speed steel, and on average about 15 times higher than that of quenched steel. However, its specific value will be affected by a variety of factors, such as composition, grain size, heat treatment, etc. .
The thermal conductivities of some common cemented carbide are as follows: The thermal conductivity of tungsten-cobalt alloy (YG6) is 0.58~0.88W/(m·K), and the thermal conductivity of tungsten-titanium-cobalt alloy (YT30) is 0.3~0.5W/ (m·K), while the thermal conductivity of tungsten-cobalt-titanium alloy changes according to the content of titanium carbide, which is about (0.2~0.3)×10-3W/(m·K).
It should be noted that cemented carbide is a composite material, and its thermal conductivity will be affected by many factors. Therefore, the specific thermal conductivity value needs to be designed and optimized based on the actual application scenarios and requirements of cemented carbide.
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