Diamond films were grown by Hot Filament Chemical Vapour Deposition (HFCVD) on differently pretreated ISO-grade K10 cemented carbide (WC-5.8 wt.%Co) cutting inserts. Etching with diluted HNO3 and surface roughening by Murakami's reagent were used as substrate pretreatments. The adhesion of the films was evaluated by indentation tests. In order to obtain a reliable estimation of the adhesion by the slope of the crack radius-indentation load curves, a careful SEM measurement of the crack lengths was performed. Bare and diamond-coated cutting inserts were used for turning tests of Al2O3-reinforced aluminum alloy. The adhesion levels obtained from the indentation curves correlated well the lifetime of diamond-coated cutting inserts used in turning tests performed on metal matrix composite material under severe cutting conditions.

Polini, R., D'Antonio, P., Lo Casto, S., Ruisi, V.F., & Traversa, E. (2000). Cutting performance and indentation behaviour of diamond films on co-cemented tungsten carbide. SURFACE & COATINGS TECHNOLOGY, 123(1), 78-83 [10.1016/S0257-8972(99)00471-5].

Cutting performance and indentation behaviour of diamond films on co-cemented tungsten carbide

POLINI, RICCARDO;TRAVERSA, ENRICO
2000

Abstract

Diamond films were grown by Hot Filament Chemical Vapour Deposition (HFCVD) on differently pretreated ISO-grade K10 cemented carbide (WC-5.8 wt.%Co) cutting inserts. Etching with diluted HNO3 and surface roughening by Murakami's reagent were used as substrate pretreatments. The adhesion of the films was evaluated by indentation tests. In order to obtain a reliable estimation of the adhesion by the slope of the crack radius-indentation load curves, a careful SEM measurement of the crack lengths was performed. Bare and diamond-coated cutting inserts were used for turning tests of Al2O3-reinforced aluminum alloy. The adhesion levels obtained from the indentation curves correlated well the lifetime of diamond-coated cutting inserts used in turning tests performed on metal matrix composite material under severe cutting conditions.
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore CHIM/03 - Chimica Generale e Inorganica
Settore ING-IND/22 - Scienza e Tecnologia dei Materiali
English
Con Impact Factor ISI
Cutting performance; Tungsten carbide; Diamond films; CVD; Indentation behaviour
Polini, R., D'Antonio, P., Lo Casto, S., Ruisi, V.F., & Traversa, E. (2000). Cutting performance and indentation behaviour of diamond films on co-cemented tungsten carbide. SURFACE & COATINGS TECHNOLOGY, 123(1), 78-83 [10.1016/S0257-8972(99)00471-5].
Polini, R; D'Antonio, P; Lo Casto, S; Ruisi, V; Traversa, E
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/44529
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