| 학회 | 한국재료학회 |
| 학술대회 | 2010년 봄 (05/13 ~ 05/14, 삼척 팰리스 호텔) |
| 권호 | 16권 1호 |
| 발표분야 | C. Energy and the Environment(에너지 및 환경재료) |
| 제목 | The Structure and Mechanical Properties of AA2014 Alloy Foams |
| 초록 | Metal foam, as one of the most interesting materials in the field of functional materials, has so many excellent properties, such as lightweight, incombustible, thermal insulation, energy absorption and pro-environment, that it can be used in such various fields of automotives, transports, ships and aerospace applications. But to fabricate foams with uniform pores and high compression strength is the most crucial thing, which can be achieved by control forming conditions strictly. In this study, Al-Cu alloy was used to manufacture the closed-cell metal foams, by putting certain thickener (Ca usually) and foaming agent (TiH2 usually) into molten metal, as casting method. To evaluate the quality of foams which been fabricated, the porosity, pore size and distribution, compressive and impact ability and hardness of the foam were investigated. And as a comparison, pure Al foams were also compared to. I-Solution program was used to measure the pore size and distribution; OM and SEM were used to analyze the microstructure and composition of the surface. Compressive test was carried out by using UTM, and compressive strength decreased with the increasing of the porosity. Impact energy absorption test was tested with IZOD tester, and the higher the porosity was, the smaller the impact energy absorption was. The hardness was tested by the micro hardness tester and the results, was much higher than that of pure aluminum because of the addition of Cu. The significant one is that the best foaming conditions were found for Al-Cu alloy. And the mechanical properties of Al-Cu alloy foams were investigated. Because of good results in its properties, this new materials could be mass produced and applied in many fields. |
| 저자 | Zan Wang1, Byeonggu Kim2, Boyoung Hur3 |
| 소속 | 1i-Cube center, 2ReCAPT, 3School of nano advanced Materials and Engineering |
| 키워드 | Metal Foam; Casting Method; SEM-EDX Analysis; Microstructure; Mechanical Properties |
