Journal
SCRIPTA MATERIALIA
Volume 77, Issue -, Pages 25-28Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2014.01.008
Keywords
Friction stir welding; Dissimilar welding; Aluminium alloys; Steels; Mechanical properties
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Funding
- Interuniversity Attraction Poles Program from the Belgian state through the Belgian Policy agency [IAP7/21]
- FRIA grant from the National Funds for Scientific Research (FRS-FNRS)
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A new lap welding process for dissimilar materials has been developed and tested for steel-to-aluminium joints. A simple cylindrical tool is rotated and translated over the top steel plate, leading to a transient partial melting of the bottom aluminium plate and the formation of intermetallic reaction layers of FeAl3 and Fe2Al5 as thin as 2.5 mu m. Lap shear tests of the welds show very good resistance with fracture mostly in the base materials. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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