Survey of Wear Processes and the Particles from Wear by Means of a Ferrograph.
TRANS-SONICS INC BURLINGTON MASS
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During the sliding or rolling of one metal part against another, tiny metallic particles are produced. If the metal parts are lubricated by oil or grease the particles produced are of such a size that they are suspended in the oil in a colloidal manner. If one of the two metallic parts is composed of steel or alloys of steel, the metal particles generated during the wear process exhibit magnetic properties. The Ferrograph is an instrument which precipitates out these particles and deposits them on a transparent substrate. The particle sizes grade continuously along the substrate so that it is possible to examine individual particles in detail without interference from a random pile of other particles. This report surveys some of the findings about wearing systems and in large part is concerned with the correspondence between particle type and the class of mechanical part wearing. Author
- Lubricants and Hydraulic Fluids
- Test Facilities, Equipment and Methods