A comparative investigation of the corrosion and tribocorrosion behaviour of nitrocarburized, gas nitrided, fluidized-bed nitrided, and plasma nitrided plastic mould steel

• Tipo: Artigo em Revista Científica Internacional
• Data: 2018

Autores

Boztepe, E (Autor) Outra; Alves, AC (Autor) Outra; Ariza, E (Autor) Outra; Rocha, LA (Autor) Outra; Cansever, N (Autor) Outra; Toptan, F (Autor) Outra

Revista

Título: Surface and Coatings Technology

Vol. 334

Páginas: 116-123

ISSN: 0257-8972

Editora: Elsevier

Indexação

Scopus - 20 Citações

Outras Informações

ID Authenticus: P-00N-8Q2

DOI: 10.1016/j.surfcoat.2017.11.033

Abstract (EN): The present study aims to compare the corrosion and tribocorrosion behaviour of nitrocarburized, gas-nitrided, fluidized-bed nitrided, and plasma-nitrided Impax Supreme (equivalent to AISI P20) pre-hardened plastic mould steel. Corrosion behaviour was investigated by electrochemical impedance spectroscopy and potentiodynamic polarization in 3.5 wt% NaCl solution. Tribocorrosion tests were performed in the same solution under open circuit potential during sliding against 10 mm alumina balls. Results showed that plasma-nitrided samples presented better corrosion behaviour in terms of tendency to corrosion, corrosion rate, and polarization resistance, as compared to the other studied surface treatments. Together with nitrocarburised samples, plasma-nitrided samples also exhibited lower tendency to corrosion under sliding. © 2017 Elsevier B.V.

Idioma: Inglês

Tipo (Avaliação Docente): Científica