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The hot tensile deformation process of traditional extrusion alloy ZA41 with different temperatures and stain rates is investigated. During the investigation the results show that under the condition of the deformation temperatures ranging from 583 to 613K and strain rates ranging from 5×10-5 to 6×10-4s-1 the alloy exhibits excellent elongation-to-failure of 219.4 % and strain rate sensitivity exponent of 0.35 at temperature of 598 K and strain rate of 5×10-5s-1. The experimental peak stress of ZA41 alloy also shows a decline with the rise of temperature and the decrease of strain rate. Microstructure observations suggest that plastic deformation fracture at high temperature and low strain rate occurs after the connection and expansion of the cavities distributing along triangular grain boundary, and grain boundary movement with cavity coordination makes an important contribution to the superior plasticity.1

Investigation on the Hot Tensile Deformation Process of Traditional Extrusion Alloy ZA41 with Different Temperatures and Stain Rates