STRESS-CORROSION CRACKING OF HIGH-STRENGTH ALLOYS

Abstract

Test results showed that, under all the test conditions of this program, the 6A1-4V titanium alloy is immune to stress-corrosion cracking in the annealed, quenched-and-aged, and as-welded conditions. The 20%-nickel grade of maraging steel was found to be highly susceptible to stress-corrosion cracking in the annealed-and aged condition. This same alloy, when cold worked 50 to 75% before aging, was found to be only mildly susceptible to stress- corrosion cracking. The most favorable mechanical proper ties were attained after 50% cold reduction and subsequent aging. The welded-and-aged alloy was found to be extremely susceptible to stress corrosion cracking in the weld-heat- affected zone. The 18%-nickel grade of maraging steel was also found to be susceptible to stress-corrosion cracking, which was found to occur more rapidly in the annealed-and-aged material than in the 50% cold-worked-and-aged material.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1963
Accession Number
AD0405898

Entities

People

  • R. B. Setterlund

Organizations

  • Aerojet Rocketdyne Holdings

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Alkenes
  • Electron Microscopes
  • Environment
  • Failure Mode And Effect Analysis
  • High Humidity
  • High Strength Alloys
  • Maraging Steels
  • Materials
  • Mechanical Properties
  • Nickel Steels
  • Rocket Engines
  • Salt Water
  • Stress Corrosion
  • Stress Corrosion Cracking
  • Test And Evaluation
  • Titanium Alloys
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Metallurgy