Review of Thermal Spray Coating Applications in the Steel Industry: Part 1—Hardware in Steel Making to the Continuous Annealing Process

Matthews, Steven; James, Bryony

doi:10.1007/s11666-010-9518-8

Cited by 68 publications

(41 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In continuous casting process, caster rolls are utilized as serial support rollers to convey the solidified steel ingots. [1][2][3][4][5][6] As cooling water is sprayed on the surface of caster rolls, oxidation, and corrosion-induced damages as well as the thermal cracks occur. 7,8 Another application for oxidation-related service conditions is the thermal barrier coatings (TBCs).…”

Section: Introductionmentioning

confidence: 99%

Ferrochromium slag as a protective coating material against oxidation for caster rolls

Küçük

Öge

Gök

et al. 2018

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

In this study, ferrochromium (FeCr) slag, which is available as an industrial waste, is proposed as a protective surface coating material particularly for protection of continuous casting rolls against oxidation. FeCr slag was successfully deposited with atmospheric plasma spray (APS) method. Before the coating process, FeCr slag powder prepared in the particle size range of 5‐38 μm, was investigated using conventional characterization methods (XRD, SEM, TGA etc.). Thermal Barrier Coating (TBC) system was used as a basis for deposition processes. Accordingly, NiCoCrAlY (Amdry, −45 + 5 μm) was firstly deposited as metallic bond coat layer onto the surface of AISI 420 substrate, and then FeCr slag layer was deposited as the top coating layer. After the deposition of FeCr slag powder, the resulting coating layer was found to have low porosity with a homogeneous microstructure. The deposited FeCr slag coatings were subjected to isothermal oxidation tests at different temperatures and test durations for determination of their oxidation behavior and upper operating temperature limits. The results obtained from this study indicate that FeCr slag can be considered as an alternative protective coating material for caster rolls which are subjected to high temperatures up to 800°C.

show abstract

Section: Introductionmentioning

confidence: 99%

Ferrochromium slag as a protective coating material against oxidation for caster rolls

Küçük

Öge

Gök

et al. 2018

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

show abstract

“…Coatings cover the surface of structural steel and change its surface properties, providing a barrel between the steel and the corrosive environments and preventing the presence of water and oxygen to steel. There are two types of coating which are commonly applied in practice, including paints and metallic coatings [5][6][7][8][9][10]. Paints use layers of soft materials such as polyurethane to block the entrance of water and oxygen [5][6][7], and some recently developed paints are able to provide sacrificial cathodic protection in addition to the physical blockage [8].…”

Section: Introductionmentioning

confidence: 99%

“…However, due to the low abrasion resistance, paints usually have a limited extension of service life to structures. Thus, when structural steel is in service under aggressive environments, non-ferrous metallic coatings are required instead of or in addition to paints, which are widely applied for corrosion prevention in coastal eras [5,7,9,10].…”

Section: Introductionmentioning

confidence: 99%

Pitted Corrosion Detection of Thermal Sprayed Metallic Coatings Using Fiber Bragg Grating Sensors

et al. 2017

View full text Add to dashboard Cite

Metallic coatings using thermal spraying techniques are widely applied to structural steels to protect infrastructure against corrosion and improve durability of the associated structures for longer service life. The thermal sprayed metallic coatings consisting of various metals, although have higher corrosion resistance, will still corrode in a long run and may also subject to corrosion induced damages such as cracks. Corrosion and the induced damages on the metallic coatings will reduce the effectiveness of the coatings for protection of the structures. Timely repair on these damaged metallic coatings will significantly improve the reliability of protected structures again deterioration. In this paper, an inline detection system for corrosion and crack detection was developed using fiber Bragg (FBG) grating sensors. Experimental results from laboratory accelerated corrosion tests showed that the developed sensing system can quantitatively detect corrosion rate of the coating, corrosion propagations, and cracks initialized in the metallic coating in real time. The developed system can be used for real-time corrosion detection of coated metal structures in field.

show abstract

“…13) The thermal spray techniques employ different kinds of heat sources, such as an electric arc, combustion, and plasma, to melt the particles. 1) Typically, the coating involves applying metallic and ceramic coating layers onto a super-alloy substrate.…”

Section: Introductionmentioning

confidence: 99%

Effects of Curvature on the Flow Characteristics and Particle Behavior in the Flame Spray Process

et al. 2015

View full text Add to dashboard Cite

The present study investigates numerically the thermal and flow characteristics and transient particle behavior in the conventional flame spray process by using the computational fluid dynamics (CFD) code (ANSYS Fluent V. 16.1). From geometrical consideration, it is noted that the deposition angle of a particle decreases drastically on a curved surface because of the curvature effect, and significantly affects the normal impact velocity of the particle. Numerical results indicated that the normal component of the particle impact velocity on the curved surface was lower than that on a flat surface by up to 5.7%. This result is significant with regard to the adhesive characteristics, as binding energy with the substrate is proportional to the square of the particle's normal impact velocity. The influence of spray distances and radius of the curved substrate were examined and the corresponding results would be useful in finding optimal operating conditions for the curved substrate. It was observed in this study that the spray distance exhibited a more dominant effect on the particle impact velocity, substantially associated with the coating quality of the deposited layer.

show abstract

Review of Thermal Spray Coating Applications in the Steel Industry: Part 1—Hardware in Steel Making to the Continuous Annealing Process

Cited by 68 publications

References 17 publications

Ferrochromium slag as a protective coating material against oxidation for caster rolls

Ferrochromium slag as a protective coating material against oxidation for caster rolls

Pitted Corrosion Detection of Thermal Sprayed Metallic Coatings Using Fiber Bragg Grating Sensors

Effects of Curvature on the Flow Characteristics and Particle Behavior in the Flame Spray Process

Contact Info

Product

Resources

About