Please use this identifier to cite or link to this item: http://www.repositorio.ufop.br/handle/123456789/4621
Title: Corrosion, wear and wear–corrosion behavior of graphite-like a-C:H films deposited on bare and nitrided titanium alloy.
Authors: Manhabosco, Taíse Matte
Barboza, Ana Paula Moreira
Batista, Ronaldo Junio Campos
Neves, Bernardo Ruegger Almeida
Muller, Iduvirges Lourdes
Keywords: Diamond-like carbon
Tribology
Corrosion
Scanning probe techniques
Issue Date: 2013
Citation: MANHABOSCO, T. M. et al. Corrosion, wear and wear–corrosion behavior of graphite-like a-C:H films deposited on bare and nitrided titanium alloy. Diamond and Related Materials, v. 31, p. 58-64, 2013. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0925963512002178>. Acesso em: 24 fev. 2015.
Abstract: This work presents a comparative wear, corrosion and wear–corrosion (the last one in a simulated physiological solution) study of graphite-like a-C:H (GLCH) films deposited on bare and nitrided Ti6Al4V alloy. Films, deposited by r.f. PACVD, presented low porosity and promoted high corrosion resistance. The friction coefficient of the films was very lowwith appreciablewear resistance at roomconditions. However, due to the simultaneous action of both load and the corrosive environment in wear–corrosion tests a marked reduction in the coating lifetime was observed. Unexpectedly, films deposited on the nitrided alloy presented a lifetime at least ten times shorter than that of films on bare alloy. We explain such a result in terms of film/substrate interaction. The weak GLCH/nitride alloy interaction facilitates fluid penetration between the film and the substratewhich leads to a fast film delamination. Such an interpretation is supported by force curve measurements, which show that the interaction between GLCH and nitrided alloy is four times weaker than that between GLCH and bare alloy.
URI: http://www.repositorio.ufop.br/handle/123456789/4621
metadata.dc.identifier.doi: https://doi.org/10.1016/j.diamond.2012.11.005
ISSN: 0925-9635
metadata.dc.rights.license: O periódico Diamond and Related Materials concede permissão para depósito do artigo no Repositório Institucional da UFOP. Número da licença: 3566050324673.
Appears in Collections:DEFIS - Artigos publicados em periódicos

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