Drop Weight Impact Behavior of Al-Si-Cu Alloy Foam-Filled Thin-Walled Steel Pipe Fabricated by Friction Stir Back Extrusion

被引：25

作者：

Hangai, Yoshihiko ^{[1
]}

Nakano, Yukiko ^{[1
]}

Utsunomiya, Takao ^{[2
]}

Kuwazuru, Osamu ^{[3
]}

Yoshikawa, Nobuhiro ^{[4
]}

机构：

[1] Gunma Univ, Fac Sci & Technol, Kiryu, Gunma 3768515, Japan

[2] Shibaura Inst Technol, Dept Mech Engn, Tokyo 1358548, Japan

[3] Univ Fukui, Grad Sch Engn, Fukui 9108507, Japan

[4] Univ Tokyo, Inst Ind Sci, Tokyo 1538505, Japan

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2017年 / 26卷 / 02期

基金：

日本科学技术振兴机构;

关键词：

aluminum; cellular materials; dynamic; friction stir back extrusion; mechanical; x-ray computed tomography; ALUMINUM FOAM; MECHANICAL-PROPERTIES; MANUFACTURE;

D O I：

10.1007/s11665-016-2484-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, Al-Si-Cu alloy ADC12 foam-filled thin-walled stainless steel pipes, which exhibit metal bonding between the ADC12 foam and steel pipe, were fabricated by friction stir back extrusion. Drop weight impact tests were conducted to investigate the deformation behavior and mechanical properties of the foam-filled pipes during dynamic compression tests, which were compared with the results of static compression tests. From x-ray computed tomography observation, it was confirmed that the fabricated foam-filled pipes had almost uniform porosity and pore size distributions. It was found that no scattering of the fragments of collapsed ADC12 foam occurred for the foam-filled pipes owing to the existence of the pipe surrounding the ADC12 foam. Preventing the scattering of the ADC12 foam decreases the drop in stress during dynamic compression tests and therefore improves the energy absorption properties of the foam.

引用

页码：894 / 900

页数：7

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