Scale-dependent wetting behavior of bioinspired lubricants on electrical discharge machined Ti6Al4V surfaces

Katarzyna Peta; Tomasz Bartkowiak; Marek Rybicki; Przemyslaw Galek; Michał Mendak; Michał Wieczorowski; Christopher A. Brown

doi:10.1016/j.triboint.2024.109562

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Title

Scale-dependent wetting behavior of bioinspired lubricants on electrical discharge machined Ti6Al4V surfaces

Authors

Katarzyna Peta (WIM) ^{[ 1 ][ 2.9 ][ P ]}
Tomasz Bartkowiak (WIM) ^{[ 1 ][ 2.9 ][ P ]}
Marek Rybicki (WIM) ^{[ 1 ][ P ]}
Przemyslaw Galek (WTCH) ^{[ 2 ][ 7.6 ][ P ]}
Michał Mendak
Michał Wieczorowski (WIM) ^{[ 1 ][ 2.9 ][ P ]}
Christopher A. Brown

^{[ 1 ]} Instytut Technologii Mechanicznej, Wydział Inżynierii Mechanicznej, Politechnika Poznańska | ^{[ 2 ]} Instytut Chemii i Elektrochemii Technicznej, Wydział Technologii Chemicznej, Politechnika Poznańska | ^{[ P ]} employee

Scientific discipline (Law 2.0)

[2.9] Mechanical engineering
[7.6] Chemical sciences

Year of publication

2024

Published in

Tribology International

Journal year: 2024 | Journal volume: vol. 194

Article type

scientific article

Publication language

english

Keywords

EN

wetting
contact angle
lubrication
multiscale analysis

Abstract

EN The relationships between the geometric features of material surfaces and topographically related phenomena, such as wetting, change with the scale of observation. In these studies, multiscale analyzes allow characterizing the relationships between electrical discharge machining parameters, complex surface topographic structures and contact angles. Importantly, it was possible to indicate the best scales for observing the phenomena of lubricant flow on electro-discharged surfaces and to identify key geometric parameters of the surface affecting the contact angle. This paper proposes scale-dependent contact angle analyzes of electro-discharge machined Ti6Al4V alloy for biomedical implant applications. Liquids imitating synovial fluid in joints were used as lubricants. The research focuses on comparing the impact of discharge energy on surface microtexture, chemical composition, contact angle and surface free energy. The analysis of the lubrication behavior on micro-textured surfaces in contact mechanics co-determines the tribological properties. The research results confirm the effectiveness of modeling the specific wettability of implant surfaces with bioinspired lubricants.

Date of online publication

19.03.2024

DOI

10.1016/j.triboint.2024.109562

URL

https://www.sciencedirect.com/science/article/pii/S0301679X24003141

Comments

Article Number: 109562

License type

CC BY (attribution alone)

Open Access Mode

czasopismo hybrydowe