STRESS CORROSION CRACKING IN HIGH STRENGTH FERROUS ALLOYS

Abstract

This paper describes tests performed to investigate the stress corrosion cracking of AISI Type 4340 steel in the 260,000 to 292,000 psi strength range. Various protective coatings were evaluated comparatively on the basis of a sustained axial tensile load equivalent to 70% of the ultimate strength. Round, tensile-type specimens tested the coatings as applied to a machined or shot-peened surface by alternate immersion in 5% salt water. The results indicated that the peened surface had more resistance to cracking than the machined surface.

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Document Details

Document Type
Technical Report
Publication Date
Nov 04, 1963
Accession Number
AD0423387

Entities

People

  • E. W. Turns
  • F. C. Nordquist
  • J. F. Hildebrand

Organizations

  • General Dynamics

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Alloys
  • Coatings
  • Films
  • Heat Treatment
  • Iron Alloys
  • Materials
  • Materials Laboratories
  • Solid Lubricants
  • Stainless Steel
  • Steel
  • Stress Corrosion
  • Stress Corrosion Cracking
  • Stress Tests
  • Tensile Strength
  • Test Fixtures
  • United States

Fields of Study

  • Materials science

Readers

  • Environmental Engineering.
  • Mechanical Engineering/Mechanics of Materials.
  • Structural Health Monitoring of Composite Structures.