Evolution of microstructure and texture of AZ61 Mg alloy during net-shape pressing of extruded perform

被引：1

作者：

Cao F.-H. ^{[1
]}

Long S.-Y. ^{[1
]}

Cao H.-X. ^{[1
]}

Pu Y.-B. ^{[1
]}

Cole G.S. ^{[2
]}

机构：

[1] College of Materials Science and Engineering, Chongqing University

[2] Light Weight Strategies LLC, Chicago

来源：

Transactions of Nonferrous Metals Society of China (English Edition) | 2010年 / 20卷 / SUPPL. 2期

关键词：

AZ61 magnesium alloy; extrusion; microstructure; pressing; texture;

D O I：

10.1016/S1003-6326(10)60538-9

中图分类号：

学科分类号：

摘要：

The micro orientation theological behavior of AZ61 Mg alloy during net-shape forming of tensile specimens via close-die pressing of extruded preformed and the effect of the press deformation rate on the microstructure characteristics were characterized with electron back-scattering diffraction (EBSD) orientation imaging microscopy and metallography. The results indicate that the intensity distribution of basal {0001}<10 10> texture on the cross-section of the extruded perform is uniform and parallel to the extrusion direction. Subjected to pressing in extrusion direction, deformation shear stress leads to grain rotation and basal texture {0001}<10 10> deviation from the extrusion direction, spreading in the direction perpendicular to pressing direction. The texture intensity increases with the press deformation rate and reaches its peak value at 50%, which is considerably lower than the value reached in extrusion deformation. Then, the texture intensity decreases with the press deformation rate reversely. © 2010 The Nonferrous Metals Society of China.

引用

页码：s561 / s566

页数：5

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