FRACTURE TOUGHNESS AND STRESS CORROSION CHARACTERISTICS OF ULTRAHIGH- STRENGTH 4340 STEEL - SUMMARY REVIEW

Abstract

A review was made of the fracture toughness (K sub Ic) and stress corrosion (K sub Iscc) characteristics of 4340 steel within the 200 to 250 ksi yield strength range. This literature review was conducted in support of a fracture mechanics and environmental investigation of 4340 steel for the control section housing of the Copperhead CLGP (Cannon-Launched Guided Projectile) weapon system. Factors affecting toughness and corrosion cracking characteristics are considered. Also included are data pertaining to the damaging effects of humidity. Fracture toughness and stress corrosion cracking resistance of 4340 steel are usually higher in the alloys possessing lower yield strengths.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1979
Accession Number
ADA066814

Entities

People

  • Anthony K. Wong
  • Milton Levy
  • Walter F. Czyrklis

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Chemistry
  • Corrosion
  • Engineering
  • Ferrium
  • Fracture (Mechanics)
  • Governments
  • Guided Missiles
  • Guided Projectiles
  • Heat Treatment
  • Hydrogen Sulfides
  • Materials
  • Mechanical Properties
  • Mechanics
  • Resistance
  • Stress Corrosion Cracking
  • Tensile Properties
  • Tensile Strength

Fields of Study

  • Engineering

Readers

  • Materials Science (Mechanical Engineering).
  • Materials Science and Engineering.
  • ballistics.