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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

The use of Powder Metallurgy for promoting friction reduction under sliding-rolling lubricated conditions

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Author(s):
Boidi, G. [1, 2, 3] ; Profito, F. J. [1] ; Kadiric, A. [3] ; Machado, I. F. [1] ; Dini, D. [3]
Total Authors: 5
Affiliation:
[1] Univ Sao Paulo, Escola Politecn, Sao Paulo - Brazil
[2] AC2T Res GmbH, Viktor Kaplan Str 2-C, A-2700 Wiener Neustadt - Austria
[3] Imperial Coll London, Dept Mech Engn, Tribol Grp, South Kensington Campus, Exhibit Rd, London SW7 2AZ - England
Total Affiliations: 3
Document type: Journal article
Source: TRIBOLOGY INTERNATIONAL; v. 157, MAY 2021.
Web of Science Citations: 1
Abstract

This work exploits the use of different sintering manufacturing techniques for obtaining superior performances in lubricated point contacts. Disc and ball specimens were manufactures varying porosity and pore characteristics. The effect of surface pores in sintered materials was evaluated based on the frictional behaviour under different sliding-rolling conditions and lubrication regimes. Furthermore, lubricant film thicknesses were measured using interferometric technique. Test results showed that the decrease of porosity generally improves tribological performance. Low porosity surfaces can promote friction reduction compared to non-porous reference materials in specific configurations and operating with similar specific lubricant thickness values. This work contributes to an improved understanding of how randomly distributed micro-irregularities could change lubrication conditions, potentially increasing the efficiency of lubricated mechanical systems. (AU)

FAPESP's process: 17/21151-8 - Tribological effect of micro surface irregularities (surface porosity and texture) on lubricated sliding/rolling tests
Grantee:Guido Boidi
Support Opportunities: Scholarships abroad - Research Internship - Doctorate (Direct)
FAPESP's process: 16/25067-9 - Study of the micro surface irregularities (texture and porosity) effect on the tribological behavior of a steel sintered by SPS
Grantee:Guido Boidi
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)