Use of Liquid Metal Embrittlement (LME) for Controlled Fracture

Abstract

A concept is described for using liquid metal embrittlement (LME) to cause fracture of steel. Three different approaches are taken to break the metal, all based on putting the liquid metal (LM) into a surface notch (or groove) and applying stress. Some success was achieved in breaking the metal in quasi-static tests of flat samples. However, for dynamic tests of flat samples, as well as tests of a specific cylindrical configuration, brittle fracture was not achieved.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2009
Accession Number
AD1090489

Entities

People

  • Daniel J. Snoha
  • David M. Gray
  • James C. Hirvonen
  • Jonathan S. Montgomery
  • Laszlo J Kecskes
  • William S. de Rosset

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Ceramic Materials
  • Coatings
  • Drop Tests
  • Dynamic Tests
  • Electron Microscopes
  • Elements
  • Embrittlement
  • Energy Bands
  • Engineering
  • Explosives
  • Failure Mode And Effect Analysis
  • Fragmentation
  • Grinding Wheels
  • Liquid Metals
  • Liquids
  • Materials
  • Measurement
  • Mechanics
  • Metals
  • Military Research
  • Physical Theories
  • Reactive Materials
  • Static Tests
  • Tensile Stress

Readers

  • Geodesy
  • Metallurgy
  • Structural Health Monitoring of Composite Structures.