Diffusion Bonding of 1420 Al–Li Alloy Assisted by Pure Aluminum Foil as Interlayer
1
Power Beam Processing Laboratory, AVIC Manufacturing Technology Institute, Beijing 100024, China
2
Beijing Aeronautical Manufacturing Technology Research Institute, Beijing 100024, China
3
School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China
*
Authors to whom correspondence should be addressed.
Materials 2020, 13(5), 1103; https://doi.org/10.3390/ma13051103
Received: 1 December 2019
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Revised: 3 February 2020
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Accepted: 4 February 2020
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Published: 2 March 2020
(This article belongs to the Section Manufacturing Processes and Systems)
The Al–Li alloy is becoming popular for aerospace application owing to their low density, high specific strength, good corrosion resistance, etc. The diffusion bonding/superplastic forming (DB/SPF) structure of titanium alloy has been widely used in the aerospace industry. In order to broaden the application of Al–Li alloy, it is necessary to develop its diffusion bonding and superplastic forming (DB/SPF) technology. In the present study, diffusion bonding of 1420 Al–Li alloy assisted by pure aluminum foil was conducted on Gleeble-3500 thermal simulation system under different bonding parameters, the results show that the bonding temperatures have direct influence on the interface microstructure and bond strength of joints. Meanwhile, when the pure aluminum interlayer was introduced into the diffusion bonding process, the alloying element diffusion across the bond can improve the interface integrity and the mechanical properties. The joint formation mechanism with interlayer was investigated in detail, the development and application of this method was explored.
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MDPI and ACS Style
Wu, F.; Chen, W.; Zhao, B.; Hou, H.; Zhou, W.; Li, Z. Diffusion Bonding of 1420 Al–Li Alloy Assisted by Pure Aluminum Foil as Interlayer. Materials 2020, 13, 1103. https://doi.org/10.3390/ma13051103
AMA Style
Wu F, Chen W, Zhao B, Hou H, Zhou W, Li Z. Diffusion Bonding of 1420 Al–Li Alloy Assisted by Pure Aluminum Foil as Interlayer. Materials. 2020; 13(5):1103. https://doi.org/10.3390/ma13051103
Chicago/Turabian StyleWu, Fan, Wei Chen, Bing Zhao, Hongliang Hou, Wenlong Zhou, and Zhiqiang Li. 2020. "Diffusion Bonding of 1420 Al–Li Alloy Assisted by Pure Aluminum Foil as Interlayer" Materials 13, no. 5: 1103. https://doi.org/10.3390/ma13051103
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