Abstract

Plane-strain compression tests were made on Al-4 wt pet Cu single crystals of various orientations in solution-treated and overaged conditions. Shear stress-shear strain curves were constructed using the appropriate Taylor factors, corrected for lattice rotation and observed lateral spreading. These results are compared with data from an earlier study on crystals of the same alloy aged to produce ϑ′. The anisotropy of the shear stress-shear strain curves was found to be the greatest in the normally aged material (ϑ′) and the least in the overaged material(ϑ′).

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