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Show simple item record Milman, YV Chugunova, S Goncharuck, V Luyckx, S Northrop, IT 2007-06-12T07:32:27Z 2007-06-12T07:32:27Z 1997
dc.identifier.citation Milman, YV, et al. 1997. Low and high temperature hardness of WC-6 wt%Co alloys. International Journal of Refactory Metals and Hard Materials, vol 15, 3 January, pp 97-101 en
dc.identifier.issn 0263-4368
dc.description Copyright: 1997 Elsevier Science Ltd en
dc.description.abstract The paper reports hardness measurements on WC-6 wt%Co of three different grain sizes in the temperature range from -196 to 900 degrees C. Coarser grades have been found to soften with increasing temperature at a higher rate than finer grades. It has been confirmed that hardness decreases with increasing grain size over the whole range of temperatures and it has been shown that the decrease in hardness with increasing grain size follows a Hall-Fetch-type relationship at all the temperatures tested. For the investigation, disks of 14mm in diameter and 3mm in thickness were used as samples. The grain size was measured by means of a Leica Q500MC image analyser. However this investigation confirmed that the hardness of WC-6 wt%Co decreases with increasing temperature and that the rate of softening is high between 196 and 20°C, decreases between 20 and 600°C, and increases again above 600°C. In addition, this work has shown that the rate of softening is higher for coarser than for finer grades in the range of temperatures investigated. en
dc.language.iso en en
dc.publisher Elsevier Science Ltd en
dc.subject Temperature measurements en
dc.subject Materials sciences en
dc.subject Metallurgical engineering en
dc.title Low and high temperature hardness of WC-6 wt%Co alloys en
dc.type Article en

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