NDLI: Corrosion resistance of PVD hard coatings for tribological engineering applications

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Corrosion resistance of PVD hard coatings for tribological engineering applications

Content Provider	Scilit
Author	Sulaiman, M. H. Sheng, A. O. C. Farahana, R. N. Bienk, K.
Copyright Year	2019
Description	Journal: Iop Conference Series: Materials Science and Engineering The present paper focuses on corrosion resistance of hard coatings deposited on tool steel via Physical Vapour Deposition (PVD) process. Three coating types were investigated – TiN, TiCN and DLC/TiAlN. An immersion corrosion test was performed on the PVD coated tool steels in accordance to ASTM G31 standard. With immersion corrosion test in aggressive media of 3.5% NaCl solution at ambient temperature of 33°C and exposure duration of up to 72 hours, the presence of the PVD coatings on the tool steel surface have improved the corrosion resistance of the tool steel surfaces. The results showed that the DLC/TiAlN coated tool steel has the highest corrosion resistance with corrosion rate of 36.58 mm/year, followed by TiCN and TiN coatings with corrosion rate of 42.10mm/year and 96.86 mm/year, respectively. The uncoated tool steel exhibits the lowest corrosion resistance of 140.61 mm/year. The present study suggests that the DLC coating deposited on SKD11 tool steel substrate has better stability than that of TiCN- and TiN-coated surfaces because the DLC can prevent the corrosion more efficiently than TiCN and TiN.
Related Links	https://iopscience.iop.org/article/10.1088/1757-899X/670/1/012054/pdf
ISSN	17578981
e-ISSN	1757899X
DOI	10.1088/1757-899x/670/1/012054
Journal	Iop Conference Series: Materials Science and Engineering
Issue Number	1
Volume Number	670
Language	English
Publisher	IOP Publishing
Publisher Date	2019-11-01
Access Restriction	Open
Subject Keyword	Journal: Iop Conference Series: Materials Science and Engineering Coatings and Films Corrosion Resistance Coating Deposited
Content Type	Text
Resource Type	Article

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