INVESTIGATION OF STRESS-CORROSION CRACKING OF HIGH-STRENGTH ALLOYS

Abstract

Six high-strength alloys were evaluated for stress-corrosion susceptibility in environments representative of those environments to which the alloys are normally exposed during the manufacture, hydrostatic testing, and storage of solid-rocket-motor cases. The alloys were heat-treated or cold-rolled to yield strengths ranging from 194,000 to 278,000 psi. The environmental stress-corrosion studies were conducted with bent-beam and U-bend specimens, with the bent-beam specimens stressed to 75% of the yield strength. Significant failures were observed with the Ladish D6AC, Type 300M, and Vascojet 1000 alloy steels in the environments of distilled water, tap water, salt water, and high humidity. The Vascojet 1000 alloy was the most susceptible to stress-corrosion failure. No failures were observed with any of the other environments or alloys tested.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1961
Accession Number
AD0264660

Entities

People

  • R. B. Robinson
  • R. J. Uzdarwin

Organizations

  • Aerojet Rocketdyne Holdings

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Alloys
  • Chemistry
  • Hardness
  • High Humidity
  • High Strength Alloys
  • Materials
  • Mechanical Properties
  • Mechanical Working
  • Pressure Vessels
  • Rocket Engines
  • Salt Water
  • Sodium Compounds
  • Stainless Steel
  • Stresses
  • Test And Evaluation
  • Titanium Alloys
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.