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Tribological Characterization of the ASTM F138 Austenitic Stainless-Steel Treated with Nanosecond Optical Fiber Ytterbium Laser for Biomedical Applications

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Tipo de produção

Artigo de evento

Data de publicação

2022-01-05

Texto completo (DOI)

Periódico

IFMBE Proceedings

Editor

Citações na Scopus

1

Autores

DE MATOS MACEDO, M.
BERNARDES, G. V. R.
LUNA-DOMINGUEZ, J. H.
VERMA. V.
Ronaldo Câmara Cozza

Orientadores

Resumo

© 2022, Springer Nature Switzerland AG.This study investigated the tribological behavior of the ASTM F138 austenitic stainless-steel – which is generally used in biomedical applications – treated with laser. Metallic biomaterial surfaces were treated under different nanosecond optical fiber ytterbium laser pulse frequencies, with the purpose to increase their surface hardness. Further, ball-cratering wear tests were conducted to analyze their tribological behavior on the basis of their wear volume and coefficient of friction. The obtained results showed that the nanosecond optical fiber ytterbium laser pulse frequency influenced the surface hardness of each specimen and, consequently, on the wear resistance of the ASTM F138 austenitic stainless-steel biomaterial. With an increase of laser pulse frequency, a decrease in the wear volume of the worn biomaterial was observed – which is the main tribological parameter to study the wear resistance of a metallic biomaterial. In contrast, the coefficient of friction values were found to be independent of the laser pulse frequency, surface hardness and the wear volume of the specimen.

Citação

DE MATOS MACEDO, M.; BERNARDES, G. V. R.; LUNA-DOMINGUEZ, J. H.; VERMA. V.; COZZA, R. C. Tribological Characterization of the ASTM F138 Austenitic Stainless-Steel Treated with Nanosecond Optical Fiber Ytterbium Laser for Biomedical Applications. IFMBE Proceedings, v. 83, p. 79-83, 2022.

Palavras-chave

Keywords

Austenitic stainless-steel; Biomaterial; Coefficient of friction; Laser treatment; Wear resistance; Wear volume

Assuntos Scopus

Biomedical applications; Coefficient of frictions; Laser pulse frequency; Laser treatment; Metallic biomaterials; Surface hardness; Tribological behaviour; Tribological characterization; Wear volume; Ytterbium lasers

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