کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
614449 | 1454813 | 2015 | 9 صفحه PDF | دانلود رایگان |
• Sn-based overlay plated bearing materials were studied in mixed and boundary regime.
• When speed is varied, transition in friction was similar for Sn and Pb-based overlay.
• Sn and Pb-based overlays exhibited comparable friction and wear in boundary regime.
• Adhesive wear and abrasive wear were main wear mechanisms in Sn-based overlay.
A block-on-ring test setup is employed to investigate tribological performance of Sn-based overlay plated bearing materials under mixed and boundary lubrication condition. Pb-containing bearing material is also studied as a reference. Sn-based and Pb-based overlays have shown similar transition in friction when rotational speed is varied. Under relatively longer test duration, Sn-based overlays exhibit comparable friction and wear properties with that of Pb-based overlay. It takes longer time to obtain steady-state friction for Sn-based overlay than Pb-based overlay. Wear behavior of tested samples are also similar except for tests in the mixed lubrication regime where Sn-based overlays show better wear resistance. In the Sn-based overlays main wear mechanisms are adhesive and abrasive wear leading to exposure of the Ni interlayer.
Journal: Tribology International - Volume 92, December 2015, Pages 281–289