Fabrication of Al/Mg/Al laminate by a porthole die co-extrusion process

被引：57

作者：

Chen, Liang ^{[1
]}

Tang, Jianwei ^{[1
]}

Zhao, Guoqun ^{[1
]}

Zhang, Cunsheng ^{[1
]}

Chu, Xingrong ^{[1
]}

机构：

[1] Shandong Univ, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan 250061, Shandong, Peoples R China

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2018年 / 258卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Porthole die co-extrusion; Al/Mg/Al laminate; Microstructure; Mechanical property; MECHANICAL-PROPERTIES; MG ALLOY; MICROSTRUCTURAL EVOLUTION; COMPOSITE; BEHAVIOR; TEXTURE; DEFORMATION; RECRYSTALLIZATION; SHEET; LI;

D O I：

10.1016/j.jmatprotec.2018.03.027

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A porthole die co-extrusion (PCE) process was proposed to fabricate the Al/Mg/Al laminate. The results showed that the laminate was successfully extruded without voids or cracks on the Al/Mg interface. The transition layer was formed and its thickness was increased with the increase of temperature. Partial dynamic recrystallization (DRX) occurred in Al layer, and the texture of Al layer has strong E {111} < 011 > and Y {111} < 112 > shear-typed components and relative weak Copper {112} < 111 > and S {123} < 634 > rolling components. The near complete DRxed grain structure was observed in Mg layer, and the average grain size increases with increasing temperature. Mg layer has strong basal plane texture with (0001) planes parallel to extrusion direction and prismatic planes with random distribution. At lower extrusion temperature, both the Al and Mg matrixes exhibited higher hardness. Furthermore, the hardness of Al/Mg interface is lower than that of the Al and Mg matrix.

引用

页码：165 / 173

页数：9

共 35 条

[1] Application of texture simulation to understanding mechanical behavior of Mg and solid solution alloys containing Li or Y [J].