An Investigation of the Coaxing Effect in Fatigue of Metals,

Abstract

The fatigue resistance of some metals may be improved by understressing followed by a process of gradually increasing the amplitude of the alternating stress in small increments, a procedure ordinarily called 'coaxing.' In the present paper a study is made of the effect of various coaxing procedures on the fatigue resistance of ingot iron, SAE 1045 and 2340 steels, 75S-T6 aluminum alloy and annealed 70-30 brass. The results of this study seem to indicate that the coaxing effect in fatigue is governed by a time-dependent localized strengthening through strain-aging and not by the ability of the metal to be strengthened by cold work.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1952
Accession Number
ADA319638

Entities

People

  • G. M. Sinclair

Organizations

  • University of Illinois Urbana–Champaign

Tags

DTIC Thesaurus Topics

  • Alloys
  • Aluminum
  • Aluminum Alloys
  • Amplitude
  • Applied Mechanics
  • Cold Working
  • Electron Microscopes
  • Engineering
  • Fatigue Life
  • Fatigue Tests (Mechanics)
  • Heat Treatment
  • Materials
  • Mechanical Working
  • Mechanics
  • Metals
  • Plastic Deformation
  • Resistance

Readers

  • Materials Science (Mechanical Engineering).
  • Metallurgy