Abstract
Applying dimensional theorem and finite element method, Vickers indentation diagonal length and the load–displacement curves of instrumented indentation test on elastoplastic materials with Berkovich triangular and Vickers quadrangular pyramid diamond indenters were systematically analyzed. Consequently, the approximate functional relationships between instrumented indentation hardness and traditional Vickers hardness were established, and a method for identifying traditional Vickers hardness by instrumented Berkovich or Vickers indentation curves was proposed. Through the error evaluation on the proposed method determined by finite element numerical simulation and the results of the experimental tests on representative metal and ceramic materials, it was demonstrated that the Vickers hardness of the indented materials could be effectively identified only by using the instrumented indentation curves without observing and measuring the Vickers indentation diagonal length.
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