Abstract
Atomic force microscope (AFM) was used to studyin situ the change in slip bands during stress corrosion of brass in the ammonia solution prior to initiation of stress corrosion crack. The result showed that additive slip bands appeared ahead of a loaded notch tip during stress corrosion prior to initiation of stress corrosion crack after the constant deflection specimen was precrept for 48 h and then polished. The average height and spacing of slip bands generated during stress corrosion were about three times less or larger, respectively, than those during loading in air.
Similar content being viewed by others
References
Uhlig, H. H., Effect of surface dissolution on plastic deformation of iron and steel, J. Electrochem. Soc, 1976, 123: 1699.
Smialowski, M., Kostansking, J., Creep and SCC of austenitic stainless steel in boiling 35% MgCl2 solution, Corros. Sci., 1979, 19: 1019.
Gu, B., Chu, W. Y., Qiao, L. J. et al., The facilitating effect of anodic polarization on ambient creep of brass, Corros. Sci., 1994, 44: 1437.
Gu, B., Zhang, J. W., Wan, F. R. et al., Thein-site TEM observation of corrosion-facilitating dislocation emission, multiplication and motion for brass, Sci. Metall., 1995, 32: 637.
Gao, K. W., Wang, Y. B., Chu, W. Y.,In-situ TEM observation of dissolution-enhanced dislocation emission, motion and the nucleation of SCC for Ti-24Al-11Nb alloy in methanol, Scr. metall, 1997, 36: 259.
Huang, Y. Z., Chen, Q. Z., Chu, W. Y.,In situ TEM observation of dislocation emission and motion induced by anodic dissalution in type 310 stainless steel, J. Mater. Sci. Tech., 1996, 12: 215.
Gao, K. W., Chu, W. Y., Gu, B. et al.,In-situ transmission electron microscopic observation of corrosion-enhanced dislocation emission and crack intiation of stress crrosion, Corros., 2000, 56: 515.
Nelson, J. C., Oriani, R. A., Stress generation during anodic oxidation of titanium and aluminum, Corr. Sci. 1993, 34: 307.
Lu, H., Zhang, T. Z., Chu, W. Y., Corrosion-facilitating local plastic deformation for a-Ti in methanol, J. Mater. Sci.Tech., 1998, 14: 188.
Lu, H., Gao, K. W., Chu, W. Y., Investigation of tensile stress induced by dezincification layer during corrosion for brass, Corro. Sci., 1998, 40: 1663.
Guo, X. Z., Gao, K. W., Qiao, L. J. et al., SCC relation with dezincification layer-induced stress, Metall Mater. Trans., 2001, 32A: 1309.
Author information
Authors and Affiliations
About this article
Cite this article
Liang, S., Qiao, L. & Chu, W. Investigation of stress corrosion-enhanced plastic deformation using atomic force microscope. Chin. Sci. Bull. 47, 1053–1056 (2002). https://doi.org/10.1007/BF02907582
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02907582