粗晶组织阶段，强度很低，但塑性和弹性模量有较大程度提高。
The strength of the alloy foils with coarse grain microstructure was low, but the plasticity and elastic modulus were greatly improved.
铝合金反向挤压过程中，不同的挤压工艺条件对粗晶组织将产生不同的影响。
Among aluminium alloy indirect extrusion producing period, various process condition influence different result to the coarse grain structure.
但是，如果温度过高，会因产生再结晶而出现粗晶组织，还会导致性能的严重恶化。
But if the annealing temperature is too high these will appear coarse-grained structure resulting from entire recrystallization.
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