Title: Performance of carbide composites for cyclic loading applications

Authors: Heinrich Klaasen, Jakob Kubarsepp

Addresses: Department of Materials Engineering, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia. ' Department of Materials Engineering, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia

Abstract: The present study attempts to give deeper insight into the surface damage process of carbide composites such as WC hardmetals and TiC-based cermets in the blanking of sheet metals (in cyclic loading conditions). In addition, it focuses on the relationships between the blanking performance of composites on the one hand and the structure-composition and properties – wear resistance, plasticity, fatigue strength – on the other hand. The influence of advanced sintering techniques on the performance of carbide composites is estimated. A set of laboratory (abrasive wear, adhesive wear, strength, fatigue) and functional tests (blanking of sheet metals) were performed and the effect of advanced sintering techniques (sinter/HIP) on the properties and microstructure developments during testing was analysed by SEM and XRD.

Keywords: carbide composites; hard metals; cermets; blanking tools; wear resistance; plasticity; fatigue strength; adhesive wear; brittle fracture; cyclic loading; sintering; HIP; surface damage; sheet metal blanking; microstructure; metal powders; hot isostatic pressing.

DOI: 10.1504/IJMPT.2007.013087

International Journal of Materials and Product Technology, 2007 Vol.28 No.3/4, pp.399 - 424

Published online: 07 Apr 2007 *

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