Browsing NTNU Open by Author "Ding, Yu"

Now showing items 1-11 of 11

    • Atomic Insights into Hydrogen-Grain Boundary Interactions 

      Ding, Yu (Doctoral theses at NTNU;2023:120, Doctoral thesis, 2023)
      Derived from the most abundant element in the universe, hydrogen is the smallest element and, at the same time, a clean, mobile, and efficient energy carrier. Nowadays, hydrogen is regarded as the fuel of future and could ...

    • The dual role of hydrogen in grain boundary mobility 

      Ding, Yu; Zhao, Kai; Lin, Meichao; Yu, Haiyang; Xiao, Senbo; He, Jianying; Zhang, Zhiliang (Peer reviewed; Journal article, 2023)
      ABSTRACT The effect of solute hydrogen on shear-coupled grain boundary (GB) migration is investigated with the dislocation-array type Σ25(430)[001] GB and a dual role of hydrogen on GB mobility is unraveled. In the low ...

    • 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 trapping and diffusion in polycrystalline nickel: the spectrum of grain boundary segregation 

      Ding, Yu; Yu, Haiyang; Lin, Meichao; Ortiz, Michael; Xiao, Senbo; He, Jianying; Zhang, Zhiliang (Peer reviewed; Journal article, 2024)
      Hydrogen as an interstitial solute at grain boundaries (GBs) can have a catastrophic impact on the mechanical properties of many metals. Despite the global research effort, the underlying hydrogen-GB interactions in ...

    • Hydrogen trapping and diffusion in polycrystalline nickel: the spectrum of grain boundary segregation 

      Ding, Yu; Yu, Haiyang; Lin, Meichao; Ortiz, Michael; Xiao, Senbo; He, Jianying; Zhang, Zhiliang (Peer reviewed; Journal article, 2023)
      Hydrogen as an interstitial solute at grain boundaries (GBs) can have a catastrophic impact on the mechanical properties of many metals. Despite the global research effort, the underlying hydrogen-GB interactions in ...

    • Hydrogen-enhanced grain boundary vacancy stockpiling causes transgranular to intergranular fracture transition 

      Ding, Yu; Yu, Haiyang; Lin, Meichao; Zhao, Kai; Xiao, Senbo; Vinogradov, Alexei; Qiao, Lijie; Ortiz, Michael; He, Jianying; Zhang, Zhiliang (Journal article; Peer reviewed, 2022)
      The attention to hydrogen embrittlement (HE) has been intensified recently in the light of hydrogen as a carbon-free energy carrier. Despite worldwide research, the multifaceted HE mechanism remains a matter of debate. ...

    • Hydrogen-induced transgranular to intergranular fracture transition in bi-crystalline Nickel 

      Ding, Yu; Yu, Haiyang; Zhao, Kai; Lin, Meichao; Xiao, Senbo; Ortiz, Michael; He, Jianying; Zhang, Zhiliang (Peer reviewed; Journal article, 2021)
      It is known that hydrogen can influence the dislocation plasticity and fracture mode transition of metallic materials, however, the nanoscale interaction mechanism between hydrogen and grain boundary largely remains illusive. ...

    • A microstructure informed and mixed-mode cohesive zone approach to simulating hydrogen embrittlement 

      Lin, Meichao; Yu, Haiyang; Wang, Xu; wang, ruijun; Ding, Yu; Alvaro, Antonio; Olden, Vigdis; He, Jianying; Zhang, Zhiliang (Peer reviewed; Journal article, 2022)
      Hydrogen induced failure under uniaxial tension is simulated in a duplex stainless steel considering microstructural feature of the material. There are three key ingredients in the modelling approach: image processing and ...

    • A microstructure informed and mixed-mode cohesive zone approach to simulating hydrogen embrittlement 

      Lin, Meichao; Yu, Haiyang; Wang, Xu; wang, ruijun; Ding, Yu; Alvaro, Antonio; Olden, Vigdis; He, Jianying; Zhang, Zhiliang (Peer reviewed; Journal article, 2022)
      Hydrogen induced failure under uniaxial tension is simulated in a duplex stainless steel considering microstructural feature of the material. There are three key ingredients in the modelling approach: image processing and ...

    • A predictive model unifying hydrogen enhanced plasticity and decohesion 

      Lin, Meichao; Yu, Haiyang; Ding, Yu; Wang, Gang; Olden, Vigdis; Alvaro, Antonio; He, Jianying; Zhang, Zhiliang (Peer reviewed; Journal article, 2022)
      The detrimental effect of hydrogen on metals which manifests itself as a transition from a ductile to a brittle failure mode is, for the first time, incorporated into a unified continuum-scale predictive framework. The ...

    • Simulation of ductile-to-brittle transition combining complete Gurson model and CZM with application to hydrogen embrittlement 

      Lin, Meichao; Yu, Haiyang; Ding, Yu; Olden, Vigdis; Alvaro, Antonio; He, Jianying; Zhang, Zhiliang (Journal article; Peer reviewed, 2022)
      A general simulation framework for modelling ductile-to-brittle transition in metals is proposed. The method combines the complete Gurson model and cohesive zone model, which brings ductile and brittle fracture mechanisms ...