Casting the following batches of Al-Cu, or Zn-Al, Al-Zn alloys

 Alloys used:
  1 . Al-2% Cu
  2 . Al-3% Cu
  3 . Al-4% Cu
  4 . Al-5% Cu
  5 . Al-10% Zn
  6 . Al-20% Zn
  7 . Al-25% Zn
  8 . Zn-0.5% Al

Selection of one of the above non-ferrous age hardenable alloys, such as Al-Cu, and Al-Zn binary alloy systems.  Preparing the required weights according to the compositions listed, followed by casting in a metallic mold.
Optimization of the temperature and time for peak aging of this alloy by artificial aging (T6 temper).
 Analysis requested:
  1 . Examination of the hardness and tensile properties of the as cast structure
  2 . Investigation of the microstructure in the as cast condition
  3 . Select the temperature necessary for Solution heat treatment (SHT) of the selected alloy (Phase diagram) for sufficient time followed by quenching
  4 . Measure hardness of the as SHT structure
  5 . Select a temperature necessary for peak aging, and optimize the peak aging time, by plotting the Hardness vs. time curve (showing under peak and over aging points).
  6 . Investigation of the microstructure in the aged samples at the various aging conditions (under, peak and over aging conditions).
  7 . Examine the tensile properties of the peak-aged structure.
Casting will be conducted in the casting lab, sample cutting and machining in workshop.
Tensile and hardness Analysis will be conducted in the Materials testing lab,
Microstructural investigation will be conducted in the materials testing labs for sample preparation, and microscopic analysis.
Microstructures must be presented in the report by original photomicrographs.  Please arrange with Saleh for casting and sample machining, Zakaria for mechanical testing
Eng. Reem for metallography