Study on anisotropic behavior of 7075 Al alloy after extrusion

被引：11

作者：

Zhang, Yi ^{[1
,2
]}

Ma, Jin ^{[1
]}

Wang, Qiang ^{[1
]}

Yang, Yongbiao ^{[1
]}

Zhu, Mingjie ^{[1
]}

Jia, Penglai ^{[1
]}

Duan, Yuhao ^{[1
]}

Zhang, Zhimin ^{[1
]}

机构：

[1] North Univ China, Coll Mat Sci & Engn, 3 Xueyuan Rd, Taiyuan 030051, Peoples R China

[2] North Automat Control Technol Inst, Taiyuan 030006, Peoples R China

来源：

MATERIALS RESEARCH EXPRESS | 2022年 / 9卷 / 02期

关键词：

7075 Al alloy; anisotropy; mechanical property; texture; schmid factor; MECHANICAL-PROPERTIES; ALUMINUM-ALLOY; PLASTIC ANISOTROPY; TEXTURE; SHEETS; RECRYSTALLIZATION; DEFORMATION; DUCTILITY;

D O I：

10.1088/2053-1591/ac4fdd

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

For an extrusion process of 7075 Al alloy, the extrusion direction of the initial blank is changed to study the mechanical properties of the formed plates and characterize their microstructure. The as-received bar is extruded 7075 Al alloy. The secondary extrusion deformation is along and perpendicular to the initial extrusion direction. The results show that the anisotropy of mechanical properties of the two samples decreases obviously after secondary deformation. The anisotropy of yield strength and ultimate tensile strength of ED90 sample is lower than that of ED0 sample, but the plastic anisotropy is slightly higher than that of ED0 sample. In addition, the recrystallized grain proportion of ED90 sample is high and the texture strength is low, so the Schmid factor in the three directions is similar. The tensile fracture mode of the two samples belongs to ductile fracture, but the morphology of dimple and the size of cleavage plane are slightly different.

引用

页数：12

共 30 条

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