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The influence of thermomechanical treatment and chemical composition on recrystallization of Al-Mg alloys

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Authors
Radović, Ljubica
Nikačević, M.
Popović, M.
Romhanji, Endre
article (publishedVersion)
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Abstract
Recrystallization behaviour of AlMg3, AlMg4.5Mn and AlMg6Mn alloy plates subjected to different thermomechanical treatments (TMTs), has been studied by means of optical microscopy and hardness measurements. Applied two-stage annealing at 565°C/6h + 450°C/4h simulated homogenization and heterogenization processes, respectively, and was followed by cold rolling with 20, 40 and 60%. Final annealing was performed for 3h at 250, 280 and 350°C, with slow and rapid heating rates (0.6 and 25°C/min). Increase of rolling reduction and temperature, either individually or in combination, promotes recrystallization during final annealing. The recrystallization process was found non-simply related to the chemical composition, but a rather complex recrystallization behaviour of these alloys is attributed to the effect of the size and distribution of the second phase particles formed during the thermomechanical treatment. .
Keywords:
Al-Mg alloys / chemical composition / cold deformation / recovery / heating rate / recrystallization
Source:
Metalurgija, 2007, 13, 4, 259-267
Publisher:
  • Savez inženjera metalurgije Srbije, Beograd

ISSN: 0354-6306

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URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1051
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  • Radovi istraživača / Researchers’ publications (TMF)
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Tehnološko-metalurški fakultet

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