Journal
SCRIPTA MATERIALIA
Volume 52, Issue 11, Pages 1087-1091Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2005.02.011
Keywords
fatigue; toughness; carbides; loading mode
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The fracture toughness and fatigue crack growth resistance (FCG) of WC-Co cemented carbides under tensile (I), shear (II) and mixed (I + II) loading modes were investigated. It is found that (1) fracture toughness values evaluated under pure loading modes are comparable to one other; (2) FCG rates are enhanced as loading mode varies from pure shear to pure tensile; and (3) FCG threshold in mode I represents the critical condition for FCG initiation in these materials. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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