Oxidation behaviour at 1123 K of AISI 304-Ni/Al-Al&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt;/TiO&lt;sub&gt;2&lt;/sub&gt; multilayer system deposited by flame spray

Habib, K. A.; Saura, J. J.; Ferrer, C.; Damra, M. S.; Cervera, I.

doi:10.3989/revmetalmadrid.1003

Cited by 2 publications

(2 citation statements)

References 27 publications

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“…In previous works (Ref 16,17), the effectiveness of OF thermal spray technique to improve the tribological behavior and oxidation protection of stainless steels at 850°C was proven with a coating system composed of a Ni-Al alloy bond coat and a ceramic topcoat. In a more recent work (Ref 18), it was shown that NiCrAlY thermally sprayed by the OF thermal spray technique provides good oxidation resistance to AISI 304 and AISI 316 stainless steels for temperatures as high as 1000°C for 50 h.…”

Section: Introductionmentioning

confidence: 99%

Performance of NiCrAlY Coatings Deposited by Oxyfuel Thermal Spraying in High Temperature Chlorine Environment

Habib

Damra

Carpio

et al. 2014

J. of Materi Eng and Perform

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A microcrystalline Ni-22Cr-10Al-1Y (wt.%) coating was deposited on AISI 304 stainless steel by the oxyfuel thermal spray technique. The deposited coating was subjected to heat treatment to improve the microstructure characteristics and its corresponding high-temperature properties. The isothermal high-temperature corrosion behavior at 650 and 700°C in synthetic air and in the presence of 1% Cl 2 was investigated using thermogravimetric analysis, x-ray diffraction, and scanning electron microscopy with energy-dispersive x-ray spectroscopy. The results indicated that the deposited NiCrAlY coating possessed acceptable oxidation-corrosion resistance at 650°C owing to the formation of extensive amounts of the protective oxide of Cr 2 O 3 ; NiO and a lesser amount of a Cr 1.12 Ni 2,88 metallic phase are also formed. At 700°C, the coating lost its protective characteristic because of the excessive consumption of thermodynamically stable phases by oxidation-chlorination process. In this case, the steel base and the coating were attacked by chlorine during the exposure time; the mass gain of the NiCrAlY coating was slightly higher and provided only a limited protection up to 11 h; thereafter, breakdown of the layer of oxides occurred and this is attributed to the formation of non-protective oxides mainly b-Fe 2 O 3 and Fe 21.33 O 32 and the depletion of chromium.

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Section: Introductionmentioning

confidence: 99%

Performance of NiCrAlY Coatings Deposited by Oxyfuel Thermal Spraying in High Temperature Chlorine Environment

Habib

Damra

Carpio

et al. 2014

J. of Materi Eng and Perform

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“…Figure 7 shows the XRD difraction peaks for aluminatitania coated SS. An intense peak was recognized around 22 °due to the alumina-titania coating [33]. Te peaks of 33 °and 50 °could also relate to the alumina-titania coating.…”

Section: Sem X-ray Difraction and Hardness Analysis Of Thementioning

confidence: 93%

Development of Alumina-Titania Composite Layers on Stainless Steel through the Detonation Spray Method and Investigation of Salt Spray Corrosion Behavior along with Surface Examination

Surya¹,

Prakash²,

Kumar³

et al. 2023

International Journal of Chemical Engineering

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Almost every metal and alloy corrodes when used in high-temperature applications. To combat this problem, ceramic coatings on the metals can be deposited for better thermal and corrosion behavior. The present study applies an alumina-titania (Al2O3-TiO2) ceramic coating to the stainless steel (SS) surface using a detonation spray process. The surface of the coated SS is probed by optical microscopy (OM), scanning electron microscopy (SEM), and X-ray diffraction (XRD). The clear differences between coated and uncoated SS have been observed based on the SEM images. The XRD pattern indicates that the Al2O3-TiO2 coating on SS has been successfully deposited. The hardness of coated and uncoated SS surfaces is determined by using the Micro Vickers hardness tester, which claims that the hardness of the SS surface has decreased after coating. Salt spray tests were used to examine the corrosion behavior of coated and uncoated SS after 12 and 24 hours. After 12 hours, no corrosion was observed on the SS. After 24 hours, however, significant corrosion of uncoated SS is observed, and the coated SS shows negligible corrosion. Based on the study, it is claimed that an Al2O3-TiO2 coating on SS has improved its corrosion behavior significantly.

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Oxidation behaviour at 1123 K of AISI 304-Ni/Al-Al<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub> multilayer system deposited by flame spray

Cited by 2 publications

References 27 publications

Performance of NiCrAlY Coatings Deposited by Oxyfuel Thermal Spraying in High Temperature Chlorine Environment

Performance of NiCrAlY Coatings Deposited by Oxyfuel Thermal Spraying in High Temperature Chlorine Environment

Development of Alumina-Titania Composite Layers on Stainless Steel through the Detonation Spray Method and Investigation of Salt Spray Corrosion Behavior along with Surface Examination

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