Intermetallic particle evolution during ECAP processing of a 6082 alloy
作者： Giuliano Angella , Paola Bassani , Ausonio Tuissi , Maurizio Vedani
DOI: 10.2320/MATERTRANS.45.2182
关键词: Severe plastic deformation 、 Ductility 、 Materials science 、 Metallurgy 、 Ultimate tensile strength 、 6082 aluminium alloy 、 Isothermal process 、 Alloy 、 Intermetallic 、 Pressing
摘要: Intermetallics evolution in a commercial 6082 aluminium alloy severely deformed by Equal Channel Angular Pressing was investigated. Chemical electron probe microanalyses allowed to state that the alloy, Si-rich phases were progressively dissolved whereas amount and composition of Fe-Mn-Si containing intermetallics remained substantially unchanged. The moderate hardening effect measured on isothermal aging at 130 � C ECAP processed samples accounted for reprecipitation during severe plastic deformation. Tensile tests fractographic analyses broken specimens showed featured relatively high ductility unaltered fracture mode even after several passes.
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