Tribological behaviour of an electrochemical jet machined textured Al-Si automotive cylinder liner material
This paper investigates the use of Electrochemical Jet Machining to surface texture a hyper-eutectic Al-Si cylinder liner material. Samples were lapped to a 6μm finish followed by immersion in 1mol NaOH to expose the primary silicon colonies above the aluminium surface. Texturing was carried out usi...
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| Format: | Article |
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Elsevier
2017
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| Online Access: | https://eprints.nottingham.ac.uk/40140/ |
| _version_ | 1848795993253871616 |
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| author | Walker, J.C. Kamps, T.J. Lam, J.W. Mitchell-Smith, Jonathon Clare, Adam T. |
| author_facet | Walker, J.C. Kamps, T.J. Lam, J.W. Mitchell-Smith, Jonathon Clare, Adam T. |
| author_sort | Walker, J.C. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | This paper investigates the use of Electrochemical Jet Machining to surface texture a hyper-eutectic Al-Si cylinder liner material. Samples were lapped to a 6μm finish followed by immersion in 1mol NaOH to expose the primary silicon colonies above the aluminium surface. Texturing was carried out using a NC system comprising of a fine gauge nozzle (cathode) jetting a solution of 2.3 mol NaCl on the surface (anode) whilst applying a current density of 220A/cm2. An array of hemispherical dimples at 1.5mm spacing was created, with an average diameter of 420μm and depth of 40μm, corresponding to an ε ratio of 0.095. Lubricated reciprocating sliding was carried out at stroke length of 25mm in a bath of PAO (4cSt) against a 52100 cylinder of 6mm diameter and 16mm length.
Sliding frequencies were incremented at 1Hz intervals between 1-15Hz at 50N load increments from 50-200N. Stribeck curves indicated a reduction of the friction coefficient due to texturing of up to 0.05 in the mixed lubrication regime, representing a decrease of 38.5%. Optical profilometry and SEM indicated that abrasion and formation of a surface tribo-layer was mitigated in regions of the Al-Si surface where textured features were present parallel to the sliding direction. |
| first_indexed | 2025-11-14T19:40:54Z |
| format | Article |
| id | nottingham-40140 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:40:54Z |
| publishDate | 2017 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-401402020-05-04T18:29:53Z https://eprints.nottingham.ac.uk/40140/ Tribological behaviour of an electrochemical jet machined textured Al-Si automotive cylinder liner material Walker, J.C. Kamps, T.J. Lam, J.W. Mitchell-Smith, Jonathon Clare, Adam T. This paper investigates the use of Electrochemical Jet Machining to surface texture a hyper-eutectic Al-Si cylinder liner material. Samples were lapped to a 6μm finish followed by immersion in 1mol NaOH to expose the primary silicon colonies above the aluminium surface. Texturing was carried out using a NC system comprising of a fine gauge nozzle (cathode) jetting a solution of 2.3 mol NaCl on the surface (anode) whilst applying a current density of 220A/cm2. An array of hemispherical dimples at 1.5mm spacing was created, with an average diameter of 420μm and depth of 40μm, corresponding to an ε ratio of 0.095. Lubricated reciprocating sliding was carried out at stroke length of 25mm in a bath of PAO (4cSt) against a 52100 cylinder of 6mm diameter and 16mm length. Sliding frequencies were incremented at 1Hz intervals between 1-15Hz at 50N load increments from 50-200N. Stribeck curves indicated a reduction of the friction coefficient due to texturing of up to 0.05 in the mixed lubrication regime, representing a decrease of 38.5%. Optical profilometry and SEM indicated that abrasion and formation of a surface tribo-layer was mitigated in regions of the Al-Si surface where textured features were present parallel to the sliding direction. Elsevier 2017-01-23 Article PeerReviewed Walker, J.C., Kamps, T.J., Lam, J.W., Mitchell-Smith, Jonathon and Clare, Adam T. (2017) Tribological behaviour of an electrochemical jet machined textured Al-Si automotive cylinder liner material. Wear . ISSN 1873-2577 (In Press) Surface Texturing; Automotive; Al-Si; Friction; Wear; Electrochemical Jet Machining |
| spellingShingle | Surface Texturing; Automotive; Al-Si; Friction; Wear; Electrochemical Jet Machining Walker, J.C. Kamps, T.J. Lam, J.W. Mitchell-Smith, Jonathon Clare, Adam T. Tribological behaviour of an electrochemical jet machined textured Al-Si automotive cylinder liner material |
| title | Tribological behaviour of an electrochemical jet machined
textured Al-Si automotive cylinder liner material |
| title_full | Tribological behaviour of an electrochemical jet machined
textured Al-Si automotive cylinder liner material |
| title_fullStr | Tribological behaviour of an electrochemical jet machined
textured Al-Si automotive cylinder liner material |
| title_full_unstemmed | Tribological behaviour of an electrochemical jet machined
textured Al-Si automotive cylinder liner material |
| title_short | Tribological behaviour of an electrochemical jet machined
textured Al-Si automotive cylinder liner material |
| title_sort | tribological behaviour of an electrochemical jet machined
textured al-si automotive cylinder liner material |
| topic | Surface Texturing; Automotive; Al-Si; Friction; Wear; Electrochemical Jet Machining |
| url | https://eprints.nottingham.ac.uk/40140/ |