An investigation of the mechanical properties and bonding mechanism of Ti/Al-laminated composites fabricated by ultrasonic consolidation

Composites and Advanced Materials Pub Date : 2021-01-01 DOI:10.1177/2633366X20969193

J. Bo, R. Xue-ping, Han Yujie, Hou Hongliang, Wang Yaoqi

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引用次数: 1

Abstract

Foils such as 1100 aluminum and TC4 titanium were used as matrix materials for ultrasonic consolidation test of dissimilar metal materials, and the samples of Ti/Al-laminated composites were prepared. The effect of amplitude and static pressure on the interfacial bonding strength of Ti/Al foil was studied by adhesion test. The mechanical properties of Ti/Al-laminated composites were tested by electronic universal testing machine. The microstructure of Ti/Al foil interface was observed by transmission electron microscope. The results show that ultrasonic consolidation can achieve a good bonding interface of Ti/Al foil, and the bonding strength of the interface increases first and then decreases with the increase of static pressure, and increases monotonously with the increase of amplitude. The optimum adhesion strength is 58.08 N cm−1. The high temperature deformation constitutive model of Ti/Al-laminated composites is established and verified. The Ti/Al interface has metallurgical bonding, and the inner microstructure of Ti/Al matrix is obviously refined. The surface of titanium foil has formed nanocrystalline.

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超声固结制备Ti/ al层合复合材料的力学性能及结合机理研究

以1100铝箔和TC4钛箔为基体材料，对异种金属材料进行超声固结试验，制备了Ti/ al层合复合材料样品。通过粘接试验，研究了振幅和静压对Ti/Al箔界面粘接强度的影响。采用电子万能试验机对Ti/ al复合材料的力学性能进行了测试。透射电镜观察了Ti/Al箔界面的微观结构。结果表明:超声固结能使Ti/Al箔形成良好的结合界面，界面结合强度随静压的增加先增大后减小，随振幅的增加而单调增加;最佳粘接强度为58.08 N cm−1。建立并验证了Ti/ al复合材料的高温变形本构模型。Ti/Al界面出现了冶金结合，Ti/Al基体内部组织明显细化。钛箔表面已形成纳米晶。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Composites and Advanced Materials

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