Abstract
Critical stress intensity factor, and related parameters have been measured in three-point bending for 18 different combinations of different volume fractions of cobalt (5 to 37%) and grain size of tungsten carbide (0.7, 1.1 and 2.2 μm). In particular, a study was made of the correlations between the strength and mechanical and microstructural parameters, such as ¯L Co,C WC, ¯L Co/¯D WC, ¯L 2Co /¯D WC,H V and wear resistance. A hypothesis for the mechanism of fracture has been proposed following an analysis of these results and a study of the mode of fracture.
Article PDF
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
References
S. S. Yen, M.S. Thesis, Lehigh University (1971).
J. L. Chermant, A. Deschanvres andA. Iost,Mat. Res. Bull. 8 (1973) 925.
Idem; in “Fracture Mechanics of Ceramics”, edited by R. C. Bradt, D. P. H. Hasselman and E. F. Lange, (Plenum Press, New York, 1974) p. 347.
R. C. Lueth,ibidin “, Vol. II (1974) p. 791.
F. Osterstock, Diplôme d'Etudes Approfondies, Caen (1974).
N. Ingelström andH. Nordberg,Eng. Fract. Mech. 6 (1974) 597.
T. Johannesson, 4th European Symposium for Powder Metallurgy, Grenoble, 13–15 May 1975, no. 5–11.
J. L. Chermant, F. Osterstock andR. Meyer,ibid, no. 5–12.
S. A. Saltykov, “Stereometric Metallography” (Metallurgizdat, Moscow, 1958).
M. Coster, Thèse de Doctorat ès-Sciences, Caen, (1974).
M. Drouzy.Prakt. Metal. 9 (1967) 481.
Proposed recommended practice for plane-strain fracture toughness testing of high-strength metallic materials using a fatigue-cracked bend specimen,A.S.T.M Standards 31 (1968) 1018.
Norme A.F.N.O.R., A 03-180, (February 1974).
W. F. Brown andJ. E. Srawley, A.S.T.M.-S.T.P. 410 (1967).
R. P. Felgar andJ. D. Lubahn,Trans. Soc. Test. Mat. 57 (1957) 770.
H. Doi, Y. Fujiwara, K. Mikaye andY. Oosawa.Met. Trans,1 (1970) 1417.
G. R. Irwin,J. Appl. Mech. 24 (1957) 361.
R. Pabst,Z. Werkstofftechnik 6 (1975) 17.
R. W. Davidge andG. Tappin,J. Mater. Sci. 3 (1968) 165.
J. Nakayama,J. Amer. Ceram. Soc. 48 (1965) 583.
F. Osterstock, Thèse d'Ingénieur Docteur, Caen, (1975).
J. L. Chermant, A. Iost andF. Osterstock,Proc. Brit Ceram. Soc. 25 (1975) 197.
J. L. Chermant, M. Coster andA. Deschanvres,Metallogr. 8 (1975) 271.
Idem, ibid 9 (1976) 199.
H. Doi, Y. Fujiwara andY. Oosawa, Proceedings of the International Conference on Mechanical Behavior of Materials, Vol. V (The Society of Materials Sciences, Japan, 1972) p. 207.
J. Gurland,Trans. Met. Soc. AIME 227 (1963) 1146.
F. R. N. Nabarro andS. B. Luyckx,Trans. J. Inst. Met. 9 suppl. (1968) 610.
J. C. Fisher, E. W. Hart, R. H. Pry,Acta Met. 1 (1953) 336.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Chermant, J.L., Osterstock, F. Fracture toughness and fracture of WC-Co composites. J Mater Sci 11, 1939–1951 (1976). https://doi.org/10.1007/BF00708272
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00708272