EFFECTS OF SECOND-PHASE PARTICLES ON HOMOGENETY OF ALALLOY SPECMENDURING TWST EXTRUSION

Performing different thermomechanical processes, including natural and artificial aging and sequential passes of twist extrusion, produced noticeably homogeneous specimens. Consequent of heterogeneous strain distribution pattern of twist extrusion throughout the transverse section and the existence of precipitates with different sizes across the mentioned section resulted in a homogenous grain distribution. The balance of two different strengthening mechanisms of grain size and secondphase particles at the center and corner caused a mechanically homogenous section.Keywords:

کلیدواژه ها:

Aluminum 2011 ، Twist extrusion ، Thermomechanical processing ، Second-phase particles