Effect of corrosive medium on the corrosion resistance of FeCrMoCB amorphous alloy coating

被引：9
作者：
Chen, Qingjun [1 ]
Hu, Linli [1 ]
Zhou, Xianliang [1 ]
Hua, Xiaozhen [1 ]
Yang, Yingjun [2 ]
机构：
[1] Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 330063, Jiangxi, Peoples R China
[2] Aviat Univ Air Force, Dept Aeronaut Mech Engn, Changchun 130022, JiLin, Peoples R China
来源：
MATERIALS PROCESSING TECHNOLOGY, PTS 1-4 | 2011年 / 291-294卷
基金：
中国国家自然科学基金;
关键词：
HVOF; potentiodynamic polarization curves; EIS; AQUEOUS ENVIRONMENTS; BEHAVIOR; FILM; TITANIUM;
D O I：
10.4028/www.scientific.net/AMR.291-294.65
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The purpose of this study is to investigate the electrochemical properties of Fe44Cr16Mo16C18B6 amorphous alloy coating fabricated using high velocity oxygen fuel (HVOF) technology in 2.0M HCl and NaOH solution at room temperature(25 degrees C). Based on the potentiodynamic polarization curves and Electrochemical Impedance Spectroscopy(EIS) testing results of coating in aqueous solutions of HCl and NaOH, the corrosion resistance of Fe44Cr16Mo16C18B6 amorphous alloy coating in HCl solution was superior to that in NaOH solution. The i(corr) was 1.487x10(-5)A.cm(-2) in HCl solution and 1.107x10(-4)A.cm(-2) in NaOH solution, while the R-t reach to 5.789x10(4)Omega.cm(2) and 9780 Omega.cm(2), respectively. On the other hand, these corrosion phenomenon could be better interpreted by R(Q(R(RQW)))(RL) and R(RL)(Q(R(CW))) equivalent circuit model, which were different from that of other Fe-based amorphous alloys in HCl and NaOH solution, respectively.
引用
收藏
页码：65 / +
页数：2
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