Thermally sprayed coatings resistant to erosion and corrosion for power plant boilers - A review

Szymański, K.; Hernas, A.; Moskal, G.; Myalska, Hanna

doi:10.1016/j.surfcoat.2014.10.046

Cited by 133 publications

(63 citation statements)

References 17 publications

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“…The choice of materials and coatings for use in specific conditions should include [1][2][3][4]: -identifying the types and factors causing wear; -defining the requirements of the substrate material (chemical composition, temperature applications, the surface condition and so on); -definition of tasks and technical requirements for the coating (cost, maximum wear, and the like). In turn, the factors determining the choice of technology applying surface layers are, e.g.…”

Section: Introductionmentioning

confidence: 99%

“…In turn, the factors determining the choice of technology applying surface layers are, e.g. [1][2][3][4]: -the possibility of given type material application and produce the desired structure of the chosen technology; -type of the element and protected area as well as the shape of protected elements; -the efficiency and economy of the process -the production time of coatings and material, energy consumption, real cost; -qualifications and experience of persons performing protection.…”

Section: Introductionmentioning

confidence: 99%

“…Influence of the spraying technology on the protective properties of the coatings has been the subject of many studies [1][2][3][4][5][6]. Generally we can say, that the resistance of coatings to complex corrosion-erosion wear conditions resulted primarily from the chemical composition of the coating and its structure (Fig.…”

Section: Introductionmentioning

confidence: 99%

“…1). The structure was determined by the type of technology used spraying [1][2][3][4][5][6]. The coatings with a homogeneous fine dispersive morphology structure and low porosity have got improved protective properties.…”

Section: Introductionmentioning

confidence: 99%

“…The presented idea of new hybrid spraying method is part of this trend. In this paper, the presented method and selected results are only reconnaissance research and be continued in research project [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

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New Technological Concept for Thermal Spray Protective Coatings

Szczucka-Lasota

Piwnik

2017

Archives of Metallurgy and Materials

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Thermally spraying with micro-jet cooling is an innovate technology. It is possible to get fine dispersive structure of coatings during the shorter time in comparable to the classical high velocity oxygen fuel process (HVOF). It corresponds with good corrosion-erosion properties of structure. In the paper the parameters of the spraying with micro-jet cooling process are presented. The selected properties of coatings obtained by hybrid method are presented. The results of wear tests for hybrid and HVOF coating are compared. Results of investigation are very optimistic. The presented technology should be adapted to the actual production of protective coating for machines and construction working in wear conditions.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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New Technological Concept for Thermal Spray Protective Coatings

Szczucka-Lasota

Piwnik

2017

Archives of Metallurgy and Materials

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Effect of water vapor on the oxidation behavior of HVAF‐sprayed NiCr and NiCrAlY coatings

Sadeghimeresht

Eklund

Simon

et al. 2018

Materials & Corrosion

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Isothermal oxidation behavior of NiCr and NiCrAlY coatings deposited onto low alloy 16Mo3 steel by high‐velocity air fuel (HVAF) process was investigated in 5% O2 + 20% H2O + N2 at 600 °C for 168 h. Whereas NiCrAlY showed lower mass gain compared to NiCr, both coatings succeeded in maintaining the integrity with the substrate during the exposure without any breakaway oxidation. A thin Cr‐rich oxide scale (Cr2O3) formed on NiCr, and a thin mixed oxide scale (Al2O3 with NiCr2O4) formed on NiCrAlY significantly increasing the oxidation protection in the presence of water vapor.

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Effect of substrate pre‐treatment on the low cycle fatigue performance of tungsten carbide‐cobalt coated additive manufactured 316 L substrates

Tillmann

Hagen

Garthe

et al. 2020

Materialwissenschaft Werkst

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Numerous studies already identified that the fatigue strength of 316 L parts processed by laser beam melting (LBM) is distinctly affected by the surface integrity. Among others, surface defects as well as residual stresses are of crucial importance. Despite new findings in the field of surface engineering of laser beam melting (LBM) parts, the low cycle fatigue strength of thermally sprayed additively manufactured substrates has not been in the focus of research to date. This study aims at evaluating the effect of different pre‐treatments onto 316 L substrates processed by laser beam melting (LBM) prior to the deposition of a high velocity oxy‐fuel (HVOF) sprayed tungsten carbide‐cobalt coating and their effect on the low cycle fatigue strength. Therefore, 316 L substrates were examined in their as‐built state as well as after grit blasting with regards to the surface roughness, strain hardening effects, and residual stresses. To differentiate between topographical effects and residual stress related phenomena, stress‐relieved 316 L substrates served as reference throughout the investigations. The tungsten carbide‐cobalt coated and differently pre‐treated 316 L substrates were mechanically tested under quasi‐static and dynamic load conditions. Besides the low cycle fatigue strength, the fracture toughness as well as the fracture mechanism were identified based on fracture surface analysis.

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Thermally sprayed coatings resistant to erosion and corrosion for power plant boilers - A review

Cited by 133 publications

References 17 publications

New Technological Concept for Thermal Spray Protective Coatings

New Technological Concept for Thermal Spray Protective Coatings

Effect of water vapor on the oxidation behavior of HVAF‐sprayed NiCr and NiCrAlY coatings

Effect of substrate pre‐treatment on the low cycle fatigue performance of tungsten carbide‐cobalt coated additive manufactured 316 L substrates

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