AZX series flame-resistant Mg alloy joints formed using asymmetry double-sided FSW with different lower tool rotation rate
- Zhou M.R. ,
- Morisada Y. and
- Fujii H.
- Zhou M.R. ,
- Morisada Y. and
- Fujii H.
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Flame resistant AZX 612 (Mg, 6%Al, 1%Zn, 2%Ca) magnesium alloy joints were fabricated by asymmetric double sided friction stir welding (FSW) and the influence of tool rotational speed on their microstructure and mechanical properties was investigated. Welding was performed using an upper tool with a threaded probe and a flat lower tool at tool rotational speeds of 500 or 600 rpm, travel speed of 500 mm/min and tool tilt angle of 3 deg. Joint microstructure and texture were observed by optical microscopy, SEM and electron backscattered diffraction. Mechanical properties were characterised by tensile tests. The enhanced mechanical properties of AZX alloy joints with a balanced heat input and randomised metal flow during the welding process are discussed.
11th International Symposium, 17-19 May 2016, Session 6B: Techniques II, Paper 02
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