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Evaluation of Delamination Strength of Brittle Coating by Four-Point Bending Test
Journal of the Society of Materials Science Japan
In order to evaluate the delamination strength of brittle coating on ductile substrate, the four-point bending test method was proposed by expanding the tensile test method. The delamination energy was derived as a function of bending moment, curvature of specimen at delamination of coating and material's constants by theoretical analysis where the change of strain energy both in coating and substrate at delamination were considered. The method was applied to the specimen with WC-Co coating ondoi:10.2472/jsms.48.636 fatcat:gdes7ioswbbd7pjavcapqhrxd4