Aluminum Foam-Filled Steel Tube Fabricated from Aluminum Burrs of Die-Castings by Friction Stir Back Extrusion

Hangai, Yoshihiko; Kobayashi, Ryusei; Suzuki, Ryosuke; Matsubara, Masaaki; Yoshikawa, Nobuhiro

doi:10.3390/met9020124

Open AccessArticle

Aluminum Foam-Filled Steel Tube Fabricated from Aluminum Burrs of Die-Castings by Friction Stir Back Extrusion

by

Yoshihiko Hangai

^1,*,

Ryusei Kobayashi

¹,

Ryosuke Suzuki

¹,

Masaaki Matsubara

¹ and

Nobuhiro Yoshikawa

²

¹

Faculty of Science and Technology, Gunma University, Kiryu 376-8515, Japan

²

Institute of Industrial Science, The University of Tokyo, Tokyo 153-8505, Japan

^*

Author to whom correspondence should be addressed.

Metals 2019, 9(2), 124; https://doi.org/10.3390/met9020124

Submission received: 30 December 2018 / Revised: 16 January 2019 / Accepted: 18 January 2019 / Published: 24 January 2019

(This article belongs to the Special Issue Cellular Metals: Fabrication, Properties and Applications)

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Abstract

A mixture of Al burrs of Al high-pressure die-castings and a blowing agent powder was used to fabricate Al foam-filled steel tubes by friction stir back extrusion (FSBE). It was shown that the mixture can be sufficiently consolidated to form an Al precursor that is coated on the inner surface of a steel tube by the plastic flow generated during FSBE. Namely, a precursor coated steel tube can be fabricated from Al burrs by FSBE. By heat treatment of the precursor coated steel tube, an Al foam-filled steel tube can be fabricated. Al foam was sufficiently filled in the steel tube, and the porosity was almost homogeneously distributed in the entire sample. In compression tests of the samples, the Al foam-filled steel tube fabricated from Al burrs exhibited similar compression properties to an Al foam-filled steel tube fabricated from the bulk Al precursor. Consequently, it was shown that an Al foam-filled steel tube cost-effectively fabricated from Al burrs by FSBE compares favorably with an Al foam-filled steel tube fabricated from the bulk Al precursor.

Keywords: cellular materials; composites; friction welding; foam; recycle

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MDPI and ACS Style

Hangai, Y.; Kobayashi, R.; Suzuki, R.; Matsubara, M.; Yoshikawa, N. Aluminum Foam-Filled Steel Tube Fabricated from Aluminum Burrs of Die-Castings by Friction Stir Back Extrusion. Metals 2019, 9, 124. https://doi.org/10.3390/met9020124

AMA Style

Hangai Y, Kobayashi R, Suzuki R, Matsubara M, Yoshikawa N. Aluminum Foam-Filled Steel Tube Fabricated from Aluminum Burrs of Die-Castings by Friction Stir Back Extrusion. Metals. 2019; 9(2):124. https://doi.org/10.3390/met9020124

Chicago/Turabian Style

Hangai, Yoshihiko, Ryusei Kobayashi, Ryosuke Suzuki, Masaaki Matsubara, and Nobuhiro Yoshikawa. 2019. "Aluminum Foam-Filled Steel Tube Fabricated from Aluminum Burrs of Die-Castings by Friction Stir Back Extrusion" Metals 9, no. 2: 124. https://doi.org/10.3390/met9020124

APA Style

Hangai, Y., Kobayashi, R., Suzuki, R., Matsubara, M., & Yoshikawa, N. (2019). Aluminum Foam-Filled Steel Tube Fabricated from Aluminum Burrs of Die-Castings by Friction Stir Back Extrusion. Metals, 9(2), 124. https://doi.org/10.3390/met9020124

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

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Aluminum Foam-Filled Steel Tube Fabricated from Aluminum Burrs of Die-Castings by Friction Stir Back Extrusion

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