Assessment of 1161АТ aluminum alloy susceptibility to operational degradation

Keywords

aluminum alloy, model degradation, microstructure, physical and mechanical properties.

Cite as

Ostash О. P., Chepil R. V., Abolikhina O. V., Semenets O. I., Znova V. A., and Kovalchuk L. B. Assessment of 1161АТ aluminum alloy susceptibility to operational degradation. Physicochemical Mechanics of Materials. 2024. 60(1), 012-017.

https://doi.org/10.15407/pcmm2024.01.012

Abstract

Structure, physicоmechanical characteristics, and fracture micromechanisms under static and cyclic loading of samples cut from clad 2 mm thick sheet made of 1161АT alloy of the Al-Cu-Mg-Mn-Zr system with a reduced content of Si and Fe (up to 0.1 wt% of each) were studied. This alloy in the initial state (quenching and natural aging) and after the influence of termomechanical factor in laboratory conditions which simulate the effects of opera­tional ones were investigated. The 1161AT alloy shows practi­cally the same service characteristics in the initial state and after model degradation, contrary to similar alloys with an increased content of Si and Fe impurities (up to 0.5 wt% of each).

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