Accession Number : ADA119716

Title :   Mechanisms of Fretting Fatigue Crack Initiation in Medium Strength Steels.

Descriptive Note : Final technical rept.,

Corporate Author : RENSSELAER POLYTECHNIC INST TROY NY DEPT OF MATERIALS ENGINEERING

Personal Author(s) : Duquette,D J

PDF Url : ADA119716

Report Date : 01 Sep 1982

Pagination or Media Count : 7

Abstract : Effects of carburization and decarburization were studied on the fretting fatigue behavior of a medium carbon steel at room temperature. Tests were conducted in room air in a listing frame which was designed to vary the fretting (normal) load, and the relative displacement (slip amplitude) between the list specimens and fretting pads. Statistical studies conducted on the specimens indicated that after a threshold value of normal load, the fretting fatigue lives dropped by an order of magnitude. No significant effects of slip amplitude or fretting wear were observed on the fretting fatigue life. (Author)

Descriptors :   *Low alloy steels, *Carbon steels, *Crack propagation, *Fatigue(Mechanics), *Fretting, Thermochemistry, Heat treatment, Carburizing, Surface properties, Mechanical properties, Stress analysis, Microstructure, Fatigue life, Loads(Forces)

Subject Categories : Properties of Metals and Alloys
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE