Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Fabrication of Mg Alloy Foam via Melting Foaming Method Using $CaCO_3$ as Blowing Agent

$CaCO_3$를 이용한 발포 마그네슘 합금의 제조

  • 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.)
  • 양동휘 (클러스터, i-cube Center, 경상대학교) ;
  • 서창환 (클러스터, i-cube Center, 경상대학교) ;
  • 왕효숭 (클러스터, i-cube Center, 경상대학교) ;
  • 허보영 (클러스터, i-cube Center, 경상대학교)
  • Published : 2006.12.20
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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.

[ $CaCO_3$ ]를 발포제로 사용하여 균일한 기공구조를 가지는 AZ91과 AM60 마그네슘 합금의 발포 금속을 주조법을 통하석 제조하였다. 발포 금속의 제조가 가능한 이유와 발포 마그네슘 합금의 기공구조가 연구를 통하여 논의되었다. 마그네슘 합금의 용탕은 $CaCO_3$의 분해 거동에 영향을 미친다. 제조된 AZ91 마그네슘 합금의 발포 금속은 높은 기공률과 큰 기공의 크기를 가졌으며, 발포 금속들 중에서 상대적으로 쉽게 발포되는 것으로 판단된다.

Keywords

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