Twist Extrusion as a Tool for Grain Refinement in Al-Mg-Sc-Zr Alloys

Autor: Sergey Synkov, Alexey Reshetov, Dina Lotsko, Yu. V. Mil'Man, Viktor Varyukhin, Natalia Zakharova, Olexander Sirko, Dmytro Orlov, Andery Sharovsky, Alexandr Synkov, Vitaly Voropaiev
Rok vydání: 2006
Předmět:
Zdroj: NATO Science Series ISBN: 1402039212
DOI: 10.1007/1-4020-3923-9_10
Popis: Al-Mg-Sc-Zr alloys are attractive materials for aircraft and marine applications and have very good potentials for mechanical property enhancement by ultrafine grain structuring. The most developed technique for producing nanostructures has been equal channel angular extrusion. In this paper we describe our attempts on refining grain in these alloys by the twist extrusion technique. It was shown that twist extrusion allows to obtain fairly homogeneous structure with grain sizes dav=0.33, 0.08, and 0.65 µm. This structure is thermally stable up to 500°C for 1 hour.
Databáze: OpenAIRE