Serrated Flow Behavior during Compression at Elevated Temperatures in Mg-3Al-1Zn-0.1RE Alloy

来源 :Journal of Materials Science & Technology | 被引量 : 0次 | 上传用户:knh1988
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The deformation behaviour of an AZE(Mg-3Al-1Zn-0.1RE) alloy at temperature between 393 and 453 K was investigated by uniaxial compression tests carried out at initial strain rate values of 1×10-4,5×10-4 and 1×10-3 s-1 in air.The results show that serrated flow occurs at the strain rate of 10-4 s-1 under all test temperatures and 5×10-4 s-1 at 453 K.The mechanism of serrated flow was proposed,which is mainly attributed to the interaction of dislocations to the precipitates. The deformation behavior of an AZE (Mg-3Al-1Zn-0.1RE) alloy at temperature between 393 and 453 K was investigated by uniaxial compression tests carrying out at initial strain rate values ​​of 1 × 10 -4, 5 × 10 -4 and 1 × 10 -3 s -1 in air. The results show that serrated flow occurs at the strain rate of 10-4 s -1 under all test temperatures and 5 × 10 -4 s -1 at 453 K. The mechanism of serrated flow was proposed, which is mainly attributed to the interaction of dislocations to the precipitates.
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