Indirect Extrusion of Rapidly Solidified Al-base Alloy Powder/ Flakes and Deformation Behavior of the Extrudate
Soeren Mueller, R&D Center of Extrusion, TU Berlin, Berlin, Germany
Klaus Mueller, R&D Center of Extrusion, TU Berlin, Berlin, Germany
Manoj Kumar, Technical University Vienna, Vienna, Austria
Track: EXTRUSION/DIE, THEORETICAL - Dies and Modeling
ABSTRACT --- Gas atomization and melt spinning are rapid solidification
techniques for preparing new alloy compositions/structures. Rapidly solidified
dispersion-strengthened Al-Ni-Mn-Cu alloy powder/flakes of nominal
composition prepare rods via hot indirect extrusion. Powder/flakes are compacted
into billet shape by cold isostatic pressing, preheated at 623 Kelvin (K), and
indirect extruded. Powder/flakes’ comparisons due to extrusion forces are
presented. Microstructure investigation examines mechanical properties at room
and elevated temperatures.
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