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

被引：8

作者：

Boidi, G. ^{[1
,2
,3
]}

Profito, F. J. ^{[1
]}

Kadiric, A. ^{[2
]}

Machado, I. F. ^{[1
]}

Dini, D. ^{[2
]}

机构：

[1] Univ Sao Paulo, Escola Politecn, Sao Paulo, Brazil

[2] Imperial Coll London, Dept Mech Engn, Tribol Grp, South Kensington Campus,Exhibit Rd, London SW7 2AZ, England

[3] AC2T Res GmbH, Viktor Kaplan Str 2-C, A-2700 Wiener Neustadt, Austria

来源：

TRIBOLOGY INTERNATIONAL | 2021年 / 157卷

基金：

巴西圣保罗研究基金会; 英国工程与自然科学研究理事会;

关键词：

Surface pores; Film thickness; Powder metallurgy; Sliding-rolling; HYDRODYNAMIC LUBRICATION; TEXTURED SURFACES; STEEL; WEAR; BEHAVIOR; PERFORMANCE; TRANSITION; MECHANISMS; PARAMETERS; POROSITY;

D O I：

10.1016/j.triboint.2021.106892

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

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.

引用

页数：10

共 55 条

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