It was reported that additions of Mn to the Al–Si alloy formed thermally stable dispersoids,improving creep properties. However,there are no studies reporting on the
role of Mn in changing the low cycle fatigue behavior,which is of key importance in the performance of automotive parts. Although studies on strain-controlled low-cycle fatigue(LCF)provide important input into the design of engineering components most of the literature data are focused on tensile properties and high-cycle fatigue(HCF) behavior of Al alloys.To date,there have been no studies on the LCF resistance of the cast Al–Si–Cu–Mg
alloys,in particular the Al–Si–Cu–Mg alloys modified with Mn.