Abstract
Abstract N+ implantation of thermally nitrided 17-4 PH stainless steel substantially improved friction and wear properties in lubricated sliding wear tests. Some improvement was also obtained by nitriding or by N+ implantation alone. Auger and surface topography analyses of specimens before wear testing indicated that the improved wear performance may be due in part to the implantation of carbon, and perhaps oxygen, when N+ was being implanted under a relatively high target chamber pressure and in part by the topographical alteration of the surface in thermal nitriding.
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