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| Corrosion Resistance and Semiconducting Properties of Passive Films Formed on 00Cr13Ni5Mo2 Supermartensitic Stainless Steel in Cl- Environment |
| De-ning ZOU1,Rong LIU1,Jiao LI1,Wei ZHANG2,Duo WANG1,Ying HAN2,3 |
1. School of Metallurgy and Engineering, Xi��an University of Architecture and Technology, Xi��an 710055,Shaanxi, China
2. State Key Laboratory for Mechanical Behavior of Materials, Xi��an Jiaotong University,Xi��an 710049, Shaanxi, China
3. Key Laboratory of Advanced Structural Materials of Ministry of Education,Changchun University of Technology, Changchun 130012, Jilin, China |
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Abstract The semiconducting properties of passive films grown on 00Cr13Ni5Mo2 supermartensitic stainless steel were investigated in comparison with conventional 2Cr13 martensitic stainless steel. Cyclic voltammetry and electrochemical impedance spectroscopy (EIS) were used for the studies. 00Cr13Ni5Mo2 steel exhibited a good corrosion resistance performance, attributing to its passive capability. The results of Mott-Schottky analysis demonstrated n-type semiconductors for the passive films with doping densities of about 1020-1021 cm-3, and the thickness of space-charge layers was also calculated. The experimental results confirmed that Mo plays an important role in improving the corrosion resistance of 00Cr13Ni5Mo2 steel due to its impact on the doping density.
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Received: 31 May 2013
Published: 05 June 2014
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| Fund:Project guided by science and technology in Inner Mongolia Autonomous Region;Project guided by science and technology in Inner Mongolia Autonomous Region |
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Corresponding Authors:
Ying Han
E-mail: hanying.xjtu@gmail.com
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2014, Vol. 21 
