Effect of a Zn interlayer on dissimilar FSSW of Al and Cu
| Autor: | Roland Taillard, Marie-NoËlle Avettand-Fènoël, A. Boucherit |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Materials science Precipitation (chemistry) Mechanical Engineering Metallurgy 02 engineering and technology Welding 021001 nanoscience & nanotechnology Microstructure 01 natural sciences law.invention Shear (sheet metal) Lap joint Mechanics of Materials law 0103 physical sciences Ultimate tensile strength lcsh:TA401-492 lcsh:Materials of engineering and construction. Mechanics of materials General Materials Science Composite material 0210 nano-technology Spot welding Joint (geology) |
| Zdroj: | Materials & Design, Vol 124, Iss, Pp 87-99 (2017) |
| ISSN: | 0264-1275 |
| DOI: | 10.1016/j.matdes.2017.03.063 |
| Popis: | The present paper focuses on the role played by a Zn interlayer in the improvement of the mechanical behavior of Al-Cu Friction Stir Spot Welds. An unusual configuration of lap joint with Cu at the top surface as well as rather thick plates was considered. The effects of the tool plunge depth exceeding or not the top plate thickness and of various Zn layer thicknesses on the microstructure and mechanical properties of the joint were investigated. Zn at once hampers the formation of the deleterious Al4Cu9 compound while favoring the τ′ phase precipitation. Over the range considered in this study, the Zn layer thickness presents no obvious effect on the shear lap tensile properties. At last, various ways of welding improvement are proposed. Keywords: Friction stir spot welding, Aluminum, Copper, Zinc interlayer, Microstructure, Mechanical properties |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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