Sliding wear performance of graphite reinforced AA6061 alloy composites for rotor drum/disk application. (2020)

• Record Type: Journal Article
• Authors: Kumar, Mukesh; Kumar, Ashiwani
• Is Part Of: Materials today. Volume 27:Part 3(2020)
• Page Start: 1972
• Page End: 1976
• Publication Date: 2020
• Subjects: AA6061 alloy -- Sliding wear -- Graphite particulates -- Pin-on-Disk tribo-tester -- Taguchi technique; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2019.09.042
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: This research work reports sliding wear performance of graphite reinforced AA6061 alloy composites for rotor drum/disk application in automobiles. The solid lubricant i.e. graphite-particulates of varying weight percentage (0–10 wt%) was used to reinforce AA6061 alloy, fabricated via high vacuum casting method. The sliding wear was simulated experimentally using Taguchi techniques on Pin-on-Disk tribo-tester, with operating conditions viz. applied load (15–55 N), sliding speed (0.5–2.5 m/s) and sliding distance (200–1000 m). Results show improvement in wear resistance of alloy due to the lubricating effect of graphite. Additionally, 7.5 wt% 6061/Gr alloy composite shows superior wear resistance performance under experimental conditions. Surface morphological studies of worn-out surfaces are carried using scanning electron microscope (SEM), in-order-to understand hidden surface wear mechanisms.