Nitrogen plasma source ion implantation of AISI S1 tool steel |
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Authors: | A M Redsten K Sridharan F J Worzala and J R Conrad |
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Affiliation: | Plasma Source Ion Implantation Program, 835 Engineering Research Building, 1500 Johnson Drive, University of Wisconsin-Madison, Madison, WI 53706, USA |
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Abstract: | Significant economic savings can be achieved by improving the wear lifetime of precision manufacturing tools through nitrogen-ion implantation. This near-ambient temperature, surface modification process preserves dimensional integrity and surface finish while eliminating delamination problems that are often associated with overlay coatings. Conventional ion implantation is a line-of-sight process which requires elaborate manipulation and masking to uniformly implant components of complex shapes. A recently developed process, plasma source ion implantation (PSII), circumvents this line-of-sight restriction and makes ion implantation more attractive economically. In this article, the effects of PSII of nitrogen at a target bias of 50 kV, to a dose of 0.3 × 1018 atoms/cm2 on the surface microstructure and mechanicalproperties of AISI S1 tool steel are presented. |
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