Abstract
An AZ91 magnesium alloy with a diameter of 60mm was processed by the method of equal-channel angular processing (ECAP), after which it was examined along three orthogonal orientations in tensile test. The techniques of optical microscope and X-ray diffraction were used to test microstructure and basal texture, respectively. The results revealed a significant anisotropy in its mechanical behavior. Crystal grain was refined rapidly by broken β phase under lower ECAP temperature. The basal texture dominated the tensile deformation mechanism at room temperature, which was responsible for the anisotropy.
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