-
First Author:
李阳
-
Correspondence Author:
姜周华,李花兵
-
Co author:
姚聪林,白璐,杜鹏飞,陈常勇
-
Journal:
Journal of Materials Engineering and Performance
-
Issue:
12
-
Volume:
29
-
Impact Factor:
2.2
-
DOI number:
10.1007/s11665-020-05303-w
-
Affiliation of Author(s):
东北大学冶金学院
-
Teaching and Research Group:
绿色智能特殊钢冶金研究中心
-
Abstract:
In this work, the effect of Cu addition on the microstructure and corrosion passivation behavior of Sn alloyed ferritic stainless steel in 3.5 wt.% NaCl solution at 30 degrees C was investigated by optical microscope (OM), scanning electron microscope (SEM), energy-dispersion spectrum (EDS), potentiodynamic polarization curve and x-ray photoelectron spectroscopy (XPS). The results indicate that Cu addition has certain effect on grain refinement of ferritic stainless steel. Meanwhile, Cu addition has little influence on the cathodic corrosion process of ferritic stainless steel in 3.5 wt.% NaCl solution but shows beneficial effect on enhancing both the corrosion resistance of steel substrate and its passivation behavior. It has been found that the deposition of Cu particles at the bottom of corrosion pits is responsible for the better corrosion resistance and passivation behavior of ferritic stainless steel. Moreover, there is synergistic effect between Sn and Cu on enhancing the corrosion resistance of ferric stainless steel matrix and improving its passivation behavior in NaCl solution.
-
Key Words:
corrosionferritic stainless steelmicrostructurepassivationSn and Cu alloying
-
Indexed by:
SCI
-
Note:
无
-
Discipline:
Engineering
-
First-Level Discipline:
Metallurgical Engineering
-
Page Number:
8422-8430
-
ISSN No.:
1059-9495
-
Translation or Not:
no
