Abstract
A POINT of interest concerning the microstructure of WC–Co hard metals is the question of the so-called continuous carbide “skeleton”. Some authors1 claimed that the skeleton is necessary to explain the extremely high compressive strength and rigidity of such alloys. Electron microscopic observations on replicas and residual stresses present after sintering have also been looked on as proof of the skeleton theory2,3. On the other hand, the opinion was expressed4,5 that all the WC grains are surrounded by a very thin layer of the binder phase, that is, chiefly cobalt. A compromise between these two extremes was later put forward6.
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PERSSON, G. Thin Foils of WC–Co Hard Metal. Nature 218, 159–160 (1968). https://doi.org/10.1038/218159a0
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DOI: https://doi.org/10.1038/218159a0
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