Toughness of the very low oxygen steel weld metal

Yoshihiro Sato, Tsuyoshi Maie, Hiroyuki Kokawa, Takeshi Kuwana

Research output: Contribution to conferencePaper

Abstract

Effect of very low oxygen on the Si-Mn steel weld metal toughness is investigated to look for a possibility of the improvement of steel weld metal toughness. The Charpy V-notch impact test for the different oxygen steel weld metal with as-welded condition was carried out over the temperature range of 213 to 333 K. Very low oxygen content weld metal which containing less than 0.0025 mass% oxygen shows the same impact values at upper shelf region and revealed good impact toughness at the transient region compared with low oxygen content weld metal containing between 0.015 to 0.027 mass% oxygen. The ductile-brittle transition temperature (DBTT) for the very low oxygen steel weld metal was lower 10 to 20 degrees. The superior toughness of the very low oxygen weld metal seems to depend on the less microstructural component of the upper bainite.

Original languageEnglish
Pages353-358
Number of pages6
Publication statusPublished - 1997 Jan 1
EventProceedings of the 1997 16th International Conference on Offshore Mechanics and Arctic Engineering. Part 1-B (of 6) - Yokohama, Jpn
Duration: 1997 Apr 131997 Apr 17

Other

OtherProceedings of the 1997 16th International Conference on Offshore Mechanics and Arctic Engineering. Part 1-B (of 6)
CityYokohama, Jpn
Period97/4/1397/4/17

ASJC Scopus subject areas

  • Ocean Engineering
  • Energy Engineering and Power Technology
  • Mechanical Engineering

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  • Cite this

    Sato, Y., Maie, T., Kokawa, H., & Kuwana, T. (1997). Toughness of the very low oxygen steel weld metal. 353-358. Paper presented at Proceedings of the 1997 16th International Conference on Offshore Mechanics and Arctic Engineering. Part 1-B (of 6), Yokohama, Jpn, .