Fabrication and Analysis of Aluminum - Alumina Metal Matrix Composites Using Powder Metallurgy Technique

• Published in: IOP conference series. Materials Science and Engineering Vol. 870; no. 1; pp. 12150 - 12159
• Main Authors: Juber, M H, Majeed, A H, Hamza, M S
• Format: Journal Article
• Language: English
• Published: IOP Publishing 01.06.2020
• Subjects: alumina.GG; aluminium; Metal matrix composite; powder metallurgy
• ISSN: 1757-8981; 1757-899X
• DOI: 10.1088/1757-899X/870/1/012150

Powder Metallurgy is the very advanced method of manufacturing the varied range of engineering composites by mixing \ blending the powders. The compacting mixture of powders to the necessary shape into a die, which is manufactured for this process, is carried out by a hydraulic press. The force applied for pressing is 30 tons. The sintering process is achieved with a controlled atmosphere. The best value for sintering temperature is 600 °C for one hour. Composite specimens prepared from Al-alloy reinforced with different weight percent (2, 4, 6 and 8%) of Al2O3. The testing of the samples includes compression, flexural stress, hardness, Energy Dispersive Spectroscopy (EDS), X-Ray diffraction (XRD) and corrosion resistance. The best mechanical and physical properties of the prepared samples happened at 6 wt% of Alumina. The improvement of the corrosion resistance value is about 35.67 wt%.