Effect of Equal-Channel Angular Pressing and Targeted Heat Treatment on Aluminum AA7075 Sheet Metal

被引：3

作者：

Gruber, Maximilian ^{[1
]}

Spoerer, Thomas ^{[1
]}

Illgen, Christian ^{[2
]}

Frint, Philipp ^{[2
]}

Wagner, Martin F-X ^{[2
]}

Lechner, Philipp ^{[1
]}

Volk, Wolfram ^{[1
]}

机构：

[1] Tech Univ Munich, Chair Met Forming & Casting, Walther Meissner Str 4, D-85748 Garching, Germany

[2] Tech Univ Chemnitz, Inst Mat Sci & Engn, Erfenschlager Str 73, D-09125 Chemnitz, Germany

来源：

CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS 2022 | 2022年

关键词：

Equal-channel angular pressing (ECAP); Aluminum AA7075; Resistance heating; Hot tensile test; MECHANICAL-PROPERTIES; ALLOY; ECAP; MICROSTRUCTURE; DEFORMATION;

D O I：

10.1007/978-3-030-92373-0_3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, equal-channel angular pressing (ECAP) was used to improve the mechanical properties of Aluminum AA7075 sheet metal. Various approaches were tested for ECAP route C, involving either channel geometry, forming temperature, or post-treatment time. The specimens were evaluated by tensile testing and compared with reference specimens in artificially aged T6 conditions. The goal was to optimize the time- and energy-consuming artificial aging procedure. The results show that a 75% reduction in artificial aging time still leads to an increase in yield strength due to ECAP. In addition, the elongation at fracture is strongly influenced by ECAP. Furthermore, tensile tests were performed on a resistance-heated test bench to determine its potential for hot forming processes. These results show that the use of ECAP with sheet metal enables efficient production of high-strength aluminum and thus contributes to a more sustainable production.

引用

页码：25 / 36

页数：12

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