A contribution to the surface analysis and characterisation of HVOF coatings for petrochemical application

Scrivani, A.; Ianelli, S.; Rossi, Alessandra; Groppetti, R.; Casadei, F.; Rizzi, G.

doi:10.1016/s0043-1648(01)00621-4

Cited by 108 publications

(47 citation statements)

References 1 publication

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“…The microhardness of the EWAC 1001 coatings was measured to be around 890 Hv and is almost identical to the findings of Scrivani et al [21] which is evident from the hardness profiles presented in Figure 4. The hardness value for EWAC 1001 + WC (20%) is around 965 Hv, which is higher than EWAC 1001 coatings.…”

Section: Resultssupporting

confidence: 87%

Studies on Influence of WC on Scratch and Hot Corrosion Resistance of AISI H13 Steel by Flame-Sprayed Coatings of EWAC 1001

Kumar

Arivazhagan

2011

ISRN Materials Science

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This paper presents the experimental investigations carried out to study the influence of addition of Tungsten Carbide (WC) on the scratch resistance and high-temperature corrosion behaviour of flame-sprayed EWAC 1001 coatings on the AISI H13 steel substrate. The improvement in properties was analysed by conducting various tests such as microstructural analysis, microhardness, and scratch tests. Moreover, high-temperature corrosion tests were carried out on the coated as well as uncoated AISI H13 steel by exposing the material to air oxidation at 700• C under cyclic conditions. The thermogravimetric technique was used to establish kinetics of corrosion, whereas XRD and SEM/EDAX techniques which were used to analyze the AISI H13 steel with EWAC 1001 coating containing WC showed better resistance to high-temperature corrosion as compared to that of uncoated AISI H13 steel. It is observed that the formation of Cr 2 O 3 , NiO, and NiCr 2 O 4 contributes to the enhancement of high temperature corrosion resistance of the coating. The formation of unprotective Fe 2 O 3 oxide leads to intense spalling and peeling of the scales in the uncoated material. The results presented in this paper would be beneficial for improving properties of tools used in the die-casting industry.

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Section: Resultssupporting

confidence: 87%

Studies on Influence of WC on Scratch and Hot Corrosion Resistance of AISI H13 Steel by Flame-Sprayed Coatings of EWAC 1001

Kumar

Arivazhagan

2011

ISRN Materials Science

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“…Particle erosion and surface wear are associated to corrosion by hydrogen sulphide during oil and gas flow. For such applications, Scrivani et al (2001) have characterized the following HVOFcoatings : NiAl and composite material WC/intermetallic compounds containing Ni, Cr, Co and Mo. WC-CoCr carbide coatings showed high erosion resistance due to their elevated micro hardness.…”

Section: Non-sacrificial Coatingsmentioning

confidence: 99%

Thermal Sprayed Coatings Used Against Corrosion and Corrosive Wear

Fauchais¹,

Vardelle²

2012

Advanced Plasma Spray Applications

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“…Due to its excellent corrosion resistance 6,7 , Inconel 625 often appears as an option for coating steels for operation in aggressive environments, such as sea water with CO 2 and H 2 S, especially in conditions where wear and erosion are not major issues 8 . For the aforementioned reasons, HVOFspraying is an attractive way of applying such coatings 9,10 .…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Influence of Surface Finishing on the Corrosion Resistance of HVOF Applied Inconel 625 Coatings on Steel

et al. 2017

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In this work, the corrosion resistance of Inconel 625 coatings applied to AISI 4140 steel plates was evaluated. Coatings were produced by High Velocity Oxygen Fuel (HVOF) by use of two different equipment which use either kerosene (liquid) or propane (gas) as fuel. The resulting coatings were evaluated in two conditions: as-deposited and after a surface finishing process by grinding. Residual stress distributions in the coatings were characterized by X-ray diffraction and their morphology was verified through metallography and roughness measurements. Potentiodynamic polarization corrosion testing complemented their analysis. The results show a strong influence of the surface finishing process on the corrosion performance of the coatings.

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A contribution to the surface analysis and characterisation of HVOF coatings for petrochemical application

Cited by 108 publications

References 1 publication

Studies on Influence of WC on Scratch and Hot Corrosion Resistance of AISI H13 Steel by Flame-Sprayed Coatings of EWAC 1001

Studies on Influence of WC on Scratch and Hot Corrosion Resistance of AISI H13 Steel by Flame-Sprayed Coatings of EWAC 1001

Thermal Sprayed Coatings Used Against Corrosion and Corrosive Wear

Evaluation of the Influence of Surface Finishing on the Corrosion Resistance of HVOF Applied Inconel 625 Coatings on Steel

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