Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
Volume 342, Issue -, Pages 1-6Publisher
ELSEVIER
DOI: 10.1016/j.nimb.2014.09.004
Keywords
Ion implantation; Long-range effect; Stainless steel; Tribological properties
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The effect of nitrogen ion implantation on AISI 316L stainless steel was investigated. The microstructure and composition of an N implanted layer were studied by RBS, GIXRD, SEM, and EDX measurements. Friction and wear tests were also performed. The discrepancy between the measured and calculated stopped ion maximum range does not exceed 0.03 mu m. After nitrogen implantation with a fluence of 5 x 10(17) ion/cm(2), additional phases of expanded austenite were detected. At a 5-fold larger depth than the maximum ion range, improvement in the coefficient of friction and wear was detected. We have shown, for the first time, the long-range effect in tribological investigations. The long-range effect is caused by movement of not only defects along the depth of the sample, as assumed so far, but also nitrogen atoms. (C) 2014 Elsevier B.V. All rights reserved.
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