Abstract
This paper describes the novel technique for evaluating the mechanical properties of ion-implanted surface layer. Some constants (Young modulus(E), yield stress (σ_y), work hardening coefficient (A) and work hardening exponent (n)) in the constitutive equation assumed as the power law curve were determined by the indentation test with indenters having different tip angles. The technique is combined with a finite element method. The indentation test with a spherical indeter and its simulation analyses were performed to examine accuracy of the constitutive equation determined by the technique. Furthermore, the influences of shape of indenter on the evaluation of mechanical properties and thickness of ion-implanted surface layer were discussed.
