Study of tribological characteristics of AA6061-ZrO2 composites under wear conditions

Aerospace, automobile, defense, and medical disciplines are just some of the technical and industrial applications that benefit from cryogenic technology’s superior cooling and lubricating action. For cryo-techniques, metal matrix composites (MMCs) are employed instead of the more traditional materi...

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Bibliographic Details
Main Authors: Prasath, K. Arun, Muppudathi, S., Manikandan, V., Rakesh, N. Lenin, Khan, P. Mohammed Sharif, Vijayakumar, M.
Format: Conference Proceeding
Language:English
Subjects:
Aluminum base alloys
Coefficient of friction
Contact pressure
Cryogenic cooling
Cryogenic equipment
Cryogenic fluids
Cryogenic temperature
Friction reduction
Frictional wear
Hydraulic pressure
Industrial applications
Liquid nitrogen
Metal matrix composites
Nitrogen
Sliding contact
Sliding friction
Strength to weight ratio
Tribology
Wear rate
Wear tests
Weight reduction
Zirconium dioxide
Zirconium oxides
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Summary:Aerospace, automobile, defense, and medical disciplines are just some of the technical and industrial applications that benefit from cryogenic technology’s superior cooling and lubricating action. For cryo-techniques, metal matrix composites (MMCs) are employed instead of the more traditional materials owing to their more strength-to-weight proportion. Cryogenic temperature technology has been used in many applications, but its impact on aluminum-reinforced Zirconium Oxide particle (AA6061-ZrO2) matrix metal composite (MMC) has not been well investigated. Sliding wear tests are performed in a cryogenic environment to ascertain the AA6061-ZrO2 composite’s tribological behavior. To create a unique cryogenic-tribo combination, a cryogenic system was coupled with a pin-on-disc arrangement. The nozzle configuration of the cryogenic-tribo system allows for precise regulation of the flow rate and pressure of the cryogenic fluid (liquid nitrogen: LN2). Research on wear has been conducted in liquid nitrogen (LN2), Dry Environment (DE) and cryogenic chilled air (CCA). This study demonstrates that the percentage of weight lost by a composite specimen rise with load and distance but declines with sliding speed. The presence of liquid nitrogen (LN2) in sliding contact reduces friction and wear significantly equated to other conditions, as revealed by further observations. Liquid nitrogen may improve performance because the hydraulic pressure of surrounded Liquid nitrogen in the sliding contact eradicates some of the typical load, hence reducing the apparent friction coefficient and the wear rate.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0182815