Modelling the Work Hardening Behaviour of AlMgMn Alloys

Abstract:

A recent work hardening model developed by Nes and co-workers at NTNU, Trondheim provides a unified theory for warm and cold stress-strain behaviour which in principle accounts for alloy aspects such as effect of dispersoids (size and number density) and solute content, including dynamic strain aging for Mg containing aluminium alloys. In the present paper the applicability and predictive power of the model are tested for multicomponent alloys to account for the combined effect of different solute elements in solid solution and dispersoids, with a special focus on hot deformation of a range of Al-Mg-Mn alloys. It is demonstrated that the model, without any re-tuning, only accounting for the variations in alloy chemistry and deformation conditions is capable of predicting the stress-strain for a range of compositions, strain rates and temperatures.

• Periodical: Materials Science Forum (Volumes 638-642)
• Pages: 285-290
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.638-642.285
• Online since: January 2010
• Authors: Knut Marthinsen, Shahriar Abtahi, Bjørn Holmedal, Jesper Friis, Erik Nes, Trond Furu
• Keywords: Aluminum (Al), Non-Heat-Treatable Alloy, Particle Effects, Solute Effects, Work-Hardening

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DOI: 10.1007/s11661-999-0025-9

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