Gravitational effects on the gas tungsten arc welds of 304 stainless steels

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Abstract

Gravitational effects on gas tungsten arc welding (GTAW) of 304 stainless steels were studied to determine the behavior of the weld pool geometry, and its impact on microstructure and solute distribution. This was accomplished through both a KC-135 flight experiment and a ground-based experiment. Gravitational level variation from low gravity (LG) (∼1.2 g) to high gravity (HG) (∼1.8 g) caused a 10% increase in weld width and a 10% decrease in depth, while maintaining the overall weld pool volume. Regardless of the gravitational level, the ferrite content and the solutes (Cr and Ni) distribution in the duplex microstructure remained constant within the measurement scatter.

Original languageEnglish (US)
Pages (from-to)549-561
Number of pages13
JournalMaterials and Manufacturing Processes
Volume18
Issue number4
DOIs
StatePublished - Jul 1 2003

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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