In:
Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 83-86 ( 2009-12), p. 810-817
Abstract:
Continuous composition gradients of several millimetres were generated in commercial WC-Co cutters to improve their shock resistance. This important gradation was obtained in one-step by using the imbibition process. The effects of this thermal processing were analysed in terms of microhardness, cobalt concentration and WC grain size. A gradient of a 300 HV amplitude is measured in the 8 mm-height sample treated by the imbibition process in association with a boron-rich coating. This gradient was preserved after the HPHT (high pressure – high temperature) step used for the diamond table deposition on the WC-Co cutter. To our knowledge, such gradients have never before been reported and should certainly increase cutter service life.
Type of Medium:
Online Resource
ISSN:
1662-8985
DOI:
10.4028/www.scientific.net/AMR.83-86
DOI:
10.4028/www.scientific.net/AMR.83-86.810
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2009
detail.hit.zdb_id:
2265002-7
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