Journal
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
Volume 21, Issue 6, Pages 630-636Publisher
JOURNAL IRON STEEL RESEARCH EDITORIAL BOARD
DOI: 10.1016/S1006-706X(14)60098-4
Keywords
stainless steel; cyclic voltammetry; EIS; XPS; passive film; 00Cr13Ni5Mo2
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Funding
- Science and Technology Projects from Xi'an City of China [CX1261(5)]
- Fund of State Key Laboratory of Solidification Processing in NWPU of China [SKLSP201322]
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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 10(20)-10(21) 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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