Reza Haghayeghi

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Process Development and Grain Refinement

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Process Development and Grain Refinement   Haghayeghi, E.J. Zoqui, “Process Development and Grain Refinement”, Journal of La Metallurgia Italiana, Vol.108, 2016, PP.149-152.   The effect of Ultrasonic Treatment (UT) and Electro Magnetic Stirring (EMS) were assessed separately and in combination prior to high pressure die-casting of AA5754. Results suggested by utilization of UT the grain…

Reza Haghayeghi

grain refinement of Al alloys through liquid shearing

Reza HaghayeghiNo Comments, , , , , , , ,

Write By Reza Haghayeghi :  Abstract The influence of intensive shearing was studied at above liquidus temperature on solidification process of two common industrial aluminium alloys. The shearing effects on the final microstructure of AA5754 and AA7449 aluminium alloys were investigated. The result of shearing on the grain size was explored and compared with non-sheared…