The Benefits of Trace Cu in Wrought Al-Mg Alloys

  title={The Benefits of Trace Cu in Wrought Al-Mg Alloys},
  author={S. Medrano and H. Zhao and Baptiste Gault and Fr{\'e}d{\'e}ric De Geuser and Chad W. Sinclair},
  journal={arXiv: Materials Science},
The softening and strengthening contributions in pre-deformed and aged Al-Mg-Cu alloys containing 3wt.%Mg and 0.5wt.%Cu are evaluated by a combination of microscopy, mechanical testing and modelling. A refined phenomenological model for the work hardening response, accounting for the separate effects of recovery and precipitation, is shown to be suitable for an unambiguous determination of the precipitation hardening contribution in these alloys. Significantly, it is found that the mechanical… 


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