Harris, T.K., Brookes, E.J. and Taylor, C.J. (2004) The effect of temperature on the hardness of polycrystalline cubic boron nitride cutting tool materials. International Journal of Refractory Metals and Hard Materials, 22, pp. 105-110. (doi: 10.1016/j.ijrmhm.2004.01.004)
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Abstract
Polycrystalline cubic boron nitride (PcBN) cutting tools are used for the machining of ferrous alloys at high speeds and temperatures where the use of diamond is precluded due to graphitisation. To accurately predict the life of these tool materials it is necessary to understand inter alia the deformation and relevant mechanisms that occur at the temperatures and pressures associated with cutting. This paper uses Vickers indentation as a means of assessing the role of cBN content, binder phase and cBN grain size on the mechanical properties of a number of polycrystalline cubic boron nitride materials. It will be shown that as experimental temperatures increase, a change in deformation mechanism occurs in the tool materials, confirming that the indentation method is useful in the identification of such changes.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | UNSPECIFIED |
| Authors: | Harris, T.K., Brookes, E.J., and Taylor, C.J. |
| College/School: | College of Science and Engineering > School of Engineering > Systems Power and Energy |
| Journal Name: | International Journal of Refractory Metals and Hard Materials |
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