| 학회 | 한국재료학회 |
| 학술대회 | 2009년 가을 (11/05 ~ 11/06, 포항공과대학교) |
| 권호 | 15권 2호 |
| 발표분야 | C. Energy and the Environment(에너지 및 환경재료) |
| 제목 | The research of Al-Mg alloy foam by melt foaming mehod and its mechanical property |
| 초록 | Melt foaming method is one of cost-effective methods.[1]. The Al-Mg alloy foam was prepared by the melt foaming method[2]. The preparation process is as the following,a quantity of Al-1%Mg alloy (~1kg) was melted in a crucible at a proper temperature and then 2wt.% Ca particles was added by a stirrer with rotation speed of 500rpm to increase the melt viscosity. After the melt viscosity reach a proper value, the foaming agent TiH2 was added and dispersed into the melt with the stirrer revolution speed of 1000rpm, leading to the melt being foamed gradually. After that, the stirrer was pulled out and the foamed melt was kept in the furnace to let a proper cellular structure be formed. Finally, the melt foam was cooled and solidified. Al-Mg foam samples were cut to 30Х30Х30mm3 and they were polished by emery papers of 1000# and 1200#. Then take some photographs and pore size and porosity were analyzed by using i-solution software. After that, Al-Mg foams sample was polished and rusted. The thickness cells were analyzed by use of Metallurgical Microscope and software. The compressive tests on these foams were carried out by Universal Testing Machine. When viewed on individual curvesm, the plateau strength for Al-1%Mg alloy foam was about 7 Mpa at 5% strain but decreases with increasing Mg content. The relationship between pore structures of foams and their mechanical properties is investigated. |
| 저자 | Rui Zhao1, Seungreung Jeong1, DongOk Kim2, Zan Wang1, Bo-Young HUR3 |
| 소속 | 1Gyeongsang National Univ., 2KATECH, 3Gyeongsang National Univ. ERIC |
| 키워드 | Al-Mg Alloy; Melt Foaming; Pore Structures; Performance Testing |
