8006 alloy system with main alloying element ironIron and manganese (AlFe1.5Mn0.5) is one of the most common alloys in use for high strengthStrength household foil and for flexible food containers. This paper presents the effect of ironIron content variation on 8xxx alloy grain structureGrain structure after the as-cast homogenizationHomogenization heat treatmentHeat treatment. Also, the effect of ironIron content variation on the recrystallization response of the alloy was shown after intermediate annealingAnnealing gauge. CCCarbon Capture and Storage (CCS) 8006 alloy coils with low and high ironIron content were produced from the continuous caster. Laboratory homogenizationHomogenization heat treatmentHeat treatment test shows that low ironIron content coils developed large surface grains after the standard homogenizationHomogenization heat treatmentHeat treatment practice. Lowering the homogenizationHomogenization temperature eliminates the appearance of large grains. Based on the laboratory homogenizationHomogenization study results, a thermo-mechanical process with a low temperature homogenizationHomogenization was designed for the high and low ironIron content 8xxx coils. Foil stock gauge samples were collected from the low and high ironIron content 8006 coils which were processed using the new modified thermo-mechanical process. The softening curve at the final foil stock gauge showed an acceleration of the recrystallization process when the ironIron content of the alloy was low.

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The Effect of Iron Content Variation in 8xxx Series Alloy at Homogenization and Intermediate Annealing Stage

  • Dionysios Spathis,
  • John Tsiros,
  • Andreas Mavroudis

摘要

8006 alloy system with main alloying element ironIron and manganese (AlFe1.5Mn0.5) is one of the most common alloys in use for high strengthStrength household foil and for flexible food containers. This paper presents the effect of ironIron content variation on 8xxx alloy grain structureGrain structure after the as-cast homogenizationHomogenization heat treatmentHeat treatment. Also, the effect of ironIron content variation on the recrystallization response of the alloy was shown after intermediate annealingAnnealing gauge. CCCarbon Capture and Storage (CCS) 8006 alloy coils with low and high ironIron content were produced from the continuous caster. Laboratory homogenizationHomogenization heat treatmentHeat treatment test shows that low ironIron content coils developed large surface grains after the standard homogenizationHomogenization heat treatmentHeat treatment practice. Lowering the homogenizationHomogenization temperature eliminates the appearance of large grains. Based on the laboratory homogenizationHomogenization study results, a thermo-mechanical process with a low temperature homogenizationHomogenization was designed for the high and low ironIron content 8xxx coils. Foil stock gauge samples were collected from the low and high ironIron content 8006 coils which were processed using the new modified thermo-mechanical process. The softening curve at the final foil stock gauge showed an acceleration of the recrystallization process when the ironIron content of the alloy was low.