求翻译：摘要: 研究了铸态AZ31B 镁合金在温度280～440℃和应变速率10-3～10-1s-1 范围内的变形规律。结果表明:铸态AZ31B 镁合金在高温下表现出较低的流变应力, 其真应力- 真应变曲线表现出明显的动态再结晶特征。再结晶晶粒明显细化, 晶粒尺寸随着温度的下降而增大。在低应变速率下可以得到相对均匀的变形组织。是什么意思？

Abstract: The deformation of the the cast az31b magnesium alloy in the temperature of 280 ~ 440 ° C and strain rate within the range of 10-3 to 10-1s-1. The results showed that: the cast az31b magnesium alloy exhibited lower flow stress at high temperatures, the true stress - true strain curves show

Summary: Study the cast -AZ B magnesium 31 at a temperature 280 to 440 °C and contingency rate 10 - 3 to 10 - 1s - 1 range of deformation patterns. Results show that: die-cast magnesium B mentality AZ 31 performance at high temperatures of the lower class is stress, its really stress strain curves -

Abstract: Has studied the cast condition AZ31B magnesium alloy in the temperature 280~440℃ and in the strain speed 10-3~10-1s-1 scope distortion rule.The result indicated that,The cast condition AZ31B magnesium alloy displays the low changing stress under the high temperature, its true stress - real

Summary: research cast 280~440℃ of AZ31B magnesium alloy in temperature and strain rate deformation in the 10-3~10-1s-1 range. Results indicate that the cast of AZ31B magnesium alloy at high temperature shows lower flow stress, the true stress-true strain curves showing obvious characteristics of dy

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