Abstract: The fiber/resin/aluminum alloy laminated composites were fabricated by using laminated solidifying technics. With the help of SEM, the influence of surface-treatment techniques of aluminum alloy on the interfacial bond of the laminated composites was investigated. The results of property tests show that the fiber/resin/aluminum alloy laminated composite exhibits high strength and good formability. Furthermore, the results of damping experiments reveal that the composite has a much higher damping coefficient than the matrix aluminum alloy, which is favorable for anti-vibration.
Microstructure and damping property of fiber/resin/aluminum alloy laminated composite
Abstract:
The fiber/resin/aluminum alloy laminated composites were fabricated by using laminated solidifying technics. With the help of SEM, the influence of surface-treatment techniques of aluminum alloy on the interfacial bond of the laminated composites was investigated. The results of property tests show that the fiber/resin/aluminum alloy laminated composite exhibits high strength and good formability. Furthermore, the results of damping experiments reveal that the composite has a much higher damping coefficient than the matrix aluminum alloy, which is favorable for anti-vibration.
表1 纤维/树脂/铝合金复合材料和铝合金的性能 Table 1 Properties of fiber/resin/ aluminum alloy laminated composite and aluminum alloy
Material
Tensile strength/ MPa
Tensile modulus/ GPa
Bending strength/ MPa
Bending modulus/ GPa
Density/ (g·cm-3)
Fiber/resin/aluminum alloy laminated composites
245
44.1
465
34.6
2.0
LY12
180
77.0
2.7
图3 铝合金不同表面处理后复合材料的界面结合形貌 Fig.3 Morphologies of interfacial bond of composite after different surface-treatment of Al alloy (a)—Eroded with acide; (b)—Ball blast and eroded with acide
图4 阻尼实验模型 Fig.4 Model of damping experiment
表2 铝合金与纤维/树脂/铝合金叠层复合材料的阻尼性能 Table 2 Damping properties of aluminumalloy and fiber/resin/aluminumalloy laminated composite