Effects of second-phase particles on homogeneity of Al alloy specimen during twist extrusion |
Paper ID : 1614-UFGNSM-FULL |
Authors: |
Shahab Ranjbar1, Seyed Ali Asghar Akbari Mousavi *2 1- 2School of Metallurgy and Materials Engineering, University of Tehran P. O. Box: 14395-731, Tehran, Iran |
Abstract: |
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 second-phase particles at the center and corner caused a mechanically homogenous section. |
Keywords: |
Twist extrusion, Thermomechanical process, Aging, Second phase particles |
Status : Paper Accepted (Oral Presentation) |