Texture gradient in a rectangular extruded Al60Mg40 metal matrix composite

Sanamar, Soheil GND; Brokmeier, Heinz-Günter GND; Schell, Norbert

By applying cold extrusion, an elemental metal powder composite Al60Mg40 was prepared. The texture gradient was measured over the cross-section of the extrusion profile using synchrotron radiation while the bulk texture was obtained by neutron diffraction. The aluminum phase shows a typical texture component of plane-strain deformation in the middle part of the sample and a uniaxial deformation texture at the surface. In the central region of the extruded bar, the (0002) Mg pole figure shows a split along the extrusion direction (±ED), which also has been observed in rare-earth containing magnesium alloys. These two poles twist towards the transverse direction on moving towards the surface of the extruded bar; one pole moves to +TD and the other one to −TD. The angle of twist increases towards the TD surface.

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Sanamar, Soheil / Brokmeier, Heinz-Günter / Schell, Norbert: Texture gradient in a rectangular extruded Al60Mg40 metal matrix composite. 2019.

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