|
|
|
Abstract The effects of various inhibitors on SCC of AISI 321 stainless steel in 0. 5 mol/L HCl+0.5mol/L NaCl solution at 55℃ was investigated by Slow Strain Rate Technique. Typical transgranular SCC which was promoted by anodic polarization was observed in the blank solution. The surface of the steel was in active corrosion state. Three groups of inhibitors were investigated:S, N-containing compounds, primary amines and tetra-amine salts. For the purpose of examining the role of iodide ion, the effect of KI was also investigated. It was found that iodide salts and 2-mercaptobenzothiazole could effectively prevent the test system from SCC. A technique was developed to estimate the effects of inhibitors on anodic and cathodic processes of corrosion in acid solutions quantitatively from electrochimical measurements. By this technique, it was found that those inhibitors which reduced the rate of anodic dissolution of the steel for more than two orders of magnitude could effectively prevent the steel from SCC in the test condition.
|
|
Received: 25 April 1992
|
Cite this article:
Cao Chu′nan ; Yang Qiangang ; Lu Min and Lin Haichao (Corrosion Sciience Laboratory; Institute of Corrosion and Protection of Metals; The Clanese Academg of Sciences. INHIBITORS FOR SCC OF AISI 321 IN ACIDIC CHLORIDE SOLUTION. J Chin Soc Corr Pro, 1992, 12(2): 109-115.
URL:
https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1992/V12/I2/109
|
[1] O' Dell, C. S., Brown, B. F., and Folog, R. T., Corrosion, 38, 104(1982)
[2] Itzhak, D. and Eliezer, D, Corros. Sci., 23, 1283(1983)
[3] Chen Xujun and Wu Shanhe, Proc. 6SEIC, Ferrara, PP. 677～689(1985)
[4] Frignani, A., Trabanelli, G. and Zucchi, F., Corros. Sci., 24, 917(1984)
[5] Davies, D. E., Dennison, J. P. and Odeh, A. A., Proc. 6SEIC, Ferrara, PP. 669～676(1985)
[6] 曹楚南,中国腐蚀与防护学报,5,155(1985)
[7] Henthorne, M. and Parkins, R. N., Corres. Sci., 6, 357(1966)
[8] Powell, J. E. and Scully, J. C., Corrosion, 24, 151(1968)
[9] Parkins, R. N., Mazza, F., Royuela, J. J. and Scully, J. C., Br. Corres. J., 7, 154(1972)
[10] 曹楚南,新材料研究--第二届中国材料研讨会,武汉,PP.238～244(1988)
[11] 曹楚南,中国腐蚀与防护学会成立十周年论文集,北京,PP.237～245(1990) |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
