CONTROL OF STRESS CORROSION

Abstract

This study of the control of stress corrosion cracking susceptibility of steels by application of protective coatings was designed to use abrasive blasted specimens to simulate more nearly the surfaces and conditions of a manufacturing operation. Initial work was conducted using specimens of aircraft quality 4130 alloy sheet steel, heat treated to 200,000 psi yield strength. Zinc was chosen as protective coating and was applied to abrasive blasted bent beam specimens in three forms: by zinc electroplating, zinc phosphatizing, and by zinc dust dispersion. Coated bent beam specimens, tensile loaded at 75% of yield strength were placed in high humidity and in semi-industrial outdoor exposure. Control specimens in "as heat treated" condition have failed in both atmospheres. Tests are continuing.

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Document Details

Document Type
Technical Report
Publication Date
Nov 26, 1963
Accession Number
AD0432320

Entities

People

  • R. H. Wolff

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Coatings
  • Contracts
  • Environment
  • Governments
  • High Humidity
  • Jet Propulsion
  • Materials
  • Materials Laboratories
  • Military Research
  • New York
  • Ordnance Laboratories
  • Stress Corrosion
  • Stress Corrosion Cracking
  • Tuning Forks
  • Virginia
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Explosive Engineering.
  • Materials Science and Engineering.