|
|||||
|
|
Reduced-Pressure Foaming of Aluminum Alloys |
|
| Authors: | G S Vinod Kumar M Mukherjee F Garcia-Moreno J Banhart |
| Affiliation: | 1. Technische Universit?t Berlin, 10623, Berlin, Germany 2. Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai, India 3. Institute of Applied Materials (Fl1), Helmholtz-Zentrum Berlin f??r Materialien und Energie, 14109, Berlin, Germany |
| Abstract: | We developed a novel process for foaming aluminum and its alloys without using a blowing agent. The process involves a designated apparatus in which molten aluminum and its alloys are first foamed under reduced pressure and then solidified quickly. Foaming was done for pure aluminum (99.99 pct) and AlMg5 alloy not containing stabilizing particles and AlMg5 and AlSi9Mg5 alloys containing 5 vol pct SiO2 particles. We discuss the foaming mechanism and develop a model for estimating the porosity that can be achieved in this process. The nucleation of pores in foams is also discussed. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |