Corrosion behavior of Ti3AlC2 in NaOH and H2SO4

被引：68
|
作者：
Li, Dan [2 ]
Liang, Ying [2 ]
Liu, Xiaoxia [2 ]
Zhou, Yanchun [1 ]
机构：
[1] Chinese Acad Sci, Shenyang Natl Lab Mat Sci, High Performance Ceram Div, Inst Met Res, Shenyang 110016, Peoples R China
[2] Northeastern Univ, Dept Chem, Shenyang 110819, Peoples R China
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2010年 / 30卷 / 15期
关键词：
Ti3AlC2; Corrosion; Electrochemical measurements; XPS; ELECTROCHEMICAL-BEHAVIOR; PASSIVE FILM; TI3SIC2; TI4ALN3; PHASES; TI2ALN; ALLOY; HCL; TI;
D O I：
10.1016/j.jeurceramsoc.2010.07.002
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Passivation behavior, corrosion kinetics and film formation mechanism of Ti3AlC2 in 1 M NaOH and 1 M H2SO4 solutions were investigated by linear potential scan, electrochemical impedance spectroscopy, cyclic voltammetry, SEM and XPS. The corrosion resistance mainly depended on the formation of passivating films on Ti3AlC2 in 1 M NaOH and 1 M H2SO4, which led to different corrosion processes. Ti3AlC2 displayed good corrosion resistance in NaOH due to the formation of dense and protective Ti oxides as the passivating film. However, it exhibited poor corrosion resistance in H2SO4 which attributed to the formation of permeable Ti sub-oxides as the pseudo-passivating film. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3227 / 3234
页数：8
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