Modeling of grain size via Friction Stir Processing parameter variationof AA۲۰۲۴

In the present study, friction stir processing (FSP) technique was carried out on theAA۲۰۲۴ sheet at different traverse speed (۶۳ to ۲۵۰ mm/min) and rotation speed (۳۱۵ to۸۰۰ rpm). The temperature and grain size of stirred zone (SZ) were measured and theirrelationship was analyzed and effect of FSP parameters on the grain size of SZ wasdetermined. Experiment and analytical investigations revealed that SZ grain sizecomplies the exponential temperature-dependent relationship via Ln d equation. Calculations indicate that a change in operationalvariables (rotation and traverse speeds) makes no variation in strain rate, and it isconstant

کلیدواژه ها:

Friction Stir Processing (FSP) ، Zener-Hollomon ، Aluminum Alloy ۲۰۲۴ ، Grain Size.