Abstract
Lap joint test of the Ti6Al4V titanium alloy with 0.3 mm thickness was conducted by ultrasonic consolidation. The effects of different consolidation time on welded joint microstructure and mechanical properties were studied by optical microscopy(OM), energy dispersive spectrometer (EDS), universal testing machine and other analytical methods. The results showed that the; Mechanical embedment which occurred at the primary stages of ultrasonic consolidation would disappear with the consolidation time increased; dislocation diffusion is the main diffusion way of interfacial atoms, the diffusion of gap and vacancy are less affected. The influence of pretreatment of the oxide film on the tensile shear strength reduced with the increase of welding time. The maximum shear force of the joint is 1940 N, the interface hardness reaches the maximum value when the welding pressure is 0.5 MPa and the welding time is 125 ms.
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The authors gratefully acknowledge the National Natural Science Foundation of China (51365039) for the financial support of this research work.
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Zhu, Z., Li, M., Su, Z., Zhang, D., Zhang, Y. (2018). Study on Microstructure and Mechanical Properties of Ti6Al4V Titanium Alloy Joint with Ultrasonic Consolidation. In: Chen, S., Zhang, Y., Feng, Z. (eds) Transactions on Intelligent Welding Manufacturing. Transactions on Intelligent Welding Manufacturing. Springer, Singapore. https://doi.org/10.1007/978-981-10-5355-9_11
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DOI: https://doi.org/10.1007/978-981-10-5355-9_11
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