Change in the Microgeometry of Sliding-Friction Units during Operation in Nitric Acid,

Abstract

The paper studies slide bearings made of nonmetallic materials with lubrication of 42% nitric acid. Studied were bearings made of antifriction graphite, fluoroplastic-4 and slag microcrystalline glass at specific pressures of 1.0-9.0 kg/sq. cm. and a journal circular speed of 1-8.3 m/s. Removable journals were made from acid-resistant chrome-nickel austenite-ferrite stainless steel EI-654. The microgeometry of the friction surfaces was determined on the 'VEI-Kalibr' profilometer-profilograph and the MIM-7 microscope.

Document Details

Document Type
Technical Report
Publication Date
Nov 30, 1973
Accession Number
AD0772651

Entities

People

  • D. I. Sorkin
  • D. V. Galivets

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Acids
  • Austenite
  • Bearings
  • Chemical Compounds
  • Friction
  • Graphitic Materials
  • Lubricants
  • Lubrication
  • Materials
  • Microscopes
  • Nitric Acid
  • Profilometers
  • Sliding Friction
  • Stainless Steel
  • Steel

Readers

  • Metallurgy
  • Surface Coatings Technology.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).