Deformation homogeneity in accumulative back extrusion processing of AZ31 magnesium alloy

Influence of extrusion temperature on deformation behavior of Csf/AZ91D composite during semi-solid extrusion

“…The strain rates and von Misses equivalent strain rate can be obtained from Eqs. (14) and (15). Fig.…”

“…The strain field in the deformation zone can be calculated according to the deformation of the flow lines marked on the surface of the specimen. Some experiments have demonstrated that it is more reasonable and easier to analyze the deformation behavior during plastic deformation from the view of metal flow line than the general simple shear theory [15,16].…”

Compressive Deformation Behavior of an Ultrafine/Nano Grained AZ31 Magnesium Processed by Accumulative Back Extrusion

“…These texture components mostly place the magnesium crystal inclined to the ABE axis. The post-ABE texture may be discussed relying on the presence of favorable initial basal texture, where the c-axis is mostly oriented by 40-50° from the shear direction during ABE [22]. with the application of subsequent passes, there is a tendency of the basal plane lying parallel to TD, while the orientation of prismatic planes shows a random distribution around nD.…”

“…In the second step the back extruded material is forged back to the initial cross section by the outer punch completing one ABE cycle. The previous work showed that an average equivalent strain of 2 is induced during each step [22]. ABE process was conducted at a ram speed of 5 mm/min and temperature of 280°C.…”

“…Previous works mainly dealt with the developed strain patterns [22], microstructure [23,24] and texture evolutions [25] during ABE processing. The present research was initiated to examine the compressive deformation behavior of a wrought AZ31 magnesium alloy subjected to various ABE processing.…”