Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 303, Issue 1-2, Pages 179-186Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/S0921-5093(00)01845-1
Keywords
hardness testing; Ti(C,N)-based cermets; indentation size effect
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The Vickers hardnesses of a series of Ti(C,N)-based cermets were measured in the indentation load range from 1.47 to 40.67 N. It was found that the examined materials exhibit a reversed indentation size effect, i.e. the measured hardness increases with increasing indentation load. Both Meyer's law and the energy balance model can not provide a proper description for the observed experimental phenomena, while the polynomial series representation can describe the experimental data very well. A possible explanation for the cause of the observed reverse indentation size effect was also proposed. (C) 2001 Elsevier Science B.V. All rights reserved.
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