![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
The scuff-limited load capacity of both hardened and annealed AISI 52100 steel balls sliding against hardened carbon steel flats were investigated. Silicone oils were used us the lubricants. The test flats were prepared by directional grinding to ∼ 250 nm Ra, then abrading with various grades of abrasive paper.
When tested in methylphenyl silicone oil, as-ground flats exhibited the highest load capacity—the smoothest flats, finished on a metallographic polishing wheel with 600-grit abrasive, the lowest. Load capacity flats finished with abrasive paper correlated with the grit size of the abrasive paper: coarser-grit paper produced flats with higher load capacity.
As the flats run in, Rq decreased and β* increased such that the surfaces “moved,” in the Rq - β* plane, in a direction approximately perpendicular to lines of constant ψ. Failure occurred when ψ reached a value of ∼ 0.01, regardless of initial surface topography. However, the rougher surfaces with larger initial values of ψ, were able to sustain more wear before failing.
Presented at the 41st Annual Meeting in Toronto, Ontario, Canada May 12–15, 1986
Notes
Presented at the 41st Annual Meeting in Toronto, Ontario, Canada May 12–15, 1986