Materials Transactions Online

Materials Transactions, Vol.58 No.02 (2017) pp.243-248
© 2017 The Japan Institute of Metals and Materials

Foaming Process and Properties of 6063 Aluminum Foams by Melt Foaming Method

Tong Shi1, Xiang Chen1, 2, Ying Cheng1 and Yanxiang Li1, 2

1School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
2Key Laboratory for Advanced Materials Processing Technology, Ministry of Education, Tsinghua University, Beijing, 100084, China

Aluminum foams made by 6063 aluminum alloy have been prepared by melt foaming method. The uniformity of foam pores is much concerned for that homogeneous pores attribute to excellent properties. It is mainly up to the stirring intensity when adding the blowing agent into the melt, and the cooling rate of the liquid foams. In this paper, 6063 aluminum foams have been fabricated by different stirring times of TiH2 at different cooling conditions. Microstructure, cell size uniformity and compressive property of the foams have been studied. The melt which mechanically stirred for 6 minutes before foaming and the foam cooled in the air show homogenous pore structure and good mechanical property. The use of 6063 aluminum alloy offers a new raw material to prepare foams with a uniform cell size distribution as well as good mechanical property.

[doi:10.2320/matertrans.M2016244]

(Received 2016/07/04; Accepted 2016/11/21; Published 2017/01/25)

Keywords: 6063 aluminum foam, stirring intensity, cooling rate, cell size uniformity, compressive property

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