Influence of Different Binders and Severe Environmental Conditions on the Tribological and Electrochemical Behaviour of WC-Based Composites

• Tipo: Artigo em Revista Científica Internacional
• Data: 2022

Autores

Pereira, P (Autor) Outra; Vilhena, L (Autor) Outra; Sacramento, J (Autor) Outra; Senos, A (Autor) Outra; Luís Filipe Malheiros (Autor) FEUP; Ramalho, A (Autor) Outra

Revista

Título: Lubricants

Vol. 10

Página Final: 145

Editora: MDPI

Indexação

ISI Web of Knowledge - 0 Citações

Scopus

Outras Informações

ID Authenticus: P-00X-0DW

DOI: 10.3390/lubricants10070145

Abstract (EN): Cemented carbides are highly resistant to abrasion, erosion and sliding wear and are frequently used in drilling and cutting tool operations. In the present investigation, different submicrometric (0.8 mu m) WC (tungsten carbide)-based composites were developed, containing various binders of Co, Ni, NiCr, NiMo, and NiCrMo. The main objective of the work was simultaneous tribological and electrochemical characterization to investigate the mechanisms of surface degradation when subjected to mechanical wear and how they interconnect with chemical or electrochemical processes and each other. By comparison with previous tribological tests, under dry sliding and the same contact conditions of load and frequency, it can be concluded that a synergistic effect was not observed and that the solution works mainly as lubrication, resulting in increased combined wear-corrosion resistance.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 18