Hydrogen trapping in X70 structural pipeline steel and weldments

Jean Gabriel Sezgin, Hallvard G. Fjær, Hisao Matsunaga, Junichiro Yamabe, Vigdis Oldeng

研究成果: 著書/レポートタイプへの貢献会議での発言

抄録

Diffusion measurements and thermal desorption measurements have been performed on a X70 pipeline steel, in as received and normalized and quenched condition, after being hydrogen charged for 200 h at 100 MPa hydrogen gas pressure and 85℃. Numerical simulations based on the assumption of thermodynamic equilibrium were performed, aiming to compare the trapping energies when fitting to the TDS spectra. TDS experiments revealed a reversible trap site with activation energy of 26.2 kJ.mol -1 . Irreversible trap sites with an activation energy of >100 kJ.mol- 1 were observed from both as-received and heat-treated condition. In contrast, a reversible trap site with an activation energy of 49.2 kJ.mol -1 was observed only from the heat-treated condition. The numerical modelling based on the assumption of equilibrium between hydrogen in traps and hydrogen in lattice is seen to provide a good fit to the experimental data.

元の言語英語
ホスト出版物のタイトルProceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018
出版者International Society of Offshore and Polar Engineers
ページ228-235
ページ数8
ISBN(印刷物)9781880653876
出版物ステータス出版済み - 1 1 2018
イベント28th International Ocean and Polar Engineering Conference, ISOPE 2018 - Sapporo, 日本
継続期間: 6 10 20186 15 2018

出版物シリーズ

名前Proceedings of the International Offshore and Polar Engineering Conference
2018-June
ISSN(印刷物)1098-6189
ISSN(電子版)1555-1792

その他

その他28th International Ocean and Polar Engineering Conference, ISOPE 2018
日本
Sapporo
期間6/10/186/15/18

Fingerprint

Pipelines
Hydrogen
Steel
Activation energy
Thermal desorption
Thermodynamics
Computer simulation
Gases
Experiments
Hot Temperature

All Science Journal Classification (ASJC) codes

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

これを引用

Sezgin, J. G., Fjær, H. G., Matsunaga, H., Yamabe, J., & Oldeng, V. (2018). Hydrogen trapping in X70 structural pipeline steel and weldments. : Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018 (pp. 228-235). (Proceedings of the International Offshore and Polar Engineering Conference; 巻数 2018-June). International Society of Offshore and Polar Engineers.

Hydrogen trapping in X70 structural pipeline steel and weldments. / Sezgin, Jean Gabriel; Fjær, Hallvard G.; Matsunaga, Hisao; Yamabe, Junichiro; Oldeng, Vigdis.

Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018. International Society of Offshore and Polar Engineers, 2018. p. 228-235 (Proceedings of the International Offshore and Polar Engineering Conference; 巻 2018-June).

研究成果: 著書/レポートタイプへの貢献会議での発言

Sezgin, JG, Fjær, HG, Matsunaga, H, Yamabe, J & Oldeng, V 2018, Hydrogen trapping in X70 structural pipeline steel and weldments. : Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018. Proceedings of the International Offshore and Polar Engineering Conference, 巻. 2018-June, International Society of Offshore and Polar Engineers, pp. 228-235, 28th International Ocean and Polar Engineering Conference, ISOPE 2018, Sapporo, 日本, 6/10/18.
Sezgin JG, Fjær HG, Matsunaga H, Yamabe J, Oldeng V. Hydrogen trapping in X70 structural pipeline steel and weldments. : Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018. International Society of Offshore and Polar Engineers. 2018. p. 228-235. (Proceedings of the International Offshore and Polar Engineering Conference).
Sezgin, Jean Gabriel ; Fjær, Hallvard G. ; Matsunaga, Hisao ; Yamabe, Junichiro ; Oldeng, Vigdis. / Hydrogen trapping in X70 structural pipeline steel and weldments. Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018. International Society of Offshore and Polar Engineers, 2018. pp. 228-235 (Proceedings of the International Offshore and Polar Engineering Conference).
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