Abstract
The surface of anodized parts made of 1163T aluminum alloy that are produced by mechanical treatment of large pressed or rolled semifinished products exhibits dark regions. These regions have a higher electrical conductivity 7 than the rest of the anodized surface, colored light-yellow. Some authors explain the appearance of me dark stains by high-temperature decomposition of the solid solution, which is initiated by secondary heating of these surface regions due to the heat of surrounding volumes in random interruptions of the cooling process. The aim of the present work is to refine the dependence of γ on the endurance in tests for low-cycle fatigue of specimens from seminifinished products made of 1163 alloy in order to establish the intensity of the decrease of the endurance and the admissible increase of γ in the region of dark stains.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 6, pp. 16–19 June, 1995.
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Teleshov, V.V., Kuzginov, V.I., Golovleva, A.P. et al. Effect of high-temperature decomposition of the solid solution on the low-cycle fatigue resistance of semifinished products made of aluminum alloy 1163. Met Sci Heat Treat 37, 233–236 (1995). https://doi.org/10.1007/BF01152225
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DOI: https://doi.org/10.1007/BF01152225