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

Research output: Contribution to journalArticleScientificpeer-review

11 Citations (Scopus)

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
Original languageEnglish
Pages (from-to)609-613
JournalScripta Materialia
Volume42
Issue number6
DOIs
Publication statusPublished - 2000
MoE publication typeA1 Journal article-refereed

    Fingerprint

Cite this

Torri, P., Mahiout, A., Koskinen, J., Hirvonen, J-P., & Johansson, L-S. (2000). Corrosion properties of amorphous Mo-Si-N and nanolayered Mo-Si-Nn/SiC coatings. Scripta Materialia, 42(6), 609-613. https://doi.org/10.1016/S1359-6462(99)00407-8