首页> 外文期刊>Journal of Materials Engineering and Performance >Deformation Microstructures of Mg-3Al-1Zn Magnesium Alloy Compressed Over Wide Regions of Temperature and Strain Rate
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Deformation Microstructures of Mg-3Al-1Zn Magnesium Alloy Compressed Over Wide Regions of Temperature and Strain Rate

机译:Mg-3Al-1Zn镁合金在大范围温度和应变率下压缩的变形组织

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摘要

Hot compression tests of Mg-3Al-1Zn magnesium alloy were performed at temperatures between 300-500℃ and strain rates between 0.03 and 90 s~(-1). Dynamic recrystallization of the alloy is developed by the necklace mechanism. At the temperature of 300℃, structures are fully dynamic recrystallized except at intermediate strain rates. As temperature rises to 400℃, structures are fully recrystallized at all strain rates. The abnormal grain size increase at high strain rate is attributed to the temperature rising of the deforming sample.
机译:Mg-3Al-1Zn镁合金在300-500℃的温度和0.03至90 s〜(-1)的应变速率下进行了热压缩试验。合金的动态再结晶是通过项链机理产生的。在300℃的温度下,除了中等应变速率外,结构是完全动态重结晶的。当温度升至400℃时,结构在所有应变速率下都会完全重结晶。高应变速率下晶粒尺寸的异常增加归因于变形样品的温度升高。

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