| AVS 55th International Symposium & Exhibition | |
| Surface Science | Thursday Sessions |
| Session SS-ThP |
| Session: | Poster Session |
| Presenter: | L.A. Autry, The University of Connecticut |
| Authors: | L.A. Autry, The University of Connecticut D.G. Goberman, The University of Connecticut H.M. Marcus, The University of Connecticut R.R. Ramprisad, The University of Connecticut |
| Correspondent: | Click to Email |
Ion implantation has been a useful technique for advanced materials processing for many decades. The range of materials that have been ion beam modified covers most classes of materials and many of these classes in great detail. However, with advances in analytical techniques and new manufacturing techniques and objectives, interesting and new observations of ion beam affects are often just waiting to be found. This research has focused on the affect of various ion implanted species on the chemistry and microstructure of tool steel. The inherently heterogeneous microstructure of tool steels affects both the implantation depth and concentration of implanted ions within the steel. This leads to a near surface region where the ultimate affect of ion implantation is, itself, affected by the local microstructure. Small spot surface spectroscopic analysis will be presented which highlights the magnitude of the phenomenon and the implications of this will be discussed. In addition to the affect of heterogeneous microstructures on ion implanted tool steel, the intertwined affect of surface preparation will be discussed. Often surface oxides are removed prior to ion implantation either as a by-product of normal materials preparation or intentionally in order to simplify characterization. However, oxides can be quite adherent and are found on many tool steels in use today. An analysis of ion implanted oxidized steel will be presented and tied into the discussion of how local microstructure can affect ion implantation profiles within tool steel.