A Study of the Minimization of the Adverse Effects of Chrome Plating on the Fatigue Life of AISI 4340 Steel and the Correlation of Fatigue and Elastic Limits

Abstract

The effect of shot-peening prior to and baking after chrome plating AIBI 4340 steel was investigated at strength levels up to 295,000 psi. It was found that this treatment had excellent beneficial effects on the fatigue limits of chrome plated 4340 steel at all the strength levels likely to be used in aircraft construction. It was determined that there was no relationship between the fatigue limits and any of the other mechanical properties of the plated steel. In the case of the unplated steel, it was established that there was a definite straight-line functional correlation between the fatigue limit to elastic limit ratios and the tensile strength levels of the steel.

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Document Details

Document Type
Technical Report
Publication Date
Jul 20, 1959
Accession Number
ADA033209

Entities

People

  • Joseph Viglione

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Base Metal
  • Corrosion
  • Corrosion Resistance
  • Fatigue Life
  • Fatigue Tests (Mechanics)
  • Ferrium
  • Materials
  • Materials Laboratories
  • Mechanical Properties
  • Metals
  • Shot Peening
  • Standards
  • Steel
  • Tensile Strength
  • Test And Evaluation
  • Yield Strength

Readers

  • Approximation Theory.
  • Materials Science and Engineering.