TJES: Abbas YA, Ibrahim NI, Hussein MK. Effects of Rice Husk Ash–Magnesium Oxide Addition on Wear Behavior of Aluminum Alloy Matrix Hybrid Composites. Tikrit Journal of Engineering Sciences 2018; 25 (4): 16-23.
Keywords: Aluminum hybrid composites, rice husk ash, magnesium oxide, stir casting.
Tikrit Journal of Engineering Sciences (2018) 25(4) 16- 23
Effects of Rice Husk Ash–Magnesium Oxide Addition on Wear Behavior of Aluminum Alloy Matrix Hybrid Composites
Abbas Y. Awad | Mohammed N. Ibrahim | Mohamed K. Hussein2 |
Refrigeration and Air Conditioning Dept. Technical College/ Kirkuk Northern Technical University, Iraq | Engineering Technical College-Baghdad, Middle Technical University, Baghdad, Iraq |
DOI: http://dx.doi.org/10.25130/tjes.25.4.04
Abstract
A336.0 aluminum alloy used to fabricate hybrid composites using rice husk ash (RHA) and MgO particles as reinforcement. The influence of the particles on the wear behavior of A336.0 aluminum alloy as a matrix that reinforced with MgO and RHA was investigated. Firstly, the rice husk burned at 700°C and then heat treated at 1100°C for 2 hrs. The ash characterized by X-ray florescence and X-ray diffraction. Less than 53 and 125 micron are the particle sizes of MgO and RHA respectively. The hybrid composites manufactured using stir casting method in two steps. A336.0 aluminum alloy reinforced with 4:0, 3:1, 2:2, 1:3 and 0:4 of RHA: MgO with 10 wt% total reinforcement phase. Optical microscope and X-ray diffraction were used to characterize the prepared hybrid composites. Dry sliding wear, hardness, apparent density, percentage of porosity and coefficient of friction were examined. Results indicated that porosity, apparent density and hardness enhanced with increasing MgO, while increasing wt% of RHA decreased the apparent density. Results indicated that with inceasing the applied load the wear rate of the composites was enhanced. Coefficient of friction varies inversely with applied load and wt% of RHA. Hardness increased with increasing RHA while the friction coefficient and the wear rate decreased. The minimum wear rates were at 10% RHA and Al-alloy-(RHA-MgO) [3:1] composites, while the minimum friction coefficients were at 10% RHA composites.
.
Download Full-Text PDF
References
[1] Saravanan S, Kumar MS. Effect of mechanical properties on rice husk ash reinforced aluminum alloy (AlSi10Mg) matrix composites. Procedia Enginee-ring 2013; 64: 1505-1513.
[2] Senapati AK, Sahoo PK, Singh A, Dash S, Manas VS. A review on utilization of waste material as reinforcement in MMCs. International Journal of Research in Advent Technology 2015; 3 (5): 15-20.
[3] Subrahmanyam A, Narsaraju G, Rao BS. Effect of rice husk ash and fly ash reinforcements on microstructure and mechanical properties of aluminium alloy (AlSi10Mg) matrix composites. International Journal of Advanced Science and Technology 2015; 76: 1-8.
[4] Suresh S, Mishra D, Srinivasan A, Arunachalam R, Sasikumar R. Production and characterization of micro and nano Al2O3 particle-reinforced LM25 Aluminium alloy composites. Journal of Engineering and Applied Sciences 2011; 6 (6): 94-97.
[5] Kala H, Mer K, Kumar S. A review on mechanical and tribological behaviors of stir cast aluminum matrix composites. Procedia Materials Science 2014; 6: 1951-1960.