Professor Dr. Abdullah Dhayea, faculty member in the Department of Mechanical Engineering – College of Engineering – University of Baghdad, participated in the Second Innovation and Creativity Exhibition with scientific research titled:
“The Effect of Adding Yttrium Oxide Microparticles on the Wear Resistance of Aluminium Alloy AA5083”
The exhibition was held in conjunction with World Intellectual Property Week, on Tuesday, April 29, 2025, at Al-Ameed University under the supervision of the Al-Abbas’s Holy Shrine in Karbala. The study aimed to enhance the mechanical properties and wear resistance of AA5083 aluminum alloy by adding yttrium oxide (Y₂O₃) microparticles at various weight percentages (0%, 3%, 6%, and 9%), with particle sizes ranging from 40 to 60 micrometers. The composite materials were produced using the stir casting method.
Key findings of the research include:
- A significant increase in hardness of the composite compared to the unreinforced alloy.
- Homogeneous distribution of yttrium oxide particles within the alloy’s microstructure.
- A gradual reduction in wear rate with increasing reinforcement percentage, with the best performance observed at 9% by weight.
Recommendation:
The study recommends using 9 wt.% yttrium oxide microparticles to improve the wear resistance and mechanical properties of AA5083 aluminum alloy, especially in industrial applications requiring high performance under friction and wear conditions.
At the conclusion of the event, Dr. Abdullah received a Certificate of Appreciation from the university president and was honored with the Award of Innovation and Excellence, in recognition of his scientific contribution to advancing innovation and research in Iraq
