Structural modification induced by Mo implantation in stainless steel

Abstract

316LVM, an austenitic stainless steel, was implanted at 49 keV with molybdenum ions. Implantation doses varied between 1×10 15 and 3.5×10 16 ions cm −2. The structure of the implanted layer was examined by grazing incidence X-ray diffraction. As a function of ion dose, expanded fcc austenite was first observed, then a tetragonal distortion of the fcc lattice occurred. Above 8×10 15 ions cm −2 a new bcc structure appeared and finally the implanted layer was amorphized.