Abstract

The generation of residual deformations on AISI 316 stainless steel submitted to pulsed ion implantation by means of a plasma focus device was investigated. It is shown that the residual deformation can be attributed to thermal stresses induced in the target by the strong and fast heating process due to the accelerated ions. A numerical simulation is presented as an attempt to explain the generation of these deformations. The model is based on the computation of the temperature distribution in the implanted zone and the calculation of the induced thermal stresses. The mechanical response of the whole specimen is then evaluated using the finite-element method. Numerical results are compared with those measured by means of a holographic method and reasonable agreement is obtained.

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