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TRIBOLOGICAL PROPERTIES AT TEMPERATURES OF 293, 77 AND 4 K IN FRETTING.

Author(s) : IWABUCHI A., HONDA T., TANI J.

Type of article: Article

Summary

THE TRIBOLOGICAL PROPERTIES OF COPPER, STAINLESS STEEL, EPOXY AND POLYIMIDE WERE EXAMINED AT TEMPERATURES OF 293, 77 AND 4 K IN FRETTING, WHICH WAS OSCILLATING SLIP MOTION WITH A SMALL SLIP AMPLITUDE. FOR METAL-METAL COMBINATIONS THE FRICTIONAL PROPERTIES AT 293 AND 77 K WERE SIMILAR, WHILE THE COEFFICIENT OF FRICTION INCREASED AT 4 K. THESE RESULTS DEPENDED SIGNIFICANTLY ON OXIDATION PROPERTIES. FOR COMBINATIONS OF POLYMERS AGAINST METALS THE COEFFICIENTS OF FRICTION INCREASED AFTER 1,000 CYCLES AT 293 K BUT THEY MAINTAINED CONSTANT AT LOWER TEMPERATURES. WEAR PROPERTIES AGAINST TEMPERATURE SHOWED THE DECREASE WITH DECREASING TEMPERATURE EXCEPT FOR COMBINATIONS WITH EPOXY. THE INSTANTANEOUS TEMPERATURE RISE AT THE INTERFACE WAS ABOUT 2 K AT 293 K, WHILE IT WAS ABOUT 390 K AT 4 K FOR STAINLESS STEEL.

Details

  • Original title: TRIBOLOGICAL PROPERTIES AT TEMPERATURES OF 293, 77 AND 4 K IN FRETTING.
  • Record ID : 1991-1921
  • Languages: English
  • Source: Cryogenics - vol. 29 - n. 2
  • Publication date: 1989

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