Characterization and Mechanical Properties of the ZA-12 Hybrid Composites Reinforced with Nano Ceramic Particles | ||
| Engineering and Technology Journal | ||
| Article 12, Volume 39, 4A, April 2021, Pages 642-652 PDF (1.34 M) | ||
| DOI: 10.30684/etj.v39i4A.1945 | ||
| Authors | ||
| Aveen K. Yawer* 1; Niveen J. Abdulkader2; Dr. Ahmed A. Zainalaadbeen3 | ||
| 1Materials Engineering Department, University of Technology, Baghdad -Iraq mae.19.43@grad.uotechnology.edu.iq | ||
| 2Materials Engineering Department, University of Technology, Baghdad -Iraq 130012@uotechnology.edu.iq | ||
| 3Materials Engineering Department, University of Technology, Baghdad –Iraq 130028@uotechnology.edu.iq | ||
| Abstract | ||
| In this work, nanosized Boron nitride and silicon carbide reinforced ZA - 12 matrix hybrid composites were produced using stir casting technique with using of aluminum scrap (AA 2024), pure Al (electrical wires) and zinc scraps. Microstructure Observation was revealed by using scanning electron microscopy, and the analysis showed a uniform distribution of (SiC and BN) hybrid nanoparticles for the Zn-Al matrix. Also, an optical microscope was used to display the dendritic structure and reinforcement particles that dispersed uniformly in the matrix. Mechanical tests results confirmed that the hardness and the compression was increased with increasing the hybrid nanoparticle's percentage, whereas the wear rate decreased as the reinforcing materials increased. Since nanoparticles restrict dislocation movement, the mechanical properties are enhanced. The improvement ratio in hardness after addition was 26%., and in wear rate was 24% and for the compression strength the improvement was (19%). | ||
| Keywords | ||
| ZA-12 alloy; Stir casting; Hybrid composite; nanoparticles; Hardness; Wear Rate and compression strength | ||
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