Study of Hard Non-ferrous Materials for Arduous Conditions of Rolling Contact

Abstract

As our technological civilization progresses, ever increasing demands are made on rolling mechanisms. Advance in some fields, such as aeronautical and space pplications involving extreme operating temperatures and environments, can in many instances be achieved only by substantial improvements of the properties of currently used materials or the development and use of improved structural mater-ials. Conventional liquid lubricants are generally unsuit-able at elevated temperatures and are lost by evaporation in low pressure environments, and therefore some rolling mechnisms require to operate unlubricated or be lubricated by solid films or by surface treatments.