Growth behaviour of intermetallic compound in weld interface of dissimilar metal weld by friction stirring
- Yasui T. ,
- Yamaguchi M. and
- Fukumoto M.
- Yasui T. ,
- Yamaguchi M. and
- Fukumoto M.
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Dissimilar joints between AA 6063 aluminium alloy and S45C steel were fabricated by friction stir welding and the growth behaviour of intermetallic compounds (IMCs) at the weld interface during PWHT was investigated. Welding was performed at a rotational speed of 2000 rpm, travel speed of 500 mm/min and offset of 0.05 mm. PWHT was conducted with a heating stage in an argon atmosphere at a temperature of 400-500 deg.C for a duration of 60-180 min. Microstructure and IMC growth were observed by SEM, TEM and in situ synchrotron X-ray diffraction. The effect of IMC layer thickness on weldment tensile strength was studied. The growth of Fe2Al5 and FeAl phases at the interface is discussed.
11th International Symposium, 17-19 May 2016, Session 9B: Microstructure and Dissimilar, Paper 01
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