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M6C formation during sintering of cemented carbides containing (Ti,W)C
KTH, Superseded Departments, Materials Science and Engineering.
2004 (English)In: International Journal of Refractory Metals and Hard Materials, ISSN 0263-4368, Vol. 22, no 1, 21-26 p.Article in journal (Refereed) Published
Abstract [en]

The temporary formation Of M6C during sintering of cemented carbides containing the cubic carbide (Ti,W)C is shown in samples exposed to interrupted sintering cycles. The M6C, revealed by magnetic-saturation measurements, X-ray diffraction and microscopy, is formed during the initial stage of sintering, but is dissolved as sintering proceeds. The overall carbon content does not change much between the sintering temperatures. It is believed that the initially nearly Aoichiometric (Ti,W)C releases carbon due to its equilibrium carbon content decreasing with increasing temperature, which makes dissolution possible. The temporary M6C would not normally be detected, since sample characterisation is in practice employed only after sintering.

Place, publisher, year, edition, pages
2004. Vol. 22, no 1, 21-26 p.
Keyword [en]
cemented carbide, sintering, microstructure, M6C, cubic carbide
National Category
Materials Engineering
URN: urn:nbn:se:kth:diva-45866DOI: 10.1016/j.ijrmhm.2003.11.001ISI: 000220345800004ScopusID: 2-s2.0-1242310241OAI: diva2:453233
QC 20111101Available from: 2011-11-01 Created: 2011-11-01 Last updated: 2011-11-01Bibliographically approved

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