Abstract
Aluminum – based metal matrix composite are widely used in industrial applications compared with conventional and unreinforced alloy. The composite materials usually exhibit a higher strength both at elevated and ambient temperature, as well as wear resistance. The production of composite materials which contain different weight percentage of ZrO2 (0.5, 1.5 and 2.5wt %) by stir casting process. The mechanical properties of the base alloy and composite were evaluated by using tensile and hardness tests. The microstructure inspection by optical microscopy, scanning electron microscope and energy dispersive spectroscopy (EDS) were utilized to study the fracture surface topography. The results represent that the hardness, strength of yield and tensile strength increased with increasing the weight % of ZrO2 to 2.5 % while the elongation decreased. The microstructure inspection by optical microscope shows that the dendrites structure and the particles distribution in matrix without any voids. Furthermore, the grain size refining with the weight percentage of weight reinforcement elevated.
Highlights
The new applications of industrial engineering require advanced materials improvements by lowering the thermal expansion coefficient, production of high thermal stability at high temperatures for engine components, best wear resistance, high specific stiffness, and satisfactory corrosion resistance in defense applications [1, 2]
The results present best value in" hardness", friction coefficient, good strength and lowering wear rate with increasing the weight percentage of reinforcement particles additions
The results represent increasing in specific modulus, specific strength, damping capacity and good wear resistance when compared with base alloy
Summary
The new applications of industrial engineering require advanced materials improvements by lowering the thermal expansion coefficient, production of high thermal stability at high temperatures for engine components, best wear resistance, high specific stiffness, and satisfactory corrosion resistance in defense applications [1, 2]. The composites material contains a nonmetallic reinforcement (SiC, B4C, TiC, TiB2, ZrO2, WC, Al2O3, TiO2, etc.) matrix which produce beneficial properties than base metal aluminum alloy [3]. Madhusdhn et al 2016 [4] studied the effects of ZrO2 P reinforcement addition on mechanical properties “hardness “and resistance of wear for Al-7075 and its composites using varying weight percentage 0-8wt% the composite manufacturing by stir casting. The results present best value in" hardness", friction coefficient, good strength and lowering wear rate with increasing the weight percentage of reinforcement particles additions. The stir casting method was used to produce the composites by adding cenosphere particles to Al-7075alloy. The aim of this research is to study the changes in microstructure & mechanical properties by adding ZrO2 particulate reinforcement with different weight percent (0.5, 1.5, and 2.5%) on the microstructure and mechanical properties of alloy Al-Zn-Mg
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
