Accession Number : AD0287900

Title :   BEARING MATERIALS FOR PROCESS FLUID LUBRICANTS

Corporate Author : MECHANICAL TECHNOLOGY INC LATHAM N Y

Personal Author(s) : PETERSON,M.B.

Report Date : 11 SEP 1962

Pagination or Media Count : 1

Abstract : IT WAS CONCLDED THAT 3 MAJOR PROBLEMS MUST BE SOLVED BEFORE A MATERIAL COULD BE CONSIDERED: CORROSION, EROSION, AND SLIDING DAMAGE. Potential corrosion resistant base materias were selected from literature sources. These materi-ALS ARE Al, Cr, Co, Cu, a, Ni, i, zr, Hf, Fe, A , Ag, and Pt. Bi, Re, and W are a so included for special purposes. Temperature limits are suggested as well as the effects of O2, C1, CO2, SO2, insofar as these data are available. These are considered to be the main factors in various waters. Consideration was given to solubility, formation of soft oxide films, crystal structure, melting temperature, recrytalliztion temperature, thermal conductivity, and hardness. Based on these factors, Co, Cu, Au, and Pt alloys are considered most promising in the temperaure range 350-500 F. Plastics are considered most promising at temperatures below 350 F. The primary unanswered question is that of the oxide film and its effectiveness. Experiments are proposed to determine if an oxide is formed and if surface damage can be prevented. (Author)

Descriptors :   *BEARINGS, *LUBRICANTS, ALLOYS, CARBON COMPOUNDS, CHLORINE, CORROSION, CRYSTAL STRUCTURE, CRYSTALLIZATION, DIOXIDES, EROSION, FAILURE (MECHANICS), FILMS, FRICTION, HARDNESS, MATERIALS, MELTING, METALLIC COMPOUNDS, METALS, MOLYBDATES, OXIDES, OXYGEN, SOLUBILITY, SULFUR COMPOUNDS, SURFACES, TEMPERATURE, THERMAL CONDUCTIVITY, TRANSITION METALS, TUNGSTATES

Distribution Statement : APPROVED FOR PUBLIC RELEASE