The effects of pre-rolling and pre-stretching deformation on microstructure, mechanical properties and corrosion behavior of Al-Cu-Li alloy in subsequent peak-aging were investigated by means of microstructure observation with mechanical and intergranular properties tests. The test results show that the pre-deformation treatment before aging promotes the precipitation of a large number of uniform and fine T1 phase with dispersed distribution in the alloy grain, and reduces the number of precipitates on the grain boundary, so as to improve the comprehensive mechanical properties of the alloy. In addition, this precipitate microstructure can balance the potential difference between the grain boundary and the grain interior, reduce the intergranular corrosion sensitivity of the alloy, reduce the corrosion rate and enhance the intergranular corrosion resistance of the alloy.
Effect of pre-deformation on mechanical property and anti-corrosion resistance of spray deposited Al-Cu-Li alloy
2022
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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