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材料工程  2010 

挤压-剪切工艺挤压AZ31镁合金的组织和织构演变

, PP. 24-28

Keywords: 大变形,挤压-剪切工艺,组织形貌,织构演变,镁合金

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Abstract:

采用大变形技术"挤压-剪切"(Extrusion-shear,ES)工艺挤压AZ31镁合金并研究其组织和织构演变。结果表明经ES工艺挤压后能得到细小均匀的再结晶晶粒;其宏观组织内存在多种类型的织构,削弱了基面织构的主导地位;由极图可知{0002}基面织构强度下降,ES工艺的再结晶机制是连续动态再结晶。

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