Effect of reheating on low temperature toughness of type 308L austenitic stainless steel weld metal - low temperature toughness of austenitic stainless steel weld metal (report 5)

Tadao Onzawa, Akito Takasaki, Masaru Sekiguchi

研究成果: Article査読

抄録

In this study, the heat-treating was done from 923 to 1523K for 2s to 24h. In heat-treating the weld metal with δ ferrite above 2%, the absorbed energy decreased with increasing amount of prior δ ferrite. In the case of treatment at 923K, degradation of absorbed energy was observed. On the other hand, the absorbed energy of fully austenitic weld metal was constant independent of heat-treating time and temperature. In the type 316L weld metal reported previously, the absorbed energy tended to rise slightly by heat-treatment for up to 120s. In Type 308L weld metal, such a tendency was not observed. This is attributed to good coherency of the δ/γ interface compared to Type 316L eutectic δ ferrite weld metal. The decomposition of δ ferrite was slower than that in Type 316L.

本文言語English
ページ(範囲)76-81
ページ数6
ジャーナルYosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society
6
2
出版ステータスPublished - 1988 5 1
外部発表はい

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces, Coatings and Films
  • Metals and Alloys

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