On precipitate-induced anisotropy modeling in binary Al-Cu alloys

The goal of this work is to assess the influence of precipitates on plastic anisotropy in two-phase aluminum alloys. For this purpose, binary Al-Cu alloys were processed so as to obtain a strong crystallographic texture. Specimens were machined based on the results of a polycrystal model and a precipitate model developed by Bate et al. [1, 2] which sus-nested specific uniaxial loading axes with respect to a fixed material reference frame. After uniaxial tension and compression, the aspect ratios of the specimen cross-sections are expected to follow the trends given by the models for materials in the solution heat-treated and near peak-aged conditions.