Interfacial microstructure of Al/Ta dissimilar joints by magnetic pulse welding

Wentao Zhang; Yuhua Chen; Jilin Xie; Timing Zhang; Shanlin Wang; Xiao Song; Limeng Yin

Journal of Materials Research and Technology (Mar 2023)

Interfacial microstructure of Al/Ta dissimilar joints by magnetic pulse welding

Wentao Zhang,
Yuhua Chen,
Jilin Xie,
Timing Zhang,
Shanlin Wang,
Xiao Song,
Limeng Yin

Affiliations

Wentao Zhang: Jiangxi Key Laboratory of Forming and Joining Technology for Aviation Components, Nanchang Hangkong University, Nanchang 330063, China
Yuhua Chen: Jiangxi Key Laboratory of Forming and Joining Technology for Aviation Components, Nanchang Hangkong University, Nanchang 330063, China; School of Metallurgy and Material Engineering, Chongqing University of Science and Technology, Chongqing 401331, China; Corresponding author. Jiangxi Key Laboratory of Forming and Joining Technology for Aviation Components, Nanchang Hangkong University, Nanchang 330063, China
Jilin Xie: Jiangxi Key Laboratory of Forming and Joining Technology for Aviation Components, Nanchang Hangkong University, Nanchang 330063, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China; Corresponding author. State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
Timing Zhang: Jiangxi Key Laboratory of Forming and Joining Technology for Aviation Components, Nanchang Hangkong University, Nanchang 330063, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
Shanlin Wang: Jiangxi Key Laboratory of Forming and Joining Technology for Aviation Components, Nanchang Hangkong University, Nanchang 330063, China
Xiao Song: Jiangxi Key Laboratory of Forming and Joining Technology for Aviation Components, Nanchang Hangkong University, Nanchang 330063, China
Limeng Yin: School of Metallurgy and Material Engineering, Chongqing University of Science and Technology, Chongqing 401331, China

Journal volume & issue: Vol. 23
pp. 4167 – 4172

Abstract

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Magnetic pulse welding (MPW) is performed to join Al/Ta dissimilar metals possessing no mutual solubility. Using scanning electron microscopy (SEM) and transmission electron microscopy (TEM) and energy-dispersive X-ray spectroscopy (EDS), the Al/Ta interface has been characterized in detail. The results show that the inhomogeneity of the MPW process resulting in the formation of different types of interfaces at the interface, namely, transition zone, irregular interface and flat interface. The co-existence of nanocrystalline/amorphous bi-phase interface and continuous intermetallic compound (IMC) at the same cooling rate proves that high strain is the main cause of interfacial amorphous. Nanoscale crystallization of amorphous is the result of the limited time and energy input at the interface. This finding challenges the general view on magnetic pulse welding of dissimilar metals. The results can be used in the development of new joints for the metals possessing no mutual solubility.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

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