The Corrosion Resistance Mechanism of Fe-Based Amorphous Coatings Synthesised by Detonation Gun Spraying

Ning, Weichao; Zhai, Hua; Xiao, Rong-zhen; He, Dongqing; Liang, Gang; Wu, Yaoming; Li, Wensheng; Li, Xuqiang

doi:10.1007/s11665-020-04876-w

Cited by 24 publications

(10 citation statements)

References 28 publications

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“…Besides, as the content of Fe-based amorphous alloys increases, the microhardness of the spray welding layer increases, and has a great relationship with the microstructure. The increase of the carbide phase in the spray welding layer and the distribution lead to an increase in the hardness of the spray welding layer [40][41][42]. Wear mass loss is an important factor in characterizing the wear resistance of a material.…”

Section: Resultsmentioning

confidence: 99%

Microscopic Characteristics and Properties of Fe-Based Amorphous Alloy Compound Reinforced WC-Co-Based Coating via Plasma Spray Welding

Wang

et al. 2020

Processes

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Plasma spray welding, as one of the material surface strengthening techniques, has the advantages of low alloy material consumption, high mechanical properties and good coating compactness. Here, the Co alloy, WC and Fe-based amorphous alloy composite coating is prepared by the plasma spray welding method, and the coating characteristics are investigated. The results indicate that the coatings have a full metallurgical bond in the coating/substrate interface, and the powder composition influences the microstructures and properties of the coating. The hardness of coatings increases with the mass fraction of the Fe-based amorphous alloy. The spray welding layer has a much higher wear resistance compared with the carbon steel, and the Fe-20 exhibits a superior wear resistance when compared to others. The results indicate that the amorphous alloy powders are an effective additive to prepare the coating by plasma spray welding for improving the wear resistance of the coating.

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Section: Resultsmentioning

confidence: 99%

Microscopic Characteristics and Properties of Fe-Based Amorphous Alloy Compound Reinforced WC-Co-Based Coating via Plasma Spray Welding

Wang

et al. 2020

Processes

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“…The effect of a salty environment reached up to its inner layer only where porosity is high, and thickness is low. Literature studies also reported that significant oxides of iron are FeO which convert into divalent Fe2O3 [36], Cr2O3 [37], MoO2 and MoO3 [38] obtained during the passivation layer and protect the substrate against corrosion attacks. To further investigate the corrosion products, EDX was performed at 40 µm at three spectrum pits Figure 9 were taken that are highly corroded.…”

Section: Electrochemical Studies Of Coated Layermentioning

confidence: 99%

Long-Term Potentiodynamic Testing and Tribometric Properties of Amorphous Alloy Coatings under Saline Environment

Iqbal

Moskal

et al. 2022

Molecules

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Protective coatings for harsh environments are always welcome, but they must overcome profound challenges, including corrosion and wear resistance. The purpose of this study is to look into the long-term potentiodynamic polarization measurements and dry tribometric behavior of plasma-sprayed amorphous coatings on AISI 1035 mild steel. To investigate the impact of unique active polarization potentials on the electrochemical studies of the iron-based amorphous layer, which compares favorably to AISI 1035 mild steel, the active potential polarization curve and friction coefficient tests were performed. Scanning electron microscopy (SEM) and energy dispersive x-ray (EDX) analyses were used to investigate the coating’s corrosion behavior. Their mechanical (Tribometric tests at higher sliding speeds) and chemical properties (electrochemical potentiodynamic polarization investigations) have also been thoroughly investigated. There is enough validation that these protective coatings can be used in hostile environments. The effects of long-term corrosion for 24 and 48 h were thoroughly examined. Tribometric examinations revealed that amorphous layers are highly resistant under dry conditions, as they offered a very low and stable friction coefficient less than 4 μ with micro Vickers hardness 1140 ± 22.14 HV, which is more than twice as compared to mild steel AISI 1035. The corrosion resistance of coatings in 3.5 wt % NaCl solution displays active transition characteristics of activation, passivation, over passivation, and pitting, as shown by the potentiodynamic polarization curves.

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“…From the curve, it can be observed that a large amount of Mo 6+ is formed in the coating (binding energy = 231.7 eV). From the studies of Tian et al and Lee et al [33,38] it was found that hexavalent Mo could dissolve in water to form molybdate (MoO 4…”

Section: Corrosion Mechanism Of Nickelbased Alloy Coatingsmentioning

confidence: 99%

“…Fe 2p 1/2 , 2p 3/2 FeO 710.3 723.3, [36] 709.3 [37] 710.3 Cr 2p 1/2 , 2p 3/2 Cr 583.5, 574.4 583.3, [36] 574.1 [38] 583.5, 574.4…”

Section: Elementmentioning

confidence: 99%

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Study on the corrosion‐wear behavior of Ni_67.57Cr_15.59Fe_2.83C_0.6Si_3.98B_3.47O_0.045Mo_2.97Co_2.94 nickel alloy coating prepared by high velocity oxygen fuel spraying

Sheu

Chang

et al. 2023

Materials & Corrosion

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Ni‐based alloy coatings are sprayed on 304 stainless steel substrates using a high velocity oxygen fuel spraying (HVOF) method. The corrosion‐wear behavior was analyzed using a “block on ring” corrosion‐wear system. This study mainly discusses the effect of different applied potentials on corrosion and wear interaction using scanning electron microscopy, transmission electron microscopy and X‐ray photoelectron spectroscopy (XPS). The results show that as the applied potential increases, the weight loss and corrosion current density of the nickel‐based alloy coating increase accordingly. Increasing the applied potential, the total loss of corrosion‐wear (Wtotal) of the coating increased significantly. Under high applied potential, the main factor for the serious damage is the interaction of corrosion and wear. In addition, the friction coefficient of the coating first increases and then decreases with increasing applied potential. The surface morphology of the passivation layer and the thickness of corrosion oxide can have an important influence on the corrosion‐wear process. Based on the XPS analysis results, the composition of the passive film formed on the surface of the coating in the process of corrosion‐wear includes NiO, Cr2O3, MoO2, and MoO42−.

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The Corrosion Resistance Mechanism of Fe-Based Amorphous Coatings Synthesised by Detonation Gun Spraying

Cited by 24 publications

References 28 publications

Microscopic Characteristics and Properties of Fe-Based Amorphous Alloy Compound Reinforced WC-Co-Based Coating via Plasma Spray Welding

Microscopic Characteristics and Properties of Fe-Based Amorphous Alloy Compound Reinforced WC-Co-Based Coating via Plasma Spray Welding

Long-Term Potentiodynamic Testing and Tribometric Properties of Amorphous Alloy Coatings under Saline Environment

Study on the corrosion‐wear behavior of Ni_67.57Cr_15.59Fe_2.83C_0.6Si_3.98B_3.47O_0.045Mo_2.97Co_2.94 nickel alloy coating prepared by high velocity oxygen fuel spraying

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The Corrosion Resistance Mechanism of Fe-Based Amorphous Coatings Synthesised by Detonation Gun Spraying

Cited by 24 publications

References 28 publications

Microscopic Characteristics and Properties of Fe-Based Amorphous Alloy Compound Reinforced WC-Co-Based Coating via Plasma Spray Welding

Microscopic Characteristics and Properties of Fe-Based Amorphous Alloy Compound Reinforced WC-Co-Based Coating via Plasma Spray Welding

Long-Term Potentiodynamic Testing and Tribometric Properties of Amorphous Alloy Coatings under Saline Environment

Study on the corrosion‐wear behavior of Ni67.57Cr15.59Fe2.83C0.6Si3.98B3.47O0.045Mo2.97Co2.94 nickel alloy coating prepared by high velocity oxygen fuel spraying

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Product

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Study on the corrosion‐wear behavior of Ni_67.57Cr_15.59Fe_2.83C_0.6Si_3.98B_3.47O_0.045Mo_2.97Co_2.94 nickel alloy coating prepared by high velocity oxygen fuel spraying