...形； 流变应力； 变形激活能； 力学性能[gap=1164]Key words: Mg-Nd-Zn-Zr magnesium alloy; hot-compression; peak flow stress; deformation activation energy; mechanical properties..
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Effect of strain rates on peak flow stress is relate to deformation temperature.
应变速率对峰值应力的影响与变形温度有关。
The experimental results show that the deformation temperature has significant influence on peak flow stress of the semi-solid LY11 alloy and as-received.
由试验结果可知：变形温度对LY 11合金的峰值应力影响显著，对稳态应力影响较小。
The results show that the flow stress and peak strain increase with increasing strain rate or decreasing deformation temperature.
结果表明：实验条件下，流变应力及峰值应变随变形温度的降低和应变速率的提高而增大。
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