Crack Initiation and Propagation in Metals in Liquid Mercury Using Fracture Mechanics.

Abstract

Fracture mechanics is a useful tool in the study of sub-critical crack growth. This report presents a summary of the results of several recent fracture mechanics studies of liquid metal embrittlement. Specific topics include crack growth measurements under cyclic loading conditions in 6061-T651 alloy embrittled by liquid mercury. The effect of mean stress on fatigue crack growth in a high strength-low alloy steel in mercury is discussed. Crack growth studies under static loading conditions at various temperatures in both 6061-T651 aluminum and 70/30 alpha brass embrittled by mercury are also presented. Finally, some experiments on mercury wetted 70/30 alpha brass in Mode III loading (pure shear) are presented. The results are discussed in relation to transport mechanisms. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1983
Accession Number
ADA129555

Entities

People

  • J. A. Kapp

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aluminum Alloys
  • Crack Propagation
  • Crack Tips
  • Cracks
  • Embrittlement
  • Equations
  • Fatigue Tests (Mechanics)
  • Fracture (Mechanics)
  • Frequency
  • Heat Of Activation
  • Liquid Metals
  • Load Control
  • Materials
  • Mechanical Properties
  • Mechanics
  • Military Research
  • Tensile Stress

Readers

  • Materials Science (Mechanical Engineering).