Effect of Particle Size on Mechanical Properties of Al-RMp Metal Matrix Composites. (2017)

• Record Type: Journal Article
• Authors: Rao, K.V. Sreenivas; Anil, K.C.; Akash, ; Girisha, K.G.
• Is Part Of: Materials today. Volume 4:Number 10(2017)
• Page Start: 11154
• Page End: 11157
• Publication Date: 2017
• Subjects: Stirr cating -- Redmud -- Bauxite -- Bayer's; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2017.08.080
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Particle reinforced aluminum matrix composites (AMC) have invoked a potent interest in recent times for applications in aerospace industries. Al- MMCs have improved mechanical, tribological, strength to weight ratio when compare to monolithic metals and alloys. Red mud (RMp), a residue of a Bayer process was selected as reinforcement with three different grain sizes of 90, 120, 180 microns and wrought aluminum alloy 8011 as a matrix material. Normal stir casting route is adopted to cast the composites by varying the wt.% of the RMp from to 4% to 20% in increment of 4%. Prepared composites are then tested for mechanical properties as per the ASTM standards. From the obtained results it is observed that 24.45% increase in tensile strength in Al-14wt% RMp90 composition and good hardness and compressive strength in Al-20wt% RMp180 composition is obtained.