Please use this identifier to cite or link to this item:
https://scholarbank.nus.edu.sg/handle/10635/58322
DC Field | Value | |
---|---|---|
dc.title | Friction and wear characteristics of Al-Cu/C composites synthesized using partial liquid phase casting process | |
dc.contributor.author | Lim, S.C. | |
dc.contributor.author | Gupta, M. | |
dc.contributor.author | Ng, W.B. | |
dc.date.accessioned | 2014-06-17T05:13:16Z | |
dc.date.available | 2014-06-17T05:13:16Z | |
dc.date.issued | 1997 | |
dc.identifier.citation | Lim, S.C.,Gupta, M.,Ng, W.B. (1997). Friction and wear characteristics of Al-Cu/C composites synthesized using partial liquid phase casting process. Materials and Design 18 (3) : 161-166. ScholarBank@NUS Repository. | |
dc.identifier.issn | 02613069 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/58322 | |
dc.description.abstract | During the sliding of aluminium alloys dispersed with graphite particulates, a layer of graphite is usually present at the sliding interface. This tribo-layer significantly reduces the amount of direct metal-to-metal contact, giving rise to low friction and a low rate of wear, making these composites useful candidate materials for anti-friction applications. Such self-lubricating composites are commonly fabricated via the squeeze casting, slurry casting or powder metallurgy route. These processes are expensive while the less-expensive conventional casting route is limited by the agglomeration of graphite particles in the composites, giving rise to poor mechanical properties. In this work, graphite particulate-reinforced Al-4.5 wt.% Cu composites with two effective graphite contents (Al-4.5 Cu/4.2 wt.% C and Al-4.5 Cu/6.8 wt.% C) were synthesized through an innovative partial liquid phase casting (rheocasting) technique, which is a modification of the conventional casting process. Unlubricated (without the use of conventional liquid lubrication) friction and wear performance of these composites as well as the un-reinforced aluminium alloy was determined using a pin-on-disk tester. The results revealed that the graphite-reinforced composites have a higher wear rate than the un-reinforced matrix alloy while their frictional characteristics are very similar within the range of testing conditions. Combining these with the information gathered from worn-surface examinations and wear-debris analysis, it is suggested that there exists a certain threshold for the amount and size of graphite particulates in these composites to enable them to have improved tribological properties. © 1998 Elsevier Science Ltd. All rights reserved. | |
dc.source | Scopus | |
dc.subject | Anti-friction | |
dc.subject | Composites | |
dc.subject | Graphite | |
dc.subject | Rheocasting | |
dc.subject | Smearing | |
dc.subject | Wear | |
dc.type | Article | |
dc.contributor.department | MECHANICAL & PRODUCTION ENGINEERING | |
dc.description.sourcetitle | Materials and Design | |
dc.description.volume | 18 | |
dc.description.issue | 3 | |
dc.description.page | 161-166 | |
dc.identifier.isiut | NOT_IN_WOS | |
Appears in Collections: | Staff Publications |
Show simple item record
Files in This Item:
There are no files associated with this item.
Google ScholarTM
Check
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.