Analysis of Near-Tip Crack Bridging in WC/Co Cermet

The remarkable toughening effect usually found in WC/Co cermets has been analyzed by means of a fracture mechanics approach based on R-curve characterization and in situ measurements of crack opening displacement (COD). The use of a crack stabilizer specially designed for the bending geometry enable...

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Veröffentlicht in:	Journal of the European Ceramic Society 1999, Vol.19 (1), p.119-123
Hauptverfasser:	Pezzotti, Giuseppe, Huebner, Heinz, Suenobu, Hiroyuki, Sbaizero, Orfeo, Nishida, Toshihiko
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences composites crack bridging Exact sciences and technology fracture Fractures Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy toughening tungsten carbide
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Beschreibung
Zusammenfassung:	The remarkable toughening effect usually found in WC/Co cermets has been analyzed by means of a fracture mechanics approach based on R-curve characterization and in situ measurements of crack opening displacement (COD). The use of a crack stabilizer specially designed for the bending geometry enabled to detect the rising R-curve behavior of the material starting from the very neighborhood behind the crack tip (i.e.
ISSN:	0955-2219 1873-619X
DOI:	10.1016/S0955-2219(98)00179-4