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Senior Lecturer at science and research branch of Azad University
Biography of Reza Haghayeghi
I am a well trained metallurgist who has extensive experience in the field of Solidification and Casting(e,g. Grain refinement, twin screw melt conditioning technique, Die casting, twin roll casting, Direct cgill casting , gravity casting,..). As an inquisitive and enthusiastic person, I am interested in to work on the research area of casting and explore the related solidification phenomena to improve the scientific understanding of this subject of metallurgy. My communication skills, team working, problem solving as well as personal effectiveness were cooperating all-in-all to fulfill the projects I was involved in to their highest level of standard.
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An investigation on primary Si refinement by Sr and Sb additions in a hypereutectic Al-Si alloy Reza Haghayeghi , Giulio Timelli Hypereutectic Al-Si alloys have got interests in many industrial applications such as automotive and wear-resistance environments. However, the hypereutectic Al-Si alloys have a few drawbacks. The acicular shape of eutectic Si acts as a…
An Investigation onWear Properties of A390 Alloy by Rare Alloying Elements Giulio Timelli, Reza Haghayeghi, Giulia Scampone and Alessandro De Mori Abstract Hypereutectic Al–Si alloys are good candidates for many applications including automotive industry and heavy wear environments. Among them, A390 is widely used for cylinder blocks, transmission pumps, and air compressor housings. Due to…
Effect of pressure cycles and thermal conditions on the reliability of a high-pressure diecast Al alloy heating radiator Giulio Timelli, Alessandro De Mori, Reza Haghayeghi The fatigue reliability of a diecast AlSi11Cu2(Fe) alloy radiator has been investigated at different pressure amplitudes and thermal exposure. Based on failure mode analysis, two failure mechanisms are observed…