Wear Rate, Tribo-Corrosion, and Plastic Deformation Values of Co-Cr-Mo Alloy in Ringer Lactate Solution

• Tipo: Artigo em Revista Científica Internacional
• Data: 2024

Autores

Silva, RNA (Autor) Outra; Neto, R (Autor) Outra; Vieira, A (Autor) Outra; Leite, P (Autor) Outra; Radi, P (Autor) Outra; da Silveira, CH (Autor) Outra; Santos, MD (Autor) Outra; Filomena Viana (Autor) FEUP; Vieira, L (Autor) Outra

Revista

Título: Materials

Vol. 17

Página Final: 2327

ISSN: 1996-1944

Editora: MDPI

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-010-H3B

DOI: 10.3390/ma17102327

Abstract (EN): This study investigates the tribocorrosion performance of a cast Co-Cr-Mo alloy prepared using casting and electromagnetic stirring (EMS) at specific frequencies. The tribocorrosion behaviour of the alloy was evaluated when exposed to Ringer's lactate solution to optimize the EMS parameters and improve its properties. The research focuses on biomedical implant applications and explores how EMS affects alloy wear and corrosion resistance. As did the friction coefficient and wear volume, the wear rate of samples produced with EMS frequencies of 75 Hz and 150 Hz decreased. These improvements are attributed to the ability of EMS to refine grain size and homogenize the microstructure, thereby increasing the resistance to tribocorrosion. Techniques such as scanning electron microscopy (SEM) and profilometry were used for surface and wear analysis, while mechanical properties were evaluated through instrumented indentation tests. The findings confirm that EMS improves the alloy's durability and tribocorrosion resistance, making it highly suitable for demanding biomedical applications such as joint replacements. This highlights the importance of advanced manufacturing techniques in optimizing biomedical alloys for simulated body conditions.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 20