Advanced titanium oxide steel with excellent HAZ toughness for offshore structures

Kazuhiro Fukunaga, Rikio Chijiiwa, Yoshiyuki Watanabe, Akihiko Kojima, Yoshihide Nagai, Nobuhiko Mamada, Toshihiko Adachi, Akihiro Date, Syunsuke Taniguchi, Ryuji Uemori, Seiji Nishimura

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

1 引用 (Scopus)

抜粋

The feature of titanium oxide steel (Ti-O steel) is that heat affected zone (HAZ) toughness is improved due to the refinement of HAZ microstructure through the formation of intragranular ferrite (IGF). This desirable microstructure, IGF, forms radially from titanium oxide particles. Recently, it has been clarified that manganese in Ti-O steel is an indispensable element for the formation of IGF. Therefore, manganese effects on Ti-O steel have been basically studied in this work, and then a new effect has been found. In Ti-O steel, manganese has the effect of suppressing the formation of ferrite side plates (FSP), which are undesirable due to their coarseness. Consequently, HAZ microstructure of Ti-O steel with high manganese content is so refined that HAZ toughness is remarkably improved. Based on the manganese effects, steel plates with excellent HAZ toughness for offshore structures have been developed and commercially mass-produced. The welded joints exhibit excellent toughness.

元の言語英語
ホスト出版物のタイトルASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2010
ページ63-71
ページ数9
DOI
出版物ステータス出版済み - 12 1 2010
外部発表Yes
イベントASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2010 - Shanghai, 中国
継続期間: 6 6 20106 11 2010

出版物シリーズ

名前Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
6

その他

その他ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2010
中国
Shanghai
期間6/6/106/11/10

All Science Journal Classification (ASJC) codes

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

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  • これを引用

    Fukunaga, K., Chijiiwa, R., Watanabe, Y., Kojima, A., Nagai, Y., Mamada, N., Adachi, T., Date, A., Taniguchi, S., Uemori, R., & Nishimura, S. (2010). Advanced titanium oxide steel with excellent HAZ toughness for offshore structures. : ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2010 (pp. 63-71). (Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE; 巻数 6). https://doi.org/10.1115/OMAE2010-20319