Effects of post annealing on the microstructure, mechanical properties and cavitation erosion behavior of arc-sprayed FeNiCrBSiNbW coatings

Lin, Junjie; Wang, Zehua; Peng, Lin; Cheng, Jiangbo; Zhang, Xin; Hong, Sheng

doi:10.1016/j.matdes.2014.10.066

Cited by 37 publications

(14 citation statements)

References 39 publications

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“…Other than the initial surface roughness of the coating, the microstructure and phase composition were also important characteristics in determining the cavitation erosion resistance of the coatings. According to our previous study [11], the formation of oxides on the coating surface and between intersplats and the reduction of amorphous phase content would contribute to the decrease of the cavitation erosion resistance. The negative effect of the coating porosity on the cavitation erosion resistance has been indicated by other researchers [13,31].…”

Section: Methodsmentioning

confidence: 81%

“…In our earlier studies, FeCrBSiNb(Ni/W) amorphous/nanocrystalline coatings were synthesized successfully using the arc spraying process and their cavitation erosion behavior was reported [16,17]. We demonstrated that the cavitation erosion resistance of arc-sprayed Fe-based amorphous/nanocrystalline coating deteriorated with increasing annealing temperature [11]. Previous investigations mainly described in detail the relationship among microstructure, mechanical properties and cavitation erosion resistance of the Fe-based amorphous/nanocrystalline coatings.…”

Section: Introductionmentioning

confidence: 84%

“…Fe-based amorphous/nanocrystalline coatings prepared by thermal spraying have been widely adopted by hydraulic machinery, power plants and coastal installations because of their desirable combination of relatively low material cost, high hardness and toughness, and outstanding corrosion and wear resistance [9][10][11][12]. In recent years, considerable efforts have been devoted to investigate the cavitation erosion behavior of Fe-based amorphous/nanocrystalline coatings [13][14][15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Initial Surface Roughness on Cavitation Erosion Resistance of Arc-Sprayed Fe-Based Amorphous/Nanocrystalline Coatings

et al. 2017

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Abstract:The arc spraying process was used to prepare Fe-based amorphous/nanocrystalline coating. The cavitation erosion behaviors of FeNiCrBSiNbW coatings with different surface roughness levels were investigated in distilled water. The results showed that FeNiCrBSiNbW coating adhered well to the substrate, and was compact with porosity of less than 2%. With increasing initial surface roughness, the coatings showed an increase in mass loss of cavitation erosion damage. The amount of pre-existing defects on the initial surface of the coatings was found to be a significant factor for the difference in the cavitation erosion behavior. The cavitation erosion damage for the coatings was a brittle erosion mode. The evolution of the cavitation erosion mechanism of the coatings with the increase of the initial surface roughness was micro-cracks, pits, detachment of fragments, craters, cracks, pullout of the un-melted particle, and massive exfoliations.

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Section: Methodsmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

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Effect of Initial Surface Roughness on Cavitation Erosion Resistance of Arc-Sprayed Fe-Based Amorphous/Nanocrystalline Coatings

et al. 2017

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“…In the thermal spraying technologies mentioned above, SPS has gradually caught the attention of more researchers. Compared with other spraying technologies [9,17], the faster particle velocity and higher temperature heat source contributes to acquiring more dense lamellar structure and less porosity Fe-amorphous coatings, which are important for the corrosion resistance of the coating.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, heat treatment can also cause grain growth [17][18][19] which directly affects mechanical properties and corrosion resistance of coatings. In the previous studies, this series of changes of low Cr content Fe-based amorphous/nanocrystalline coatings had been reported by other researchers [20][21][22][23], but the effect of heat treatment on the high Cr content Fe-based amorphous/nanocrystalline coatings were rarely studied.…”

Section: Introductionmentioning

confidence: 99%

Influence of Different Heat Treatment Temperatures on the Microstructure, Corrosion, and Mechanical Properties Behavior of Fe-Based Amorphous/Nanocrystalline Coatings

et al. 2019

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Fe-based amorphous/nanocrystalline coatings with smooth, compact interior structure and low porosity were fabricated via supersonic plasma spraying (SPS). The coatings showed outstanding corrosion resistance in a 3.5% NaCl solution at room temperature. In order to analyze the effect of annealing treatment on the microstructure, corrosion resistance and microhardness, the as-sprayed coating was annealed for 1 h under different temperatures such as 350, 450, 550 and 650 °C, respectively. The results showed that the number of oxides and cracks in the coatings presented an obvious increase with increasing annealing temperature, and the corrosion resistance of the coatings showed an obvious reduction. However, the microhardness of coatings showed an important increase. The microhardness of the coating could reach 1018 HV when the heat treatment temperature reached 650 °C. The X-ray diffraction (XRD) results showed that there appeared a number of crystalline phases in the coating when the heat treatment temperature was at 650 °C. The crystalline phases led to the increase of the microhardness.

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Current insights into the factors affecting the erosion behaviour of iron alloy based coating material

Kumar,

Sharma

2024

Materialwissenschaft Werkst

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The present paper reviewed the role of factors influencing the wear properties of iron alloy‐based coating material. In brief, these factors are categorized into four major types such as substrate properties, high‐velocity oxy‐fuel spraying parameters, heat treatment processes and wear testing parameters. Substrate properties include roughness, thermal resistance, and adhesive strength between substrate and coating materials. High velocity oxy fuel parameters include spray distance, oxygen flow rate, fuel flow rate, angle of spray, spray density, coating speed, thickness, number of coating layers etc. Erosion wear testing parameters include impact speed, impingement angle, erodent discharge, slurry concentration etc. Furthermore, erosion wear testing parameters are sub‐categorized into three types which are particulate‐based parameters such as size, shape and hardness of particle, impact‐based parameters such as angle of impact, impact velocity, and composition‐based parameters such as microstructure, physical and mechanical properties of materials. The annealing process speeds up the development of crystal phases. Therefore, to get the best coating materials, a detailed investigation and optimization of all the factors must be performed.

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Effects of post annealing on the microstructure, mechanical properties and cavitation erosion behavior of arc-sprayed FeNiCrBSiNbW coatings

Cited by 37 publications

References 39 publications

Effect of Initial Surface Roughness on Cavitation Erosion Resistance of Arc-Sprayed Fe-Based Amorphous/Nanocrystalline Coatings

Effect of Initial Surface Roughness on Cavitation Erosion Resistance of Arc-Sprayed Fe-Based Amorphous/Nanocrystalline Coatings

Influence of Different Heat Treatment Temperatures on the Microstructure, Corrosion, and Mechanical Properties Behavior of Fe-Based Amorphous/Nanocrystalline Coatings

Current insights into the factors affecting the erosion behaviour of iron alloy based coating material

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