Interfacial Characteristics and Mechanical Properties of Aluminum Foam Joined by Different Methods
SHAN Jiwan1,2, HU Zhengfei1,2, WANG Yu1,2, YAO Cheng1,2, ZHANG Zhen1,2
1 School of Material Science and Engineering, Tongji University, Shanghai 201800; 2 Shanghai Key Laboratory for R & D and Application of Metallic Functional Materials, Shanghai 201800
Abstract: Hot dipping method assisted by ultrasonic vibration was designed to join aluminum foam with Zn-10Al solder. Interfacial microstructure was investigated by OM, SEM and EDS. Standard tensile test and pendulum test were employed to examine the mechanical properties of the joints fabricated by different methods. Joints fabricated with ultrasonic vibration are compact and continuous while other joints fabricated without ultrasonic vibration have severe macro-defects. EDS analysis results show that the primary elements of filler alloy and the foam matrix diffused into each other and distributed continuously across the interface in the joint fabricated with ultrasonic vibration. Compared with joints fabricated without ultrasonic vibration or gluing directly with resin, the joints fabricated with ultrasonic vibration have much higher mechanical properties. It is believed that cavitation effect induced by ultrasonic vibration can remove the oxide film and refine the microstructure, which contributes to sound metallurgical bonding and compact joints.
单既万, 胡正飞, 王宇, 姚骋, 张振. 泡沫铝冶金连接及其界面结构与力学性能研究[J]. 《材料导报》期刊社, 2017, 31(8): 94-97.
SHAN Jiwan, HU Zhengfei, WANG Yu, YAO Cheng, ZHANG Zhen. Interfacial Characteristics and Mechanical Properties of Aluminum Foam Joined by Different Methods. Materials Reports, 2017, 31(8): 94-97.
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2017, Vol. 31 
