Microstructural characterisation of the stir processed zones of Al-Cu and Al-Al plate systems manufactured by hybrid friction stir channeling
- Karvinen H. ,
- Nordal D. and
- Vilaca P.
- Karvinen H. ,
- Nordal D. and
- Vilaca P.
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The hybrid friction stir channelling (HFSC) technique was employed to produce, in one action, a channel and a joint between dissimilar thickness overlapping Al plates and dissimilar Al-Cu plates, and the microstructural and geometrical features of the stir processed zones were investigated. The workpiece materials for the HFSC samples were AA 5083-H111 aluminium alloy (Al, 4.5%Mg) and oxygen-free Cu. HFSC processing was conducted using an ESAB Legio FSW 5U machine. Microstructural analyses were performed by optical microscopy, SEM and energy dispersive X-ray spectroscopy. Internal surfaces of the channels were examined with SEM and optical 3D scanning. Microhardness was measured with a micro-combi tester and Vickers hardness was determined from force-displacement curves using the Oliver-Phar method.
12th International Symposium, 26-28 Jun 2018, Session 7A: Techniques II, Paper 02
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