• A framework for predicting the local stress-strain behaviors of additively manufactured multiphase alloys in the sequential layers 

      Liu, Siqi; Lin, Meichao; Wang, Xu; Fu, Yuequn; Ren, Xiaobo; Zhang, Zhiliang; He, Jianying (Peer reviewed; Journal article, 2022)
      The additive manufacturing (AM) process often results in non-uniform microstructure and different mechanical properties in sequential layers, impacting the overall performance of the AM-ed component. However, it is extremely ...
    • Fundamental Mechanisms of Ice Adhesion 

      Rønneberg, Sigrid (Doctoral theses at NTNU;2020:87, Doctoral thesis, 2020)
      Uønsket isdannelse skaper bade daglige problemer og farlige situasjoner hvert år. Heldigvis er det måter å hindre slik uønsket ising. Overflater med lav isvedheft, der isen sklir rett av overflaten, er en lovende metode ...
    • Gels as emerging anti-icing materials: a mini review 

      Zhuo, Yizhi; Chen, Jianhua; Xiao, Senbo; Li, Tong; Wang, Feng; He, Jianying; Zhang, Zhiliang (Peer reviewed; Journal article, 2021)
      Gel materials have drawn great attention recently in the anti-icing research community due to their remarkable potentials for reducing ice adhesion, inhibiting ice nucleation, and restricting ice propagation. Although the ...
    • Giant Stretchability and Reversibility of Tightly Wound Helical Carbon Nanotubes 

      Wu, Jianyang; He, Jianying; Odegard, Gregory; Nagao, Shijo; Zheng, Quanshui; Zhang, Zhiliang (Journal article; Peer reviewed, 2013)
      There is a surging interest in 3D graphitic nanostructures which possess outstanding properties enabling them to be prime candidates for a new generation of nanodevices and energy-absorbing materials. Here we study the ...
    • Grain refinement of Ti6Al4V by incorporating in-situ TiB nanowhiskers in laser melting deposition 

      Fu, Ke; liu, yuyu; Wang, Yeqing; Xu, Zhe; Jiang, Wei; Chen, Zheng; Liu, Siqi; Sun, Li; Zhang, Zhiliang; He, Jianying (Journal article; Peer reviewed, 2023)
      One of the known problems in laser melting deposition (LMD) of alloys is columnar grain morphology and large grain size. Adding reinforcements is generally suggested as a viable approach to tailor the microstructure and ...
    • Grain-size Controlled Mechanical Properties of Polycrystalline Monolayer MoS2 

      Wu, Jianyang; Cao, Pinqiang; Zhang, Zhisen; Ning, Fulong; Zheng, Songsheng; He, Jianying; Zhang, Zhiliang (Journal article, 2018)
      Pristine monocrystalline molybdenum disulphide (MoS2) possesses high mechanical strength comparable to that of stainless steel. Large-area chemical-vapor-deposited monolayer MoS2 tends to be polycrystalline with intrinsic ...
    • Grain-size Induced Strengthening and Weakening of Dislocation-free Polycrystalline Gas Hydrates 

      Wu, Jianyang; Skallerud, Bjørn Helge; He, Jianying; Zhang, Zhiliang (Journal article; Peer reviewed, 2017)
      Sediment-hosted gas hydrates have profound impacts on global energy sources and climate change. Their mechanical properties play a crucial role in gas recovery and understanding their evolution in nature, however, the ...
    • Heat transfer characteristics of CO2 condensation on common heat exchanger materials, method development and experimental results 

      Snustad, Ingrid; Ervik, Åsmund; Austegard, Anders; Brunsvold, Amy; He, Jianying; Zhang, Zhiliang (Peer reviewed; Journal article, 2021)
      Understanding condensation of CO2 is essential for e.g designing compact heat exchangers or processes involved in Carbon Capture and Storage. However, a consistent experimental campaign for condensation of CO2 on common ...
    • 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 ...
    • Hydrogen embrittlement in steels: predictive models and integrity assessment 

      Lin, Meichao (Doctoral theses at NTNU;2023:123, Doctoral thesis, 2023)
      Hydrogen embrittlement (HE) is a well-recognized challenge as it can degrade the mechanical properties of most structural steels, leading to premature failure of hydrogen infrastructures. Continuum scale simulation is an ...
    • Hydrogen informed Gurson model for hydrogen embrittlement simulation 

      Yu, Haiyang; Olsen, Jim Stian; Alvaro, Antonio; qiao, lijie; He, Jianying; Zhang, Zhiliang (Journal article; Peer reviewed, 2019)
      Hydrogen-microvoid interactions were studied via unit cell analyses with different hydrogen concentrations. The absolute failure strain decreases with hydrogen concentration, but the failure loci were found to follow the ...
    • 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. ...
    • Hydrogen-microvoid interactions at continuum scale 

      Yu, Haiyang; Olsen, Jim Stian; He, Jianying; Zhang, Zhiliang (Journal article; Peer reviewed, 2018)
      Experimentally, it has been shown that hydrogen can either enhance the internal necking failure or induce internal shearing failure of microvoids. In this study, the numerical investigation of hydrogen-microvoid interactions ...
    • Implementation of the Arruda-Boyce Material Model for Polymers in Abaqus 

      Tømmernes, Vegard (Master thesis, 2014)
      In this Master s thesis, a user material subroutine for polymers is imple- mented in the FEA-program, Abaqus. The first part of the thesis provides an overview of large deformation mechanics and the Arruda-Boyce con- ...
    • Influence of Dissipative Cohesive Zone Law on Hydrogen Embrittlement 

      Islam, Sunny (Master thesis, 2016)
      The dissipative cohesive zone model of Gao was applied with the hydrogen transport model established by Sofronis to approximate a cracked geometry subject to constant load and hydrogen embrittlement. The model assumed small ...
    • Insight into the Pressure-induced Displacement Mechanism for Selecting Efficient Nanofluids in Various Capillaries 

      Wang, Xiao; Zhang, Zhiliang; Zhang, Jun; He, Jianying (Journal article; Peer reviewed, 2020)
      Designing fluids to regulate two-phase displacement has been of great interest because of its roles in groundwater remediation, oil recovery and water desalination. Currently, the displacement efficiency of fluids is ...
    • An interfacial gas-enrichment strategy for mitigating hydrate adhesion and blockage 

      Ma, Rui; Xiao, Senbo; Chang, Yuanhao; Fu, Yuequn; He, Jianying; Zhang, Zhiliang (Peer reviewed; Journal article, 2022)
      Unwanted gas hydrates blockage is a threat to the safety of oil-gas pipeline systems. Deploying passive anti-hydrate surfaces is a promising approach to circumventing the long-lasting hydrate problem, and a precise ...