Abstract
Compression-compression precracking of brittle materials has recently been applied to fracture toughness testing. This paper reports the results of an experimental programme of fracture toughness testing of a WC-Co alloy containing 10% cobalt by weight. Tests were performed on specimens precracked by cyclic compression and on specimens in which this compression-compression precrack was subsequently extended by tensile fatigue. Toughness data obtained in this way were compared with the results of short-rod toughness tests. The causes of differences etween these various data are discussed.
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James, M.N., Human, A.M. & Luyckx, S. Fracture toughness testing of hard metals using compression-compression precracking. J Mater Sci 25, 4810–4814 (1990). https://doi.org/10.1007/BF01129946
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DOI: https://doi.org/10.1007/BF01129946