4D characterization of the stress corrosion cracking behavior in Al-10Mg aluminium alloy via synchrotron X-ray tomography

Dongsheng Fu, Hiroyuki Toda, Hang Su, Kyosuke Hirayama, Kentaro Uesugi, Akihisa Takeuchi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Stress corrosion cracking (SCC) behavior of Al-10Mg aluminium alloys is studied with the help of the high resolution X-ray tomography in the present research. The SCC-induced crack is formed from the corrosion pit near the surface, and gradually propagates and coalescence with the voids due to the fracture of β phase ahead of the crack tip at low applied strain levels. In addition, hydrogen concentration in the ligament between the SCC-induced crack tip and voids accelerates the propagation of the crack, indicating that hydrogen concentration and partitioning among various trap sites dominates the SCC and entire fracture of Al-10Mg aluminium alloys.

Original languageEnglish
Title of host publicationProceedings of the 29th International Ocean and Polar Engineering Conference, ISOPE 2019
EditorsJin S. Chung, Odd M. Akselsen, HyunWoo Jin, Hiroyasu Kawai, Yongwon Lee, Dmitri Matskevitch, Suak Ho Van, Decheng Wan, Alan M. Wang, Satoru Yamaguchi
PublisherInternational Society of Offshore and Polar Engineers
Pages4199-4203
Number of pages5
ISBN (Print)9781880653852
Publication statusPublished - Jan 1 2019
Event29th International Ocean and Polar Engineering Conference, ISOPE 2019 - Honolulu, United States
Duration: Jun 16 2019Jun 21 2019

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
Volume4
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Conference

Conference29th International Ocean and Polar Engineering Conference, ISOPE 2019
CountryUnited States
CityHonolulu
Period6/16/196/21/19

All Science Journal Classification (ASJC) codes

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

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  • Cite this

    Fu, D., Toda, H., Su, H., Hirayama, K., Uesugi, K., & Takeuchi, A. (2019). 4D characterization of the stress corrosion cracking behavior in Al-10Mg aluminium alloy via synchrotron X-ray tomography. In J. S. Chung, O. M. Akselsen, H. Jin, H. Kawai, Y. Lee, D. Matskevitch, S. Ho Van, D. Wan, A. M. Wang, & S. Yamaguchi (Eds.), Proceedings of the 29th International Ocean and Polar Engineering Conference, ISOPE 2019 (pp. 4199-4203). (Proceedings of the International Offshore and Polar Engineering Conference; Vol. 4). International Society of Offshore and Polar Engineers.