Abstract
The steels AISI 52100, 440B, 321 and M2 were implanted with oxygen ions to reduce sliding wear in a ball-on-disk tribometer. The wear rates of case-hardened samples decreased by up to three orders of magnitude as oxidation of the wear surfaces (tribo-oxidation) was promoted by implanted oxygen ions. By variations in sample hardness and sliding speed a classic dependence of track oxidation on wear contact temperature was observed. Surface analysis by means of secondary ion mass spectroscopy and X-ray photoelectron spectroscopy proved a surface composition close to Fe 2O 3 to be most beneficial for wear reduction. When implanted samples were examined by transmission electron microscopy, no precipitates were observed, and results of Mössbauer spectroscopy confirmed the amorphous state of the oxygen-implanted surface layers. Samples of annealed AISO 52100 and 321 showed higher wear resistance after oxidation at 670 K than after ion implantation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
