AZ61镁合金挤锻复合成形技术研究

李亚宁; 龙思远; 曹韩学

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AZ61镁合金挤锻复合成形技术研究
Extrusion and Forging Combined Forming of Magnesium Alloy AZ61
2009年29卷第4期页码：384-387
纸质出版日期： 2009 ，
DOI：

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[1]李亚宁,龙思远,曹韩学.AZ61镁合金挤锻复合成形技术研究[J].特种铸造及有色合金,2009,29(04):384-387+294.

Li Yaning, Long Siyuan, Cao Hanxue. Extrusion and Forging Combined Forming of Magnesium Alloy AZ61[J]. Special Casting & Nonferrous Alloys, 2009,29(4):384-387.
[1]李亚宁,龙思远,曹韩学.AZ61镁合金挤锻复合成形技术研究[J].特种铸造及有色合金,2009,29(04):384-387+294. DOI：

Li Yaning, Long Siyuan, Cao Hanxue. Extrusion and Forging Combined Forming of Magnesium Alloy AZ61[J]. Special Casting & Nonferrous Alloys, 2009,29(4):384-387. DOI：

摘要

采用镁合金挤锻复合成形的试验方法

研究了AZ61镁合金微观组织演化与塑性变形机制之间的规律。结果表明

挤压和等温模锻后镁合金均发生了动态再结晶

生成了细小均匀的等轴晶粒

经T5热处理后其屈服强度、抗拉强度、伸长率分别可达249MPa、305MPa、15.4%。在此基础上进一步对镁合金的塑性变形机制进行了探讨。

Abstract

Relationship between the microstructural evolution and plastic deformation mechanism of AZ61 magnesium alloy was investigated by extrusion and forging combined forming. The results indicate that dynamic recrystallization occurs in the AZ61 magnesium alloy by both extrusion and isothermal forging

leading to the generation of fine and homogeneous equiaxed grain. Yield strength

tensile strength

elongation of the formed alloy after T5 heat treatment reach 249MPa

305MPa

respectively. Plastic deformation mechanism of the formed alloy is described.