RESEARCH ON THE BASIC NATURE OF STRESS CORROSION FOR VARIOUS STRUCTURAL ALLOYS AT ROOM AND ELEVATED TEMPERATURES

Abstract

Program objectives were: (1) to study the effect of microstructure on susceptibility to stress corrosion cracking in the short-transverse direction of 7075-T6 aluminum alloy; and (2) to study the kinetics of stress-corrosion cracking at elevated temperature of candidate materials for structural applications in the trisonic transport in the presence of sea salt. It was hypothesized that the poor resistance to stress corrosion of high-strength, wrought aluminum alloys was due to the layered-type microstructure characteristic of these materials. Short life was associated with the layered-type of grain structure characteristic of commercial material, and long life was associated with irregular or equiaxed grain structures. The experimental results gave good support to the hypothesis.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1963
Accession Number
AD0405680

Entities

People

  • Frank A. Crossley

Organizations

  • IIT Research Institute

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Alloys
  • Aluminum Alloys
  • Chemical Synthesis
  • Chemistry
  • Corrosion
  • Geometry
  • Grain Boundaries
  • Grain Growth
  • Grain Size
  • Heat Treatment
  • Materials
  • Metals
  • Particles
  • Residual Stress
  • Resistance
  • Stress Corrosion Cracking
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Metallurgy
  • Theoretical Analysis.