|
|
|
| A study of the selective dissolution behavior of duplex stainless steel by micro-electrochemical technique |
| FU Yan; LIN Changjian; TSAI Wen-Ta |
| State Key Laboratory for Physical Chemistry of Solid Surfaces; Department of Chemistry;Xiamen University; Xiamen |
|
Cite this article:
FU Yan; LIN Changjian; TSAI Wen-Ta. A study of the selective dissolution behavior of duplex stainless steel by micro-electrochemical technique. Acta Metall Sin, 2005, 41(3): 302-306 .
|
|
|
Abstract The Ag-AgCl micro-reference electrodes were fabricated and used to
determine the potentials of ferrite and austenite in duplex stainless steel in NaCl
solutions separately. The result shows that ferrite has lower corrosion potential than
that of austenite. To determine the corrosion behavior for the single phases accurately
and obtain more information about the selective corrosion, a capillary-based micro
electrochemical system was established. The electrochemical determinations of ferrite
and austenite were performed respectively in solutions
containing nitric acid and FeCl3.
According to the results, ferrite has more noble corrosion potential and low current
density in 1.5 mol/L HNO3 and 1.5 mol/L HNO3 + 0.5 mol/L
FeCl3 solutions, thus selective corrosion occurred
in austenite phase, while, in 1.5 mol/L HNO3+0.1 mol/L
FeCl3 solutions, the potential differences between two
phases are not obvious, which result in little selective corrosion.
|
|
Received: 21 April 2004
|
|
|
[1] Wu J. Corros Prot Oil Chem Eng, 1996; 13(1): 6 (吴玖.石油化工腐蚀与防护, 1996;13(1):6)
[2] Qin Z R, Li L S, Liu D J. Dev Appl Mater, 1995; 10(5): 8 (秦紫瑞,李隆盛,刘德经.材料开发与应用,1995;10(5):8)
[3] Wu J et al. Duplex Stainless Steel. Beijing: Metallurgical Industry Press, 1999: 459 (吴玖等.双相不锈钢.北京:冶金工业出版社,1999:459)
[4] Xuan Z N, Chen K F. Chin Pulp Paper Ind, 2002; 23(9): 43 (宣征南,陈克复.中华纸业, 2002;23(9):43)
[5] Sridhar N, Kolts J. Corrosion, 1987; 43: 648
[6] Symniotis E. Corrosion, 1990; 46: 2
[7] Yau Y H, Steicher M A. Corrosion, 1987; 43: 366
[8] Aldykiewicz A J, Isaacs H S. Corros Sci, 1998; 40: 1627
[9] Tsai W T, Tsai K M, Lin C J, Fu Y. Electrochem, 2003; 9: 170
[10] Femenia M, Pan J, Leygraf C. Corros Sci, 2001; 43: 1939
[11] Femenia M, Canalias C, Pan J, Leygraf C. J Electrochem Soc, 2003; 150: B274
[12] Pan J, Femenia M, Canalias C. Electrochem Soc Proc, 1999; 99(28): 131
[13] Dias A, Andrade M S. Appl Surf Sci, 2000; 161: 109
[14] Park J O, Suter T, Bohni H. Corrosion, 2003; 59: 59
[15] Suter T, Bohni H. Electrochim Acta, 2001; 47 (1-2): 191
[16] Webb E G, Alkire R C. J Electrochem Soc, 2002; 149: B272
[17] Perren R A, Suter T A, Uggowitzer P J, Weber L, Mag- dowski R, Bohni H, Speidel M O. Corros Sci, 2001; 43: 707
[18] Perren R A, Suter T A, Uggowitzer P J. Corros Sci, 2001; 43: 727
[19] Yau Y H, Steicher M A. Corrosion, 1987; 43: 366
[20] El-Dahshan M E, El Din A M S, Haggag H H. Desalination, 2002; 142: 161
[21] Davis G O, Kolts J, Sridhar N. Corrosion, 1986; 42: 329 |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
