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Nano-phases and corrosion resistance of C+Mo dual implanted steel

  • Tonghe Zhang
  • Yuguang Wu
  • Zhongzhen YI
  • Xu Zhang
  • Xiaoyan Wang
Article

Abstract

The corrosion resistance of C+Mo dual-implanted H13 steel was studied using multisweep cyclic voltammetry. The phase formation conditions for corrosion resistance and its effects were researched. The super-saturation solid station solution of Mo+ and C+ atoms was formed in Mo+C dual implanted steel. Precipitate phase with nanometer size Fe2Mo, FeMo, MoC, Fe5C3 and Fe7C3 were formed in dual implanted layer. The passivation layer consisted of these nanometer phases. The corrosion resistance of the dual implanted layer was better than that of single Mo implantation.J p of the Mo implanted sample is 0.55 times that of H13 steel. The corrosion resistance of the dual implantation was enhanced when ion dose increased. When the Mo+ ion dose was 6×1017/cm2 in the dual implantation,J p of the dual implanted sample was only 0.11 times that in H13 steel. What is important is that pitting corrosion properties of dual implanted steel were improved obviously.

Keywords

tungsten plus carbon dual implantation corrosion resistance electrochemical measurement 

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Copyright information

© Science in China Press 2001

Authors and Affiliations

  • Tonghe Zhang
    • 1
  • Yuguang Wu
    • 1
  • Zhongzhen YI
    • 1
  • Xu Zhang
    • 1
  • Xiaoyan Wang
    • 1
  1. 1.Radiation Beam Technology & Material Modification Key Laboratory, Beijing Normal University, Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing Radiation CenterBeijingChina

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