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Abstract The dynamical processes of the nucleation and propagation of stress corrosion cracking(SCC) of four low alloy steels with a wide range of tensile strengths in aqueous media with various polarization conditions, in a K_2Cr_2O_7 inhibitor solution and in some organic solvent such as acetone and alcohol were traced with an optical microscope.Results show that if the tensile strength of the steel is higher than a critical value, which is different for different polarization conditions, and if K_1>K_(ISCC), the delayed plastic deformation occurs in all environments used, i.e.,the plastic zone in front of a loaded crack tip is enlarged with time. The nucleation and propagation of SCC will follow when this delayed plastic deformation develops to a critical condition. Neither anodic and cathodic polarization nor the addition of inhibitor can change the feature of the delayed plasticity and the nucleatioa and propagation of SCC in aqueous media. In all the environments used, K_(ISCC) increases and da/dt decreases with decreasing strength of the steel. Anodic polarization and the addition of the inhibitor make K_(ISCC) increase and da/dt decrease, while the effect of cathodic polarization is just the other way.
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Received: 25 August 1981
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Cite this article:
Chu Wuyang Liu Tianhua Li Zhiyi Hsiao Chimei Li Shiqiong (Dep. of Metal Physics; Beijing University of Iron and Steel Technology). Mechanism of Stress Corrosion Cracking of Low Alloy Steels in Aqueous Media. J Chin Soc Corr Pro, 1981, 1(4): 8-15.
URL:
https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1981/V1/I4/8
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[1] B.E.wilde.Corrosion, Vol.27,326 (1971)
[2] B.F.Brown.Theory of Stress Corrosion Cracking in Alloys, Ed.by J.C.Scully, NATO.Brussels, 186(1971)
[3] R.N. Parkins. Brit. Corros. J. Vol. 7, 154(1972)
[4] H.Okada, K.I.yukawa and H.Tamura.Corrosion, Vol.32, 201(1976)
[5] C.D.Beachem.Met.Trans.,Vol.3, 437(1972)
[6] J.P.Hirth.Met.Trans.11A, 861(1980)
[7] Chu Wuyang (褚武扬), Hsiao Chimei (肖纪美), Li Shiqun (李世琼), Scripta Met., Vol.13,1063(1979)
[8] Chu Wuyang (褚武扬), Li Shiqun (李世琼), Hsiao Chimei (肖纪美)and Tien Juhugzuor (田中卓), Corrosion, Vol.36, 475(1980)
[9] 褚武扬,李世琼,肖纪美,王枨,金属学报,Vol.16,179(1980)
[10] Chu Wuyang (褚武扬), Hsiao Chimei (肖纪美), Li Shiqun (李世琼) Scripta Met. Vol.13 1057(1979) ,
[11] 褚武扬,肖纪美,李世琼,金属学报,Vol 17,10(1981)
[12] J.A.Smith, M.H.Deterson and B.F.Brown, Corrosion, Vol.26, 539(1970)
[13] 王燕宾,褚武扬,肖纪美,“高强度铝含金的应力腐蚀和氢脆”(1981) ,将发表于金属学报。
[14] 褚武扬编著,断裂力学基础,科学出版社,36,69(1979)
[15] Chu Wuyang(褚武扬), Li Shiqun(李世琼), Hsiao Chimei(肖纪美)Ju Shuryahu(朱淑彦), Corrosion, Vol. 37, 514(1981) |
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