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The Study of the Fundamentals of Lubrication with the Aid of Large Metal Crystals
Author(s) -
Gwathmey Allan T.
Publication year - 1951
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1111/j.1749-6632.1951.tb54249.x
Subject(s) - oxide , materials science , metal , crystal (programming language) , copper , lubrication , wetting , metallurgy , corrosion , composite material , computer science , programming language
Summary Experiments have been conducted with the aid of single crystals of copper which show that the chemical properties of the unit crystal and the processes of friction and wear depend on the crystal face exposed at the surface. The chemical reactions studied included oxidation, wetting, and corrosion. Static friction between bare copper crystals from which all oxide had been removed was found to vary by a factor of four, depending on the face exposed at the surface. When a single crystal was corroded by hot oils it was found that some faces became very rough while others remained very smooth, and this relative smoothness of the surface was shown to affect wear through a film of lead very greatly. The chemical attack of the metals by lubricants and the process of wear between metals was affected greatly by the presence of oxygen in the surrounding atmosphere.