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Preparation of multilayer films on 1Cr17Ni2 stainless steel and its corrosion resistance
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School of Materials Science and Engineering, Nanchang Hangkong University,School of Materials Science and Engineering, Nanchang Hangkong University,School of Materials Science and Engineering, Nanchang Hangkong University

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TG174 2

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    Abstract:

    The Ti/TiN/Zr/ZrN multilayer films were prepared on 1Cr17Ni2 stainless steel by vacuum arc deposition, and the morphologies, phase composition, bonding strength, polarization curve and electrochemical impedance spectroscopy (EIS) of the multilayer films were studied. The results show that the films are mainly composed of TiN and ZrN phases with a few metal Ti and Zr. The multielement interface of the Ti/TiN/Zr/ZrN multilayer films exhibite excellent and dense with a total thickness of 2-3 μm, and the grain size presents uniformity and fine. The bonding strength between the films and the substrate is higher than 70 N. The microhardness of the films is up to 2900 HV0.025. Compared to the uncoated 1Cr17Ni2, the multilayer films possesse higher corrosion potential, higher polarization resistance, larger capacitive reactance arc and lower corrosion current density.

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[luo junming, Zhang Liuxi, HuangJun. Preparation of multilayer films on 1Cr17Ni2 stainless steel and its corrosion resistance[J]. Rare Metal Materials and Engineering,2017,46(2):491~495.]
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History
  • Received:October 25,2014
  • Revised:December 18,2014
  • Adopted:April 10,2017
  • Online: April 10,2017
  • Published: