Accession Number:

ADA256998

Title:

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

Descriptive Note:

Final rept. 15 April 1989-30 June 1992

Corporate Author:

COLORADO SCHOOL OF MINES GOLDEN CENTER FOR WELDING AND JOINING RESEARCH

Personal Author(s):

Report Date:

1992-08-01

Pagination or Media Count:

22.0

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.

Subject Categories:

  • Fabrication Metallurgy
  • Structural Engineering and Building Technology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE