Local Effects in EHL Contacts with Oil-Impregnated Sintered Materials

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F18%3APU131484" target="_blank" >RIV/00216305:26210/18:PU131484 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2075-4442/7/1/1" target="_blank" >https://www.mdpi.com/2075-4442/7/1/1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/lubricants7010001" target="_blank" >10.3390/lubricants7010001</a>

Result language

angličtina

Original language name

Local Effects in EHL Contacts with Oil-Impregnated Sintered Materials

Original language description

Oil-impregnated open-pored sintered materials can be used to provide the intrinsic self-lubrication of tribological contacts. Although its general functionality was recently confirmed for highly-loaded contacts, detailed analyses on the local effects of surface porosity in tribological contacts are required in order to understand and improve its operating behavior. In this context, this study investigates the influence of different surface finishes at a twin-disk test rig, and the local effects of surface porosity in elastohydrodynamically lubricated (EHL) contacts at an optical tribometer, based on thin film colorimetric interferometry. The results show the detrimental influence of high surface porosity on the operating behavior. Local observations of the lubricant film in EHL contacts indicate the presence of "open" pores, resulting in local film breakdown, and "closed" pores, transporting the additional lubricant into the pressurized zone. An appropriate surface finish technique to manufacture a low permeable layer with an adequate mechanical strength is demanded.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20302 - Applied mechanics

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Lubricants

ISSN

2075-4442

e-ISSN

—

Volume of the periodical

7

Issue of the periodical within the volume

1

Country of publishing house

CH - SWITZERLAND

Number of pages

21

Pages from-to

1-21

UT code for WoS article

000457217700002

EID of the result in the Scopus database

2-s2.0-85059659603