Electrochemical impedance spectroscopy of HVOF-sprayed NiTi intermetallic coatings deposited on AISI 1045 steel

Verdian, M. M.; Raeissi, K.; Salehi, Mehdi

doi:10.1016/j.jallcom.2010.07.132

Cited by 47 publications

(15 citation statements)

References 24 publications

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“…Similar Al-and O-rich areas were observed in the C2 and C3 coatings. Similar structures with oxide phases have also been observed in others studies [16,17]. Fig.…”

Section: Resultssupporting

confidence: 89%

The microstructural characteristics and mechanical properties of Ni–Al/h-BN coatings deposited using plasma spraying

Hsiao

Huang

et al. 2011

Journal of Alloys and Compounds

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“…Similar Al-and O-rich areas were observed in the C2 and C3 coatings. Similar structures with oxide phases have also been observed in others studies [16,17]. Fig.…”

Section: Resultssupporting

confidence: 89%

The microstructural characteristics and mechanical properties of Ni–Al/h-BN coatings deposited using plasma spraying

Hsiao

Huang

et al. 2011

Journal of Alloys and Compounds

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“…[11][12][13][14][15] A common drawback for many sealing techniques is defects extending through the whole coating. The sol-gel and slurry coatings suffer from cracks induced by curing treatments at high temperatures.…”

mentioning

confidence: 99%

Corrosion Protection of Steel with Oxide Nanolaminates Grown by Atomic Layer Deposition

Härkönen

Díaz

Światowska

et al. 2011

J. Electrochem. Soc.

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Atomic layer deposited (ALD) aluminum and tantalum oxide (Al 2 O 3 and Ta 2 O 5 ) and their nanolaminates were applied as corrosion protection coatings on AISI 52100 steel. The aim was to combine the good sealing properties of Al 2 O 3 with the chemical stability of Ta 2 O 5 and to optimize the coating architecture in order to obtain the best possible long-term durability. Coating composition and morphology were studied with time-of-flight elastic recoil detection analysis (ToF-ERDA), time-of-flight secondary ion mass spectrometry (ToF-SIMS) and field emission scanning electron microscopy (FESEM) and energy dispersive x-ray spectrometry (EDS). Electrochemical properties were studied with voltammetry and electrochemical impedance spectroscopy (EIS), and corrosion durability with neutral salt spray (NSS) testing. The coatings were observed to be conformal and uniform over rough surfaces, and contained some carbon and hydrogen as impurities. The electrochemical results showed that the Al 2 O 3 coating had superior sealing properties compared to the Ta 2 O 5 coating, and nanolaminates had properties in between those of Al 2 O 3 and Ta 2 O 5 . However, in the NSS test the laminate-coated samples survived the best demonstrating long-term durability. Analysis of the laminate structure showed that for 40 and 80 nm laminates the best protection was achieved with 10 and 20 nm layers, respectively.

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“…The shifting of the phase angle at the lower frequency is attributed to the formation of double layer capacitance and the reduction in the anodic surface area of the coating [43][44][45]. This phenomenon indicates that the surface was covered with protective and thick passive layers on the coating surface.…”

Section: Electrochemical Impedance Spectroscopy (Eis) Evaluation Of Cmentioning

confidence: 99%

Corrosion Resistance Properties of Aluminum Coating Applied by Arc Thermal Metal Spray in SAE J2334 Solution with Exposure Periods

Lee

Singh

Ismail

et al. 2016

Metals

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Arc thermal metal spray coating provides excellent corrosion, erosion and wear resistance to steel substrates. This paper incorporates some results of aluminum coating applied by this method on plain carbon steel. Thereafter, coated panels were exposed to an environment known to form stable corrosion products with aluminum. The coated panels were immersed in Society of Automotive Engineers (SAE) J2334 for different periods of time. This solution consists of an aqueous solution of NaCl, CaCl 2 and NaHCO 3 . Various electrochemical techniques, i.e., corrosion potential-time, electrochemical impedance spectroscopy (EIS) and the potentiodynamic were used to determine the performance of stimulants in improving the properties of the coating. EIS studies revealed the kinetics and mechanism of corrosion and potentiodynamic attributed the formation of a passive film, which stifles the penetration of aggressive ions towards the substrate. The corrosion products that formed on the coating surface, identified using Raman spectroscopy, were Dawsonite (NaAlCO 3 (OH) 2 ) and Al(OH) 3 . These compounds of aluminum are very sparingly soluble in aqueous solution and protect the substrate from pitting and uniform corrosion. The morphology and composition of corrosion products determined by scanning electron microscopy and energy dispersive X-ray analyses indicated that the environment plays a decisive role in improving the corrosion resistance of aluminum coating.

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Electrochemical impedance spectroscopy of HVOF-sprayed NiTi intermetallic coatings deposited on AISI 1045 steel

Cited by 47 publications

References 24 publications

The microstructural characteristics and mechanical properties of Ni–Al/h-BN coatings deposited using plasma spraying

The microstructural characteristics and mechanical properties of Ni–Al/h-BN coatings deposited using plasma spraying

Corrosion Protection of Steel with Oxide Nanolaminates Grown by Atomic Layer Deposition

Corrosion Resistance Properties of Aluminum Coating Applied by Arc Thermal Metal Spray in SAE J2334 Solution with Exposure Periods

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