Oxide Inclusions in the Weld Pool during Submerged Arc Welding of Low Alloy Steel

Research output: Contribution to conferencePaperpeer-review

2 Scopus citations

Abstract

The composition, size distribution, and number density of oxide inclusions in the weld metal are critical factors in determining weldment properties. A new computational modeling technique is presented in this paper to understand these factors considering the fluid flow and temperature field in weld pool during submerged arc welding (SAW) of low alloy steels. The loci and the corresponding thermal cycles of thousands of oxide inclusions are calculated in the weld pool numerically. The temperature-time history and the computed time-temperature-transformation (TTT) behavior of inclusions were then used to understand the growth and dissolution of oxide inclusions in the weld pool. The statistically meaningful characteristics of inclusion behavior in the weld pool were calculated for several thousand inclusions. The agreement between the computed and the measured size distribution indicates that these parameters can be understood from the fundamentals of transport phenomena and kinetics.

Original languageEnglish (US)
Pages185-190
Number of pages6
StatePublished - Dec 1 1998
EventTrends in Welding Research: Proceedings of the 5th International Conference - Pine Mountain, GA, United States
Duration: Jun 1 1998Jun 5 1998

Other

OtherTrends in Welding Research: Proceedings of the 5th International Conference
CountryUnited States
CityPine Mountain, GA
Period6/1/986/5/98

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanical Engineering

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