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Volume 9 Issue 1
Feb.  2002
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Zhongji Li, Jinxu Li, Wuyang Chu, Hui Liu,  and Lyie Qiao, Molecular Dynamics Simulation and Experimental Proof of Hydrogen-enhanced Dislocation Emission in Nickel, J. Univ. Sci. Technol. Beijing, 9(2002), No. 1, pp. 59-64.
Cite this article as:
Zhongji Li, Jinxu Li, Wuyang Chu, Hui Liu,  and Lyie Qiao, Molecular Dynamics Simulation and Experimental Proof of Hydrogen-enhanced Dislocation Emission in Nickel, J. Univ. Sci. Technol. Beijing, 9(2002), No. 1, pp. 59-64.
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Materials

Molecular Dynamics Simulation and Experimental Proof of Hydrogen-enhanced Dislocation Emission in Nickel

  • 通讯作者:

    Wuyang Chu    E-mail: lqiao@ustb.edu.cn

  • A quasi three dimensions molecular dynamic method was used to simulate the effect of hydrogen on dislocation emission and crack propagation in nickel. In situ observation in a transmission electron microscope (TEM) was used to confirm the simulation results. The simulation result indicated that hydrogen solubilized in nickel decreased the critical stress intensity for the dislocation emission, i.e., hydrogen enhanced dislocation emission. In situ observation in TEM showed that hydrogen enhanced dislocation emission and motion before the initiation of hydrogen-induced crack.
  • Materials

    Molecular Dynamics Simulation and Experimental Proof of Hydrogen-enhanced Dislocation Emission in Nickel

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