Changes in tribological properties of an AISI 440C martensitic stainless steel after ion implantation of carbon at very high doses
No Thumbnail Available
Identifiers
Publication date
1996-09
Advisors
Journal Title
Journal ISSN
Volume Title
Publisher
Citations
Export
Abstract
Ion implantation of N+ or C+ has been proven to be a suitable technique for improving tribological properties of steels. In the case of C+ implantation at very high doses, amorphization and a carbonaceous layer can be formed on the surface, the latter of which reduces adhesion when like-on-like material contact conditions occur, thereby decreasing surface wear and friction. A study to determine the influence of C+ ion implantation at very high doses (exceeding 1018 ions cm-2) on tribo-mechanical properties of AISI 440C steel is presented in this work. Ball-on-disc wear and friction tests using an AISI 440C steel ball showed a decrease of wear with increasing dose of more than one order of magnitude. A reduction in friction coefficient was also measured, from 1.0 down to 0.4. C 1s spectra from XPS analyses showed the presence of C-C bonds in the ion-implanted samples, suggesting the formation of a graphitic layer on the surface, responsible for the decrease in surface wear and friction after ion implantation.
Description
Type
Citation
Alonso , F , García , A , Ugarte , J J , Viviente , J L , Oñate , J I , Baranda , P S & Cooper , C V 1996 , ' Changes in tribological properties of an AISI 440C martensitic stainless steel after ion implantation of carbon at very high doses ' , Surface and Coatings Technology , vol. 83 , no. 1-3 , pp. 263-268 . https://doi.org/10.1016/0257-8972(95)02770-X