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Abstract THE PLASTIC BEHAVIOUR DURING SINULTANEOS TORSIONALTENSILE DEFORMATIONS OF PURE ALUMINIUM RAFFINAL AND A DILUTE ALUMINIUM ALLOY CONTAINING 0.25wt.%siAND 0.26WT.%ZN WAS INVESTIGATED.THE TORSIONAL DEFORMATION WAS EITHER UNIDIRECTIONAL OR BIDIRECTIONAL TWISTING.THE CHANGES IN TENSILE STRAIN PER UNIT TORSION ,TENSILE AND OR TORSIONAL DUCTILITY AND ELECTRICAL RESISTIVITY CHANGES WERE DETERMINED.FUTHERMORE,THE EFFECT OF TORSIONAL DEFORMATION ON THE MECHANICAL PROPERTIES :YIELD STRESS AND WORK HARDENING RATES WAS DETERMINED. |