Corrosion protection of steel with multilayer coatings: Improving the sealing properties of physical vapor deposition CrN coatings with Al2O3/ TiO2 atomic layer deposition nanolaminates

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Corrosion protection of steel with multilayer coatings: Improving the sealing properties of physical vapor deposition CrN coatings with Al2O3/ TiO2 atomic layer deposition nanolaminates. / Leppäniemi, Jarmo; Sippola, Perttu; Broas, Mikael; Aromaa, Jari; Lipsanen, Harri; Koskinen, Jari.

In: Thin Solid Films, Vol. 627, 04.2017, p. 59-68.

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@article{09f43de8dc604392b40477d8877fb6a3,
title = "Corrosion protection of steel with multilayer coatings: Improving the sealing properties of physical vapor deposition CrN coatings with Al2O3/ TiO2 atomic layer deposition nanolaminates",
abstract = "Atomic Layer Deposition (ALD) of Al2O3/TiO2 nanolaminatewas applied to improve the sealing properties of CrN coating deposited with Physical Vapor Deposition (PVD) on high speed steel (HSS). The corrosion protection propertieswere explored with Linear Sweep Voltammetry and visual estimation. Nearly two orders of magnitude decrease in corrosion current density was obtained by applying plasma pre-treatment prior to ALD coating. Sealing of CrN pinholes was shown with Focused Ion Beam/Scanning Electron Microscope technique. The effect of the ALD deposition parameters to adhesion of the ALD coatings was investigated with Rockwell indentation and microscope analysis. Thickness and refractive index of the ALD coatings were measured with ellipsometry, and density and roughness of the ALD coatingswere investigatedwith X-Ray Reflectivity measurements. Neutral Salt Spray testing was used to investigate the corrosion resistance of PVD/ALD nanolaminates on HSS dental curettes.",
keywords = "CORROSION, defects, Electrochemical properties, Multilayer, Physical vapor deposition, Atomic layer Deposition, Thin films, STEEL",
author = "Jarmo Lepp{\"a}niemi and Perttu Sippola and Mikael Broas and Jari Aromaa and Harri Lipsanen and Jari Koskinen",
year = "2017",
month = "4",
doi = "10.1016/j.tsf.2017.02.050",
language = "English",
volume = "627",
pages = "59--68",
journal = "Thin Solid Films",
issn = "0040-6090",
publisher = "Elsevier Science",

}

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TY - JOUR

T1 - Corrosion protection of steel with multilayer coatings: Improving the sealing properties of physical vapor deposition CrN coatings with Al2O3/ TiO2 atomic layer deposition nanolaminates

AU - Leppäniemi, Jarmo

AU - Sippola, Perttu

AU - Broas, Mikael

AU - Aromaa, Jari

AU - Lipsanen, Harri

AU - Koskinen, Jari

PY - 2017/4

Y1 - 2017/4

N2 - Atomic Layer Deposition (ALD) of Al2O3/TiO2 nanolaminatewas applied to improve the sealing properties of CrN coating deposited with Physical Vapor Deposition (PVD) on high speed steel (HSS). The corrosion protection propertieswere explored with Linear Sweep Voltammetry and visual estimation. Nearly two orders of magnitude decrease in corrosion current density was obtained by applying plasma pre-treatment prior to ALD coating. Sealing of CrN pinholes was shown with Focused Ion Beam/Scanning Electron Microscope technique. The effect of the ALD deposition parameters to adhesion of the ALD coatings was investigated with Rockwell indentation and microscope analysis. Thickness and refractive index of the ALD coatings were measured with ellipsometry, and density and roughness of the ALD coatingswere investigatedwith X-Ray Reflectivity measurements. Neutral Salt Spray testing was used to investigate the corrosion resistance of PVD/ALD nanolaminates on HSS dental curettes.

AB - Atomic Layer Deposition (ALD) of Al2O3/TiO2 nanolaminatewas applied to improve the sealing properties of CrN coating deposited with Physical Vapor Deposition (PVD) on high speed steel (HSS). The corrosion protection propertieswere explored with Linear Sweep Voltammetry and visual estimation. Nearly two orders of magnitude decrease in corrosion current density was obtained by applying plasma pre-treatment prior to ALD coating. Sealing of CrN pinholes was shown with Focused Ion Beam/Scanning Electron Microscope technique. The effect of the ALD deposition parameters to adhesion of the ALD coatings was investigated with Rockwell indentation and microscope analysis. Thickness and refractive index of the ALD coatings were measured with ellipsometry, and density and roughness of the ALD coatingswere investigatedwith X-Ray Reflectivity measurements. Neutral Salt Spray testing was used to investigate the corrosion resistance of PVD/ALD nanolaminates on HSS dental curettes.

KW - CORROSION

KW - defects

KW - Electrochemical properties

KW - Multilayer

KW - Physical vapor deposition

KW - Atomic layer Deposition

KW - Thin films

KW - STEEL

U2 - 10.1016/j.tsf.2017.02.050

DO - 10.1016/j.tsf.2017.02.050

M3 - Article

VL - 627

SP - 59

EP - 68

JO - Thin Solid Films

JF - Thin Solid Films

SN - 0040-6090

ER -

ID: 11232481