Ion beam modification on the surface of tin-bronze and non-destructive methods for surface analyses

In this study, some tin-bronze specimens are ion recoil implanted by (Ag+N2+), which increases the micro-hardness of surface by about 56% and the wear resistance by a factor of 37; and some are binary implanted by (N++B+), which decreases the average temperature rise of the friction surface by 14oC and increases the average wear resistance by a factor of 3. Rutherford Backscattering Spectrometry (RBS) and 11B(p,αo)8Be Nuclear Reaction Analysis (NRA) are used to determine the content and depth distribution of implanted elements. The mechanism of ion beam modification on tin-bronze surfaces is discussed in this paper. (Author)