Effect of HVOF spraying parameters on fracture, erosion and thermal properties of Fe alloy-based coating materials

Sharma, Ratnesh; Das, Randip Kumar; Kumar, Shiv Ranjan

doi:10.1177/1464420721999682

Cited by 7 publications

(8 citation statements)

References 35 publications

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“…Fracture toughness was measured by measuring the dimension of depth (crack length ‘a’ and width of specimen ‘c’) of indentation with the help of FESEM micrograph. The indentation was created by applying a load of p. The fracture toughness Kc of coating was measured using Equation (2) [24–26]. The erosion wear assessment was carried out in Air jet erosion tester (Air Jet erosion tester, DUCOM Bangalore), India according to the ASTM G-76-13 test standard.…”

Section: Methodsmentioning

confidence: 99%

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HVOF Deposition, comparative investigation and optimum selection of molybdenum, boron, chromium, and titanium in Iron amorphous composite coatings

Sharma

Das

Kumar

2023

Surface Engineering

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The current investigation focuses on the comparative assessment of each alloying element such as titanium, chromium, boron, and molybdenum on mechanical and solid particle erosion behaviour of Iron amorphous composite coatings. Iron amorphous composite coatings were deposited on 316L steel. Based on mechanical and erosion properties, the ranking of the alloying element was derived using the Fuzzy analytic hierarchy process (FAHP) and Grey relational analysis (GRA). Eight different series of Iron-based composite coatings with varying alloying elements were deposited on 316L steel. The results indicated that titanium showed the maximum hardness and adhesion pull-off strength, boron showed maximum fracture toughness, Molybdenum indicated the lowest porosity and chromium indicated maximum corrosion resistance. The result of FAHP + GRA concluded that the ranking of Fe amorphous composite coatings followed the order as FeCSiMoBCr10Ti (C-2)> FeCSiMoBCr5Ti (C-1) FeCSiMo10BCrTi (C-6)> > FeCSiMo5BCrTi (C-5)> FeCSi10MoBCrTi (C-8) > FeCSiMoB10CrTi (C-4) > FeCSi5MoBCrTi (C-7) > FeCSiMoB5CrTi (C-3).

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Section: Methodsmentioning

confidence: 99%

“…Fracture toughness was measured by measuring the dimension of depth (crack length 'a' and width of specimen 'c') of indentation with the help of FESEM micrograph. The indentation was created by applying a load of p. The fracture toughness Kc of coating was measured using Equation (2) [24][25][26].…”

Section: Coating Characterizationmentioning

confidence: 99%

HVOF Deposition, comparative investigation and optimum selection of molybdenum, boron, chromium, and titanium in Iron amorphous composite coatings

Sharma

Das

Kumar

2023

Surface Engineering

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“…Erosion wear increased with the increase in impact speed but decreased with the increase in impact angle from 30° to 90°, Figure 7. The decrease in erosion wear rate with the increase in impingement angle may be attributed to the fact that at 30° impingement angle, micro‐ploughing is dominating factor [43]. Also, the post heat treatments of the coating material significantly improved the wear resistance.…”

Section: Effect Of Tribological Properties On Performance Of High Vel...mentioning

confidence: 99%

“… Wear rate variation of iron alloy based coating materials under varying impact speed and impingement angle [43].…”

Section: Effect Of Tribological Properties On Performance Of High Vel...mentioning

confidence: 99%

Microstructure, mechanical and tribological properties of high velocity oxy fuel thermal spray coating: A review

Sharma

Das

Kumar³

2023

Materialwissenschaft Werkst

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Iron alloy based amorphous coating materials have enormous potential in wide range of applications such as petrochemical, aerospace, ocean, and electronic communications due to their better mechanical properties, chemical properties, magnetic properties and tribological properties. The industrial applications of coating are increasing rapidly due to many advancements in the material development and coating deposition techniques. The present paper reviewed the recent progresses in deposition technologies, development of new high order alloys and composite based coating materials. In this regard, change in microstructure, elemental composition, mechanical and tribological properties on performance of iron alloy based coating properties were presented. It can be concluded that the tribological properties of coating is dependent on pre-coating and post-coating factors. Pre-coating factors include coating deposition techniques, coating layer thickness and coating parameters such as spray distance, oxygen flow rate etc. Post-coating factors include microstructure, hardness, fracture toughness and adhesion strength. Therefore, multi-criteria decision making techniques can be the best approach to find the optimum formulation of coating materials to achieve desired set of objectives under the conflicting criteria.

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“…These properties decrease with an increase in the spray distance. 8 The CNT-reinforced copper matrix results in enhanced micro-hardness compared to the hot-forged copper matrix. 9 In this process, CNTs enhanced the abrasion, corrosion, and wear resistance of coatings.…”

Section: Introductionmentioning

confidence: 99%

Hot-corrosion behaviour of CNT reinforced Cr₃C₂-NiCr coatings working under high-temperature sprayed by HVOF method

Kuruba¹,

Gaikwad²,

Shivalingappa³

2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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The thermal power plant boiler tubes experience degradation of their surfaces due to oxidation and molten salt corrosion while working at elevated temperatures. The formation of protective coating layers can overcome such surface degradation. In the current research, protective coated layers composed of Cr3C2-25% NiCr/Carbon nanotube coatings are deposited on the ASTM SA-213T12 boiler tube substrate by the High-Velocity Oxy-Fuel (HVOF) thermal method. The coating powder Cr3C2-25%NiCr is reinforced with 3, 5 and 7 wt% of Multi-Wall Carbon Nano-Tube (MWCNT) prior to deposition. The uncoated and coated specimens are evaluated for hot corrosion behaviour in the molten salt environment (Na2SO4 + 60%V2O5) for 50 cycles, constituting 1 h of heating at 600 °C. Thermogravimetric analysis is used to investigate the kinetics of hot corrosion behaviour in both coated and uncoated samples. Coatings are characterized with the help of X-ray diffraction and Scanning Electron Microscope/Energy Dispersive Spectroscopy (SEM/EDS) techniques. Microstructural investigations with the help of SEM/EDS and X-ray diffraction of coated and uncoated samples revealed that 7 wt% of CNT coated samples minimized the voids and pores of the coatings, leading to better interlocking with the substrate surface. Furthermore, it is observed in the studies that the appreciable corrosion resistance of 7 wt% of CNT composite coatings is higher than 3 and 5 wt% of CNT-coated and uncoated samples.

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Effect of HVOF spraying parameters on fracture, erosion and thermal properties of Fe alloy-based coating materials

Cited by 7 publications

References 35 publications

HVOF Deposition, comparative investigation and optimum selection of molybdenum, boron, chromium, and titanium in Iron amorphous composite coatings

HVOF Deposition, comparative investigation and optimum selection of molybdenum, boron, chromium, and titanium in Iron amorphous composite coatings

Microstructure, mechanical and tribological properties of high velocity oxy fuel thermal spray coating: A review

Hot-corrosion behaviour of CNT reinforced Cr₃C₂-NiCr coatings working under high-temperature sprayed by HVOF method

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Effect of HVOF spraying parameters on fracture, erosion and thermal properties of Fe alloy-based coating materials

Cited by 7 publications

References 35 publications

HVOF Deposition, comparative investigation and optimum selection of molybdenum, boron, chromium, and titanium in Iron amorphous composite coatings

HVOF Deposition, comparative investigation and optimum selection of molybdenum, boron, chromium, and titanium in Iron amorphous composite coatings

Microstructure, mechanical and tribological properties of high velocity oxy fuel thermal spray coating: A review

Hot-corrosion behaviour of CNT reinforced Cr3C2-NiCr coatings working under high-temperature sprayed by HVOF method

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Product

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About

Hot-corrosion behaviour of CNT reinforced Cr₃C₂-NiCr coatings working under high-temperature sprayed by HVOF method