Browsing Institutt for konstruksjonsteknikk by Author "Díaz, Andrés"

Now showing items 1-4 of 4

    • The effect of plastic deformation on hydrogen diffusion in nickel Alloy 625 

      Lu, Xu; Díaz, Andrés; Ma, Jun; Wang, Dong; He, Jianying; Zhang, Zhiliang; Johnsen, Roy (Peer reviewed; Journal article, 2022)
      Recently, several hydrogen-assisted failures have been reported on different nickel alloys used in the subsea oil and gas industries. It is thus essential to correlate hydrogen uptake and diffusion behavior with stress ...

    • Experimental and numerical study on hydrogen-induced failure of X65 pipeline steel 

      Lin, Meichao; Yu, Haiyang; Wang, Dong; Díaz, Andrés; Alvaro, Antonio; Olden, Vigdis; Koren, Erik Aas; Ding, Yu; He, Jianying; Zhang, Zhiliang (Peer reviewed; Journal article, 2024)
      Hydrogen-induced fracture of X65 pipeline steel under in-situ electrochemical charging is investigated by using in situ slow strain-rate tensile (SSRT) test, hydrogen diffusion test, fractography analysis, and finite element ...

    • Hydrogen Embrittlement as a Conspicuous Material Challenge─Comprehensive Review and Future Directions 

      Yu, Haiyang; Díaz, Andrés; Lu, Xu; Sun, Binhan; Ding, Yu; Koyama, Motomichi; He, Jianying; Zhou, Xiao; Oudriss, Abdelali; Feaugas, Xavier; Zhang, Zhiliang (Peer reviewed; Journal article, 2024)
      Hydrogen is considered a clean and efficient energy carrier crucial for shaping the net-zero future. Large-scale production, transportation, storage, and use of green hydrogen are expected to be undertaken in the coming ...

    • Numerical study of hydrogen influence on void growth at low triaxialities considering transient effects 

      Díaz, Andrés; Alegre, Jesus Manuel; Cuesta, I. I.; Zhang, Zhiliang (Peer reviewed; Journal article, 2019)
      Assuming that hydrogen enhances localised plasticity, as one of the leading mechanisms proposed in the lit- erature, the void growth and coalescence are modified by local softening and ductile failure features depend on ...