Effect of fuel pressure, feed rate, and spray distance on cavitation erosion of Rodojet sprayed Al2O3+50%TiO2 coated AISI410 steel

Pandey, Shivam; Bansal, Ankur; Omer, Ankita; Singla, Anil Kumar; Goyal, Deepak Kumar; Singh, Jagtar; Gupta, Munish Kumar

doi:10.1016/j.surfcoat.2021.126961

Cited by 16 publications

(5 citation statements)

References 47 publications

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“…Requirements in many fields of machine operation and production techniques led to applications for various alumina-based coatings, for example, as electrically insulating or wear-protection layers [2]. Such coatings are primarily found in the machinery, marine, chemical, food, textile, printing, and energy industries [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Wear Behavior Analysis of Al2O3 Coatings Manufactured by APS and HVOF Spraying Processes Using Powder and Suspension Feedstocks

et al. 2021

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Thermally sprayed ceramic coatings are applied for the protection of surfaces that are exposed mainly to wear, high temperatures, and corrosion. In recent years, great interest has been garnered by spray processes with submicrometric and nanometric feedstock materials, due to the refinement of the structure and improved coating properties. This paper compares the microstructure and tribological properties of alumina coatings sprayed using conventional atmospheric plasma spraying (APS), and various methods that use finely grained suspension feedstocks, namely, suspension plasma spraying (SPS) and suspension high-velocity oxy-fuel spraying (S-HVOF). Furthermore, the suspension plasma-sprayed Al2O3 coatings have been deposited with radial (SPS) and axial (A-SPS) feedstock injection. The results showed that all suspension-based coatings demonstrated much better wear resistance than the powder-sprayed ones. S-HVOF and axial suspension plasma spraying (A-SPS) allowed for the deposition of the most dense and homogeneous coatings. Dense-structured coatings with low porosity (4 vol.%) and good cohesion to the metallic substrate, containing a high content of α–Al2O3 phase (56 vol.%) and a very low wear rate (0.2 ± 0.04 mm3 × 10−6/(N∙m)), were produced with the S-HVOF method. The wear mechanism of ceramic coatings included the adhesive wear mode supported by the fatigue-induced material delamination. Moreover, the presence of wear debris and tribofilm was confirmed. Finally, the coefficient of friction for the coatings was in the range between 0.44 and 0.68, with the highest values being recorded for APS sprayed coatings.

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Section: Introductionmentioning

confidence: 99%

Wear Behavior Analysis of Al2O3 Coatings Manufactured by APS and HVOF Spraying Processes Using Powder and Suspension Feedstocks

et al. 2021

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“…Hydroelectric power plants play a vital role in meeting the world's growing energy demands by harnessing the power of flowing water [1]. However, the efficient operation of these plants can be hindered by various processes namely wear and tear of hydro-machinery blades that lead to the deterioration of machinery and equipment [2]. One of the prominent mechanisms causing damage is slurry erosion.…”

Section: Introductionmentioning

confidence: 99%

Influence of laser texturing on hydrophobicity and slurry erosion behaviour of VC-CuNiCr based HVOF coatings

Singh

Singla

Bansal

2023

Surf. Topogr.: Metrol. Prop.

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Superhydrophobic surfaces had gained attention all over the world owing to their unique properties such as self-cleaning, drag reduction, and anti-bacterial etc. The current research has used the laser texturing approach to create a micro-textured surface over SS316 steel with HVOF sprayed VC and CuNi-Cr coating. Aspects of static contact angle, cross-sectional characterization, hardness, erosive wear resistance were compared with textured and non-textured surfaces. Slurry erosion experimentation was conducted as per ASTM G-73 standards using water (slurry) jet erosion test rig. From the results, it was concluded that laser texturing can be used as an effective technique for enhancing the static contact angle; development of pillar like structure can be said as a probable reason for the development of said effect. The failure mechanism was analyzed using scanning electron microscopy (SEM) images; and it was noted that hard surfaces experienced brittle mode of failure whereas soft surfaces experienced ductile mode of failure.

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“…[1][2][3] In particular, hydro turbine components failure generally takes place due to the presence of two modes of wear, that is, abrasive wear and erosive wear. 4,5 Here, wear occurs from the interaction of the slurry particles on the target surface which lead to the detachment of the particles from the target surface and causes degradation of the surface. 6,7 This issue is considerably harsh in the hydropower plants that are fed with the influents emerging from the Himalayan ranges, particularly in India and Nepal.…”

Section: Introductionmentioning

confidence: 99%

“…6,7 This issue is considerably harsh in the hydropower plants that are fed with the influents emerging from the Himalayan ranges, particularly in India and Nepal. 4,5 Researchers in the past have reported that the degradation of materials depends upon the nature of the material, erodent morphology, and impingement parameters. [8][9][10][11] Among the various parameters investigated, it was reported that impact angle, impact velocity, and slurry concentration are the significant parameters that affect the slurry erosion behavior.…”

Section: Introductionmentioning

confidence: 99%

Investigations on erosion performance of carbon fiber–epoxy-based composite adhesion on 16Cr5Ni steel

Sharma¹,

Goyal

Bansal

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part E:

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This work presents a novel insight into slurry erosion behavior of thin layer of carbon fiber–epoxy-based composite adhered on 16Cr5Ni steel (adhesive coating) to evaluate its viability as a feasible candidate for slurry erosion applications. Experiments were conducted on a laboratory-developed slurry erosion test rig under accelerated conditions to study the effect erosion parameters namely slurry concentration, impact angle, and impact velocity. Under all the experimental conditions, adhesive coating showed better slurry erosion resistance in comparison with bare 16Cr5Ni steel specimens. Scanning electron microscopy analysis revealed that in the case of bare 16Cr5Ni steel; ploughing, micro-cutting, crater, plastic deformation, and lip formation were identified as main mechanism responsible for slurry erosion, whereas in the case of adhesive coating; pitting, cracking, fracturing, and shearing-off were found to be mainly responsible for material loss. It implies that adhesive coating showed a brittle mode of failure under slurry erosion conditions, whereas 16Cr5Ni steel exhibited a ductile mode of erosion.

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Effect of fuel pressure, feed rate, and spray distance on cavitation erosion of Rodojet sprayed Al2O3+50%TiO2 coated AISI410 steel

Cited by 16 publications

References 47 publications

Wear Behavior Analysis of Al2O3 Coatings Manufactured by APS and HVOF Spraying Processes Using Powder and Suspension Feedstocks

Wear Behavior Analysis of Al2O3 Coatings Manufactured by APS and HVOF Spraying Processes Using Powder and Suspension Feedstocks

Influence of laser texturing on hydrophobicity and slurry erosion behaviour of VC-CuNiCr based HVOF coatings

Investigations on erosion performance of carbon fiber–epoxy-based composite adhesion on 16Cr5Ni steel

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