Optimizing the hot compaction parameters of Al-Mg-Cu foams processed through elemental powder route

2nd International conference on Advances in Mechanical Engineering

Sudharsan, N.^1 ; Rajasekaran, T.^1 ; Vinod-Kumar, G.S.^2

Department of Mechanical Engineering, SRM Institute of Science and Technology, Kattankulathur

603203, India^1

SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur

603203, India^2

关键词: Aluminium foam;    Closed cell foams;    Elemental powders;    Hot compaction;    Oxidation rates;    Powder metallurgy process;    TiH2;    Titanium hydride;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/402/1/012202/pdf
DOI  :  10.1088/1757-899X/402/1/012202

来源: IOP

【 摘 要 】

Aluminium foam is most commonly used in automobiles, so a closed-cell foam is going to be prepared. This is prepared by the powder metallurgy process using aluminium in addition to Copper and Magnesium, along with Titanium Hydride as a blowing agent. The composition of the powder used vary with weight%, Aluminium of purity 99.7%, Copper of purity 99.8%, Mg of purity 98.3% along with this TiH2 is used as a blowing agent. Copper is used in this method because it has higher melting temperature and higher strength, and also to add strength to aluminium while compacting. The composition of Al-Mg-Cu produces foam with properties of corrosion resistance, and also reduce the weight of the foam. Since Mg gives better result than the Cu, Mg is used as an alloying element because it can increase the oxidation rate, improve the structure of the pore developed in foam, can produce less coarse and more homogeneous foams, and also obtain the maximum expansion of the foam. Thus by varying the parameters like varying the composition of the powder, temperature, time and the pressure given during compaction we will be able obtain a better result for producing a good precursor.