Corrosion properties of amorphous Mo-Si-N and nanolayered Mo-Si-Nn/SiC coatings

Pauli Torri; Amar Mahiout; Jari Koskinen; Juha-Pekka Hirvonen; L-S. Johansson

doi:10.1016/S1359-6462(99)00407-8

Corrosion properties of amorphous Mo-Si-N and nanolayered Mo-Si-Nn/SiC coatings

Pauli Torri, Amar Mahiout, Jari Koskinen, Juha-Pekka Hirvonen, L-S. Johansson

VTT Technical Research Centre of Finland

Research output: Contribution to journal › Article › Scientific › peer-review

12 Citations (Scopus)

Abstract

Corrosion properties of sputter deposited MoSi₂, SiC, Mo-Si-N (MoSi_2.2N_2.5) and nanolayered Mo-Si-N/SiC coatings on Fe37 low carbon steel have been studied using electrochemical polarization measurements in 1 N H₂SO₄ solution. A decrease in both critical current density for passivation and minimum current in passive state was observed in annealed nanolayered Mo-Si-N/SiC coating compared to each of its constituents alone as single layer coating. On contrary to MoSi₂ coating, only slight increase in critical current density was observed in Mo-Si-N coated sample after annealing. Molybdenum disilicide source material has good thermal and electrical conductivity, which allows effective dc-magnetron sputter deposition. Therefore this is a relatively simple method to produce amorphous coatings which have a high crystallization temperature and promising properties for corrosion applications

Original language	English
Pages (from-to)	609-613
Journal	Scripta Materialia
Volume	42
Issue number	6
DOIs	https://doi.org/10.1016/S1359-6462(99)00407-8
Publication status	Published - 2000
MoE publication type	A1 Journal article-refereed

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title = "Corrosion properties of amorphous Mo-Si-N and nanolayered Mo-Si-Nn/SiC coatings",

abstract = "Corrosion properties of sputter deposited MoSi2, SiC, Mo-Si-N (MoSi2.2N2.5) and nanolayered Mo-Si-N/SiC coatings on Fe37 low carbon steel have been studied using electrochemical polarization measurements in 1 N H2SO4 solution. A decrease in both critical current density for passivation and minimum current in passive state was observed in annealed nanolayered Mo-Si-N/SiC coating compared to each of its constituents alone as single layer coating. On contrary to MoSi2 coating, only slight increase in critical current density was observed in Mo-Si-N coated sample after annealing. Molybdenum disilicide source material has good thermal and electrical conductivity, which allows effective dc-magnetron sputter deposition. Therefore this is a relatively simple method to produce amorphous coatings which have a high crystallization temperature and promising properties for corrosion applications ",

author = "Pauli Torri and Amar Mahiout and Jari Koskinen and Juha-Pekka Hirvonen and L-S. Johansson",

year = "2000",

doi = "10.1016/S1359-6462(99)00407-8",

language = "English",

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pages = "609--613",

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TY - JOUR

T1 - Corrosion properties of amorphous Mo-Si-N and nanolayered Mo-Si-Nn/SiC coatings

AU - Torri, Pauli

AU - Mahiout, Amar

AU - Koskinen, Jari

AU - Hirvonen, Juha-Pekka

AU - Johansson, L-S.

PY - 2000

Y1 - 2000

N2 - Corrosion properties of sputter deposited MoSi2, SiC, Mo-Si-N (MoSi2.2N2.5) and nanolayered Mo-Si-N/SiC coatings on Fe37 low carbon steel have been studied using electrochemical polarization measurements in 1 N H2SO4 solution. A decrease in both critical current density for passivation and minimum current in passive state was observed in annealed nanolayered Mo-Si-N/SiC coating compared to each of its constituents alone as single layer coating. On contrary to MoSi2 coating, only slight increase in critical current density was observed in Mo-Si-N coated sample after annealing. Molybdenum disilicide source material has good thermal and electrical conductivity, which allows effective dc-magnetron sputter deposition. Therefore this is a relatively simple method to produce amorphous coatings which have a high crystallization temperature and promising properties for corrosion applications

AB - Corrosion properties of sputter deposited MoSi2, SiC, Mo-Si-N (MoSi2.2N2.5) and nanolayered Mo-Si-N/SiC coatings on Fe37 low carbon steel have been studied using electrochemical polarization measurements in 1 N H2SO4 solution. A decrease in both critical current density for passivation and minimum current in passive state was observed in annealed nanolayered Mo-Si-N/SiC coating compared to each of its constituents alone as single layer coating. On contrary to MoSi2 coating, only slight increase in critical current density was observed in Mo-Si-N coated sample after annealing. Molybdenum disilicide source material has good thermal and electrical conductivity, which allows effective dc-magnetron sputter deposition. Therefore this is a relatively simple method to produce amorphous coatings which have a high crystallization temperature and promising properties for corrosion applications

U2 - 10.1016/S1359-6462(99)00407-8

DO - 10.1016/S1359-6462(99)00407-8

M3 - Article

SN - 1359-6462

VL - 42

SP - 609

EP - 613

JO - Scripta Materialia

JF - Scripta Materialia

IS - 6

ER -

Corrosion properties of amorphous Mo-Si-N and nanolayered Mo-Si-Nn/SiC coatings

Abstract

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