ZM5/ZL102Composites Forming And Its Performance Study

In this experimental, ZL102aluminum alloy ZM5magnesium alloy and1060purealuminum as raw materials of magnesium aluminum composite materials was studied,magnesium aluminum composite materials were fabricated by casting with ZL102molten metal and ZM5molten metal were separated by the middle baffle plate1060,andthen this two kinds of molten metal solidified respectively in the side of1060middlebaffle plate.Finally,ZM5/ZL102layered composite materials has been preparationMagnesium aluminum layered composite material make full use of the magnesiummetal and magnesium alloy features of light weight and good electromagnetic shieldingperformance, reduce the weight of composite materials, it has excellent electromagneticshielding performance; At the same time it use the wear-resisting,corrosion resistanceand easy processing characteristics of aluminum alloy. Magnesium aluminum compositematerial has wide application field, such as aviation, transportation, electronicproducts.Composite materials made by casting composite method. The influence of1060intermediate plate thickness and ZL102and ZM5volume ratio to mechanicalproperties and the combination properties of composite materials were studied. Thethickness relationship between before casting and original middle baffle plate wasanalyzed. Experiments obtained Impact resistance, tensile strength of the interface andhe interface phase composite of aluminum magnesium composite materials. Theinfluence of annealing to the binding properties and the mechanical properties ofcomposite materials were researched, the optimal of annealing process of compositematerials was determined.Through measured to the thickness of middle baffle plate the casting ZM5/ZL102aluminum magnesium composite materials found that thickness of after casting and original middle baffle plate was linear, and the thickness of middle baffle plate1060after casting increases with increasing the thickness of middle baffle plat before casting.The thickness of middle baffle plate after casting and ZL102and ZM5volume ratio is alinear relationship. The thickness of middle baffle plate1060decreases with theincreasing of ZL102and ZM5volume ratio. Composite interface composition ofauminum magnesium composite materials have been investigated by XRD, the resultsshow that new phase Al12Mg17，Mg2Si compound and no oxide have generated ininterface of1060and ZM5. Based on aluminum and magnesium composite samples ofdifferent parts of the hardness testing, the results indicate that the Vickers hardness ofZL102side was50or higher, the Vickers hardness of the middle baffle plate was in therange of20.9to20.9. ZM5magnesium alloys Vickers hardness was over100.Stretching experiment suggests that aluminum magnesium composites interfacecombined is firm. The interface bonding strength is greater than132MPa which is thetensile strength of ZL102. Impact toughness experiment of aluminum magnesiumcomposite materials express that impact toughness value of the composite materials isaround7.0J/mm2.Impact resistance performance of aluminum and magnesiumcomposite materials is poor.Through the study of annealing process of casting molding ZM5/ZL102aluminummagnesium composite materials, it is concluded that300℃temperature50min is thebest annealing process to aluminum magnesium composite materials.