The Pyro-Metallurgical, Physical, and Mechanical Behavior of Weldments

Abstract

The physical and chemical behavior of welding consumables were investigated in studies of the titanium and zirconium as grain refining nucleants in aluminum alloys, and studies of the influence of titanium, zirconium and boron additions on oxide inclusion formation and on the nucleation of acicular ferrite in microalloyed steel weld metal. The influence of electrochemical reactions during arc welding on weld metal composition was investigated for direct current welding processes including: covered electrode welding gas-metal-arc welding and gas- tungsten-arc welding. The influence of cover gas composition on the weld metal microstructural formation in gas-metal- arc welds was studied. Also the influence of underwater vet conditions on the weld metal metallurgy and the management of hydrogen in steel including its influence on weld pore formation have been studied.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1992
Accession Number
ADA256998

Entities

People

  • D.l. Olson
  • R.h. Frost

Organizations

  • Colorado School of Mines

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Alloys
  • Aluminum
  • Aluminum Alloys
  • Arc Welding
  • Chemical Reactions
  • Chemistry
  • Direct Current
  • Electrochemical Reactions
  • Elements
  • Gas Metal Arc Welding
  • Gas Tungsten Arc Welding
  • Materials
  • Materials Processing
  • Metallurgy
  • Titanium
  • Weld Metal
  • Welds

Fields of Study

  • Materials science

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Metallurgy
  • Powder metallurgy of Titanium alloys.