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Fabrication of Mg Alloy Foam via Melting Foaming Method Using $CaCO_3$ as Blowing Agent  

Yang, Dong-Hui (K-MEM R&D Cluster-GSNU, Div. of Mat. Eng., Gyeongsang, Nat. Univ., i-Cube Center, School of Nano & advanced Materials Engineering, Gyeongsang, Nat. Univ.)
Seo, Chang-Hwan (K-MEM R&D Cluster-GSNU, Div. of Mat. Eng., Gyeongsang, Nat. Univ., i-Cube Center, School of Nano & advanced Materials Engineering, Gyeongsang, Nat. Univ.)
Wang, Xiao-Song (K-MEM R&D Cluster-GSNU, Div. of Mat. Eng., Gyeongsang, Nat. Univ., i-Cube Center, School of Nano & advanced Materials Engineering, Gyeongsang, Nat. Univ.)
Hur, Bo-Young (K-MEM R&D Cluster-GSNU, Div. of Mat. Eng., Gyeongsang, Nat. Univ., i-Cube Center, School of Nano & advanced Materials Engineering, Gyeongsang, Nat. Univ.)
Publication Information
Journal of Korea Foundry Society / v.26, no.6, 2006 , pp. 272-276 More about this Journal
Abstract
For the first time AZ91 (MgAl9Zn1) and AM60 (MgAl6) Mg alloy foams with homogeneous pore structures were prepared successfully via melting foaming method by using $CaCO_3$ powder as blowing agent. The possible foaming mechanisms and pore structures of these Mg alloy foams were discussed and investigated. The results show that Mg alloy melt can affect $CaCO_3$ decomposition behavior and AZ91 Mg alloy is relative easy to be foamed into metal foam with high porosity and big pore size.
Keywords
Mg alloy foam; Blowing agent; $CaCO_3$ powder; Pore structure;
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