FRACTURE OF METALS

Abstract

Studies are in progress toward understanding the mechanism of delayed failure in the presence of low-melting liquid metals. Experiments utilize age- hardened beryllium copper wetted with mercury. It is shown that during the time delay period between application of sustained stress to wetted samples and the occurrence of failure, cracks can only be detected during the last minute or fraction thereof. The indications are that during the long preceding period, mercury diffuses into the surface developing a state of what is equivalent to surface age hardening.

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Document Details

Document Type
Technical Report
Publication Date
Jul 02, 1963
Accession Number
AD0408604

Entities

People

  • W. Rostoker

Organizations

  • IIT Research Institute

Tags

Communities of Interest

  • Human Systems

DTIC Thesaurus Topics

  • Age Hardening
  • Alloys
  • Chemistry
  • Contracts
  • Curvature
  • Depth
  • Electropolishing
  • Finishes
  • Geometry
  • Hardening
  • Illinois
  • Liquid Metals
  • Mechanical Working
  • Observation
  • Surface Properties
  • Tensile Stress
  • Yield Strength

Readers

  • Materials Science (Mechanical Engineering).
  • Metallurgy
  • Systems Analysis and Design