The effect of some additives on some properties of Al-Si alloys of eutectic composition
Dissertant
Thesis advisor
University
University of Technology
Faculty
-
Department
Department of Materials Engineering
University Country
Iraq
Degree
Master
Degree Date
2010
English Abstract
The Present work encompasses the effect of some additives of wt (TiO2 & ZrO2.Y2O3) with a fixed amount of MgO about (1.0 % wt) on microstructure and some mechanical properties of the eutectic Al-12 % wt Si alloy.
The addition of 0.4 % wt TiO2, 0.6 % wt ZrO2.Y2O3 and 0.1 % wt of MgO had revealed the best modification compared with the other percentages of the mentioned additions, i.e.
the hardness about (24.49 BH) with lower wear rate of (7.5*10-9 cm3.cm-1) and a maximum value of impact resistance of (0.053 J / mm2) with tensile strength about (100 Mpa Also the research studies the effect of adding 2 %wt of (CaCl2 & CaF2) or CaF2 alone on grain refinement of the eutectic Al-Si alloy.
It was found that the addition of (CaCl2 & CaF2) had refined the eutectic phase in the Al-12 %wt Si alloy and revealed lower wear rate i.e.
(6*10-9 cm3.cm-1) and hardness was (39.70 BH).
Furthermore, the maximum value occurred in the impact resistance by adding 2 % wt of CaF2 with CaCl2 to the molten eutectic Al-Si alloy, i.e.
(0.0516 J / mm2) and ultimate tensile strength of (117 Mpa).
Main Subjects
Topics
American Psychological Association (APA)
Shukr, Rabab Hamid. (2010). The effect of some additives on some properties of Al-Si alloys of eutectic composition. (Master's theses Theses and Dissertations Master). University of Technology, Iraq
https://search.emarefa.net/detail/BIM-305120
Modern Language Association (MLA)
Shukr, Rabab Hamid. The effect of some additives on some properties of Al-Si alloys of eutectic composition. (Master's theses Theses and Dissertations Master). University of Technology. (2010).
https://search.emarefa.net/detail/BIM-305120
American Medical Association (AMA)
Shukr, Rabab Hamid. (2010). The effect of some additives on some properties of Al-Si alloys of eutectic composition. (Master's theses Theses and Dissertations Master). University of Technology, Iraq
https://search.emarefa.net/detail/BIM-305120
Language
English
Data Type
Arab Theses
Record ID
BIM-305120