THE STRENGTH AND PLASTICITY OF ANISOTROPIC METALS.
MASSACHUSETTS INST OF TECH CAMBRIDGE METALS PROCESSING LAB
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Sheets of the magnesium alloys AZ31B, HK31A, and ZE10A in several different tempers were tested in tension and determinations were made of the ratio of width-to-thickness strains. Fracture appearance is explained on the basis of anisotropy in plastic flow, and implications for developing texture- hardening effects in these alloys are discussed. Titanium sheet of commercial purity RC-70 and an alpha-titanium alloy 2-12 Sn 5 A1 were tested in tension and plane-strain compression. Strain ratios of R 1 in the RC-70 sheet eree related to an unexpected texture with a strong concentration of 000 basal poles along the transverse direction. The low R values were responsible, in turn, for a texture softening in plane-strain compression. In the 5 A12 12 Sn alloy a strong 000 concentration near the sheet normal was responsible for higher R values and the observation of texture hardening in planestrain compression. Author