Investigate the effects of the substrate surface roughness on the geometry, phase transformation, and hardness of laser-cladded Fe-based metallic glass coating

Ibrahim, Mahmoud Z.; Sarhan, Ahmed A.D.; Kuo, Tsung-Yuan; Yusuf, Farazila; Hamdi, Mohammed; Chien, Chi-Sheng

doi:10.1007/s00170-018-2354-6

Cited by 17 publications

(5 citation statements)

References 34 publications

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“…Next, the preplaced layer was laser-cladded under a continuous flow of Argon, to protect the molten pool from further oxidation, using a high-power diode laser machine (4.4 kW, wavelength 978-1025 ± 10 nm), Figure 1b. The laser power, scanning speed, and spot size were set to 2000 W, 45 mm/s, and 4 × 4 mm 2 , respectively, as described previously in our work [17]. Figure 2a shows a schematic for the cross-section of laser-cladded single track illustrating the relevant dimensions, the height of the track (L1), and the track width (L2).…”

Section: Laser Cladding Of Fe-based Mgmentioning

confidence: 99%

“…The predicted values of geometry and hardness, constituting the main target of the fuzzy logic control system, are listed in Table 5. A comparison was performed between experimental data [17] and the results of the geometry-hardness fuzzy system (Table 6) to verify the effectiveness of the designed FLCS in predicting the geometry and hardness of laser-cladded Fe-based MG single tracks. The values of the fuzzy logic control system are located between the experimental data values.…”

Section: Flc Base Rulesmentioning

confidence: 99%

“…These parameters affect the properties as well as the quality and geometry of the cladded layer [14][15][16]. However, the substrate surface roughness has a significant effect on the geometry and hardness of the MG coating layer applied by laser cladding as reported previously [17]. To achieve higher MG coating hardness and better geometry, a reliable systematic optimization technique is thus required.…”

Section: Introductionmentioning

confidence: 97%

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Fuzzy Control Modeling to Optimize the Hardness and Geometry of Laser Cladded Fe-Based MG Single Track on Stainless Steel Substrate Prepared at Different Surface Roughness

et al. 2022

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Metallic glass (MG) is a promising coating material developed to enhance the surface hardness of metallic substrates, with laser cladding having become popular to develop such coatings. MGs properties are affected by the laser cladding variables (laser power, scanning speed, spot size). Meanwhile, the substrate surface roughness significantly affects the geometry and hardness of the laser-cladded MG. In this research, Fe-based MG was laser-cladded on substrates with different surface roughness. For this purpose, the surfaces of the substrate were prepared for cladding using two methods: sandpaper polishing (SP) and sandblasting (SB), with two levels of grit size used for each method (SP150, SP240, SB40, SB100). The experiment showed that substrate surface roughness affected the geometry and hardness of laser-cladded Fe-based MG. To predict and optimize the geometry and hardness of laser-cladded Fe-based MG single tracks at different substrate surface roughness, a fuzzy logic control system (FLCS) was developed. The FLCS results indicate that it is an efficient tool to select the proper preparation technique of the substrate surface for higher clad hardness and maximum geometry to minimize the number of cladding tracks for full surface cladding.

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Section: Laser Cladding Of Fe-based Mgmentioning

confidence: 99%

Section: Flc Base Rulesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

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Fuzzy Control Modeling to Optimize the Hardness and Geometry of Laser Cladded Fe-Based MG Single Track on Stainless Steel Substrate Prepared at Different Surface Roughness

et al. 2022

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“…Fe-based amorphous coatings prepared by laser cladding have fewer holes and the coating size can be precisely controlled. However, due to the high laser energy, most of the prepared coatings have crystalline phases and crack [11,12]. In comparison, the high-velocity air fuel (HVAF) thermal spraying technique, which provides the advantages of high flight of sprayed particles and large kinetic energy, is widely used in the creation of Fe-based amorphous coatings [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Effect of Minor Mo Addition on Microstructure and Corrosion Resistance of High-Velocity Air Fuel-Sprayed Fe-Based Amorphous Coatings

Song,

Jing,

Zhang

et al. 2023

Coatings

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In this work, Fe64Nb3B17Si6Cr6Ni4 and Fe60Nb3B17Si6Cr6Ni4Mo4 (at. %) coatings were prepared with a high-velocity air fuel spraying method, and the effects of minor Mo addition on the microstructure, glass formation, and corrosion resistance of the coating were studied. It was found that the Mo addition improves the glass-forming ability of the alloy and a fully amorphous structure with a higher compactness was obtained in the Mo-containing coating. The thermal stability of the coating is enhanced by Mo addition and the onset crystallization temperature was increased by 20 K. In addition, the Mo-containing amorphous coating exhibited higher corrosion resistance than the Mo-free coating. The superior corrosion resistance can be attributed to the increased proportion of protective, stable Cr, Nb, and Mo oxides in the passive film and fewer defects of the Mo-containing coating.

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“…To break down the problems of preparation dimensions and high cost of bulk amorphous alloys, many attempts have been made to prepare amorphous alloy coatings with different methods, including high-velocity oxy-fuel spraying (Wu et al , 2019), arc spraying (Lin et al , 2019; Guo et al , 2015; Liu et al , 2021), laser cladding (Zhu et al , 2009; Ibrahim et al , 2018), spark plasma sintering (Singh et al , 2010) and atmospheric plasma spraying (APS) (An et al , 2014; Jiang et al , 2018). APS is widely used in coating preparation because of its advantages of low cost, simplicity and flexibility (Zhang et al , 2014).…”

Section: Introductionmentioning

confidence: 99%

Influence of nano-alumina sealing treatment on corrosion resistance of Fe-based amorphous coatings

Wei

Ban

et al. 2022

ACMM

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Purpose The purpose of this paper is to investigate the effect of nano-alumina sealant sealing treatment on corrosion behavior of the Fe-based amorphous coatings deposited on 304 stainless steel plates by atmospheric plasma spraying (APS) with different hydrogen flow rates. Design/methodology/approach The surface morphology and microstructure of the unsealed and sealed coatings were characterized by scanning electron microscopy and X-ray diffraction. The corrosion resistance of the coatings was investigated by potentiodynamic polarization test and electrochemical impedance spectroscopy experiment in 3.5 Wt.% NaCl solution. Findings Results show that a few microcracks and pores exist in the as-sprayed Fe-based amorphous coatings. The pores on the surface of the coatings after sealing treatment have been filled with nano-alumina sealant, which can effectively prevent corrosive medium from entering into coatings. Electrochemical tests results show that the corrosion resistance of the coatings before sealing treatment decreases with the increase of hydrogen flow rate and is significantly improved by sealing treatment. Originality/value The effect of nano-alumina sealant sealing treatment on corrosion resistance of APS-sprayed Fe-based amorphous coatings is revealed. The corrosion resistance of the as-sprayed Fe-based amorphous coating can be significantly improved by nano-alumina sealant sealing treatment because of the blocking effect of nano-alumina sealant on corrosive medium, which confirms that the application of nano-alumina sealant sealing treatment is of a practical option to improve corrosion resistance of as-sprayed thermal sprayed coatings.

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Investigate the effects of the substrate surface roughness on the geometry, phase transformation, and hardness of laser-cladded Fe-based metallic glass coating

Cited by 17 publications

References 34 publications

Fuzzy Control Modeling to Optimize the Hardness and Geometry of Laser Cladded Fe-Based MG Single Track on Stainless Steel Substrate Prepared at Different Surface Roughness

Fuzzy Control Modeling to Optimize the Hardness and Geometry of Laser Cladded Fe-Based MG Single Track on Stainless Steel Substrate Prepared at Different Surface Roughness

Effect of Minor Mo Addition on Microstructure and Corrosion Resistance of High-Velocity Air Fuel-Sprayed Fe-Based Amorphous Coatings

Influence of nano-alumina sealing treatment on corrosion resistance of Fe-based amorphous coatings

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