Wuyang Chu, Kewei Gao, Lijie Qiao, and Yue Zhang, An investigation of corrosion-induced stress during SCC, J. Univ. Sci. Technol. Beijing, 10(2003), No. 1, pp. 1-7.
Cite this article as:
Wuyang Chu, Kewei Gao, Lijie Qiao, and Yue Zhang, An investigation of corrosion-induced stress during SCC, J. Univ. Sci. Technol. Beijing, 10(2003), No. 1, pp. 1-7.
Wuyang Chu, Kewei Gao, Lijie Qiao, and Yue Zhang, An investigation of corrosion-induced stress during SCC, J. Univ. Sci. Technol. Beijing, 10(2003), No. 1, pp. 1-7.
Citation:
Wuyang Chu, Kewei Gao, Lijie Qiao, and Yue Zhang, An investigation of corrosion-induced stress during SCC, J. Univ. Sci. Technol. Beijing, 10(2003), No. 1, pp. 1-7.
TEM (Transmission Electron Microscope) observations show that corrosion process during stress corrosion cracking (SCC) enhances dislocation emission and motion; and microcrack of SCC initiates when the corrosion-enhanced dislocation emission and motion reaches a certain condition. The passive film or dealloyed layer formed during corrosion or SCC can induce a large tensile stress, which can assist the applied stress to enhance dislocation emission and motion, and then SCC occurs. Experiments show that the variation of SCC susceptibility of brass, α-Ti and stainless steel with the applied potential and pH value of the solution is consistent with that of the corrosion-induced additive stress. Molecular dynamics simulations show that a dealloyed layer can generate a tensile stress; and the corrosion (dealloyed layer)-induced tensile stress can assist the applied stress to enhance dislocation emission and crack propagation.
TEM (Transmission Electron Microscope) observations show that corrosion process during stress corrosion cracking (SCC) enhances dislocation emission and motion; and microcrack of SCC initiates when the corrosion-enhanced dislocation emission and motion reaches a certain condition. The passive film or dealloyed layer formed during corrosion or SCC can induce a large tensile stress, which can assist the applied stress to enhance dislocation emission and motion, and then SCC occurs. Experiments show that the variation of SCC susceptibility of brass, α-Ti and stainless steel with the applied potential and pH value of the solution is consistent with that of the corrosion-induced additive stress. Molecular dynamics simulations show that a dealloyed layer can generate a tensile stress; and the corrosion (dealloyed layer)-induced tensile stress can assist the applied stress to enhance dislocation emission and crack propagation.
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