Transient Liquid Phase Bonding of Al-6063 to Steel Alloy UNS S32304

Transient liquid phase (TLP) bonding of 6063 aluminum alloy (Al-6063) and duplex alloy 2304 stainless steel (UNS S32304) was performed using copper foil as an interlayer between the base metals. A compression load was applied normal to the specimens. Metallurgical examination of the produced joints...

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Bibliographic Details
Published in:Journal of Manufacturing and Materials Processing 2018-09, Vol.2 (3), p.58
Main Authors: Saleh, Mohamed I., Roven, Hans J., Khan, Tahir I., Iveland, Terje
Format: Article
Language:English
Subjects:
Aluminum alloys
Aluminum base alloys
Automobile industry
Automobiles
Bond strength
Compression loads
Copper
Corrosion
Corrosion resistance
Corrosion tests
Cost control
duplex stainless steel
Duplex stainless steels
Energy consumption
eutectic
Feasibility studies
Foils
Friction stir welding
Interfacial bonding
Interlayers
Intermetallic compounds
Lasers
Liquid phases
Mechanical properties
Metallurgy
Metals
Researchers
Stainless steel
Steel alloys
TLP bonding
Transient liquid phase bonding
Vehicles
Wettability
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Summary:Transient liquid phase (TLP) bonding of 6063 aluminum alloy (Al-6063) and duplex alloy 2304 stainless steel (UNS S32304) was performed using copper foil as an interlayer between the base metals. A compression load was applied normal to the specimens. Metallurgical examination of the produced joints showed three distinct regions including a reaction zone, diffusion affected zone, and the base metals. The diffusion of copper into aluminum resulted in an Al–Cu eutectic structure. However, the oxide layer on the aluminum surface controlled the dissolution behavior of copper and the extent of its wettability with the base metals. Although voids and intermetallic compounds were detected at the interfaces of the processed joints, a defect free joint was produced at 570 °C. In addition, the results from corrosion tests showed that the use of copper as an interlayer decreased the corrosion resistance of the joints. However, increase in thickness of the joining reaction zone with increasing bonding temperature was observed to increase corrosion resistance.
ISSN:2504-4494
2504-4494
DOI:10.3390/jmmp2030058