|
|
|
| THE BEHAVIOUR OF ALLOYING ELEMENTS IN MARINE LOW-ALLOY STEELS I. THE INFLUENCE OF ALLOYING ELEMENTS ON THE CORROSION POTENTIAL OF LOW-ALLOY STEELS IN ARTIFICIAL SEAWATER |
| Joint Res. Gp. of Corrosion; Shanghai Institute of Iron and Steel Research & Changchun Institute of Applied Chemistry; Academia Sinica |
|
Cite this article:
Joint Res. Gp. of Corrosion; Shanghai Institute of Iron and Steel Research & Changchun Institute of Applied Chemistry; Academia Sinica. THE BEHAVIOUR OF ALLOYING ELEMENTS IN MARINE LOW-ALLOY STEELS I. THE INFLUENCE OF ALLOYING ELEMENTS ON THE CORROSION POTENTIAL OF LOW-ALLOY STEELS IN ARTIFICIAL SEAWATER. Acta Metall Sin, 1979, 15(2): 215-226.
|
|
|
Abstract The effect of alloying elements such as Cr, Mo, Ni, Cu, Si, Al, V and Nbon stable corrosion potentials of low-alloy steels in artificial sea water at 30℃with or without aerating has been studied by variance analysis. Under non-aerat-ing static conditions, Cr or Mo caused the corrosion potential of steel towards posi-tive direction. The effect of Ni and Cu was similar to Cr and Mo, although tosome extent differed with different factorial experimental specimens. Positive mov-ing was observed when Si content in the steel was about 1%, but it changed tonegative with Si<0.5%. The joint effect of two elements as Cr and Mo, Crand Al, Ni and Cu, Cr and Ni, Si and Cr, Si and Mo etc. was such that posi-tive moving was generally observed. Under conditions of violent blowing air, el-ements which very markedly shifted the corrosion potential to positive directionappeared to be Mo, Ni and Cu, and with Cr somewhat to lesser extent. The effectof Al upon corrosion potential was marked only in the simultaneous presence ofCr. But this was not the case with Si, and its effect was negligible irrespectiveof its content. It would appear that the mutual interaction of alloying elements,particlularly with such combinations as Cr and Ni and Mo, Cr and Ni and Cu, Siand Mo etc., produced greater effect on corrosion potentials in aerated than inunaerated conditions, but such a difference was not observed when V is substitut-ed by Nb. Cr-Al was a compound agent appropriated for shifting the corrosionpotential towards positive direction.
|
|
Received: 18 February 1979
|
[1] Humble, H. A., Corrosion, 5 (1949) , 292．
[2] Hudson, J. C. et al., J. Iron Steel Inst., London, 180 (1955) , 271．
[3] Larrabee, C. P., Corrosion, 14 (1958) , 501．
[4] Copson, H. R., Amer. Soc. Test. Mater., Proc., 60 (1960) , 650．
[5] Brown, B. F., Met. Rev., 13 (1968) , 171．
[6] 佐武二郎,防食技术,18(1969) ,355．
[7] 高村昭,防食技术,19(1970) ,294．
[8] Southwell, C. R., Mater. Proct., 9 (1970) , №. 1, 14．
[9] HerZog, E., Fifth International Congress on Metallic Corrosion, Tokyo, 1972．
[10] 小若正伦,防食技术,20 (1971) ,213．
[11] Takamura, A. et al., Trans. Iron Steel Inst., Jap., 11 (1971) , 229．
[12] 玉田明宏,防食技术,21(1972) ,513．
[13] 田中,三菱製钢技术,17(1973) ,95．
[14] Tamada, A. et al., Proceedings of 5th International Congress Metallic Corrosion, Tokyo, 1973, p. 786．
[15] 桝木,製铁研究,(1975) ,№ 284．
[16] 小若,住友金属,21(1969) ,185．
[17] Shibata, T. et al., Trans. Iron Steel Inst., Jap., 19 (1969) , 239．
[18] Cleary, H. J., J. Metals, 22 (1970) , № 3, 39．
[19] Misawa, T. et al., Corros. Sci., 11 (1971) , 35．
[20] ibid., 14 (1974) , 279．
[21] Baudout, H. et al., Mem. Sci. Rev. Met., 43 (1946) , 1．
[22] Forgeson, B. W. et al., Corrosion, 16 (1960) , 105t.
[23] 海洋开发,58(1968) ,№ 1．
[24] 高村昭,防食技术,19(1970) .294
[25] 小若正伦,防食技术,20(1971) ,213．
[26] 尾崎敏范,日本金属学会会报,10(1971) ,575．
[27] Schultze, W. A. and Wekken, C. J., Brit. Corros. J., 11 (1976) , №,? 18．
[28] Hudson, J. C., J. Iron Steel Inst., London, 166 (1950) , 123．
[29] Heyn, E. and Bouer, C., Mitt. Mat. Pruef., 28 (1910) , 102．
[30] Alkire, R. and Nicolaides, G., J. Electrochem Soc., 121 (1974) , 183．
[31] Rosenfeld, I. L. et al., Corrosion, 20 (1964) , 115．
[32] Bates, J. F., Corrosion, 29 (1973) , 23．
[33] Laque, F. L., Corrosion, 13 (1957) , 303t. |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
