Method for determining Vickers hardness of materials by Vickers instrumented indentation work ratio and martens hardness

The problem of Vickers morphology is not clear due to the Vickers hardness does not recognize during the traditional Vickers hardness testing. The instrumented indentation test were analyzed by employing dimensional theorem and finite element method, meanwhile, combined with the finite element numerical results of Vickers hardness, the approximate function relationships among Vickers indentation work ratio(We/Wt), martens hardness and Vickers hardness were revealed. Based on the relationships, a new method was then proposed to determine the Vickers hardness of materials by Vickers indentation work ratio and martens hardness, and its accuracy was analyzed. The results show that, compared with ISO14577, this method has higher accuracy.