Dear Abdelaisalam Al-bakoosh,

1. AA5083 is a non-heat treatable Al wrought alloy the mechanical properties of which, given the solid solution hardening due its composition, are mainly determined by the work hardening.

2. Given the rather high Mg-content of this alloy, a possible  presence of the intermetallic beta-phase should be taken into account. Hence, homogenization temperature should be at least above the solidus-line of the Al-Mg  phase diagram.

3. The time & temperature combinations selected should be such that possible intermetallics dissolve while preventing excessive grain growth that might affect subsequent processing possibilities. The recipes of the alloy provider might give a clue of the optimum searched for, which can be checked with specimens homogenized some tens of centigrades above the solidus of the Al-Mg phase diagram for different homogenizing periods.

References

1. Light alloys by I.J. Polmear, latest edition, Edward Arnold UK

2. Materials Science in Design and Engineering, Delft NL 2012

http://www.delftacademicpress.nl/m017.php

You will get information about your query in the following link:

https://pure.strath.ac.uk/portal/files/246338/strathprints006560.pdf

Dear Abdelaisalam Al-bakoosh,

1. AA5083 is a non-heat treatable Al wrought alloy the mechanical properties of which, given the solid solution hardening due its composition, are mainly determined by the work hardening.

2. Given the rather high Mg-content of this alloy, a possible  presence of the intermetallic beta-phase should be taken into account. Hence, homogenization temperature should be at least above the solidus-line of the Al-Mg  phase diagram.

3. The time & temperature combinations selected should be such that possible intermetallics dissolve while preventing excessive grain growth that might affect subsequent processing possibilities. The recipes of the alloy provider might give a clue of the optimum searched for, which can be checked with specimens homogenized some tens of centigrades above the solidus of the Al-Mg phase diagram for different homogenizing periods.

References

1. Light alloys by I.J. Polmear, latest edition, Edward Arnold UK

2. Materials Science in Design and Engineering, Delft NL 2012

http://www.delftacademicpress.nl/m017.php

The time/temperatures typically reported in the literature start from 30min/450ºC

Dear Sir,

Pl see the Metal hand book

Thanks

Dr P K Maitra