Hard physical vapour deposition (PVD) based coatings for wear and corrosion protection are successfully being applied in many engineering applications. Nitrides of transition metals, such as CrN, TiN, NbN, have been widely studied, however, because most vapour deposited coatings are relatively thin, they usually offer less resistance to the bulk surface deflection. One approach to overcome this aspect is to adopt multilayer coatings with hard/soft (or high/low elastic modulus) layers. Nevertheless, the residual stress induced during the fabrication process is an important factor that needs to be address, which can limit the coating performance. The present paper is concerned with the residual stress present in multilayer CrN/Cr/CrN coatings produced by cathodic arc evaporation. Three different steel substrates were employed (i.e. AISI H13, AISI 1040 and K340). These substrates were subsequently coated in the sequence CrN (1.6μm)/Cr/CrN (1.6 μm), using three different intermediate Cr layer thickness (i.e. 0.5, 1.0, and 1.6 μm). X-ray diffractometry (XRD) was used to evaluate the strain in the direction perpendicular to the coating surface so as to determine the mean residual stress in the coating. © ASM International.

Lamastra, F.r., Leonardi, F., Gusmano, G., Montanari, R., Valente, T., & Casadei, F. (2006). Residual stress measurements on CrN/Cr/CrN multilayer PVD coatings. In Proceedings of the 18th International Conference on Surface Modification Technologies (pp.311-313).

Residual stress measurements on CrN/Cr/CrN multilayer PVD coatings

LAMASTRA, FRANCESCA ROMANA;GUSMANO, GUALTIERO;MONTANARI, ROBERTO;
2006

Abstract

Hard physical vapour deposition (PVD) based coatings for wear and corrosion protection are successfully being applied in many engineering applications. Nitrides of transition metals, such as CrN, TiN, NbN, have been widely studied, however, because most vapour deposited coatings are relatively thin, they usually offer less resistance to the bulk surface deflection. One approach to overcome this aspect is to adopt multilayer coatings with hard/soft (or high/low elastic modulus) layers. Nevertheless, the residual stress induced during the fabrication process is an important factor that needs to be address, which can limit the coating performance. The present paper is concerned with the residual stress present in multilayer CrN/Cr/CrN coatings produced by cathodic arc evaporation. Three different steel substrates were employed (i.e. AISI H13, AISI 1040 and K340). These substrates were subsequently coated in the sequence CrN (1.6μm)/Cr/CrN (1.6 μm), using three different intermediate Cr layer thickness (i.e. 0.5, 1.0, and 1.6 μm). X-ray diffractometry (XRD) was used to evaluate the strain in the direction perpendicular to the coating surface so as to determine the mean residual stress in the coating. © ASM International.
18th International Conference on Surface Modification Technologies
Dijon
15 November 2004 through 17 November 2004
Institute of Materials, Minerals and Mining, London, UK;ASM International
Rilevanza internazionale
Settore ING-IND/22 - Scienza e Tecnologia dei Materiali
English
Coatings; Corrosion protection; Measurement theory; Multilayers; Residual stresses; Transition metals; Wear of materials; Bulk surfaces; Hard physical vapor deposition (PVD); Multilayer PVD coatings; Residual stress measurements; Physical vapor deposition
Intervento a convegno
Lamastra, F.r., Leonardi, F., Gusmano, G., Montanari, R., Valente, T., & Casadei, F. (2006). Residual stress measurements on CrN/Cr/CrN multilayer PVD coatings. In Proceedings of the 18th International Conference on Surface Modification Technologies (pp.311-313).
Lamastra, Fr; Leonardi, F; Gusmano, G; Montanari, R; Valente, T; Casadei, F
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/39285
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