Corrosion Mechanism of Plasma-Sprayed Fe-Based Amorphous Coatings with High Corrosion Resistance

Chu, Zhenhua; Deng, Wenxing; Zheng, Xingwei; Zhou, Ya Jun; Zhang, Chunyue; Xu, Jinliang; Gao, Li

doi:10.1007/s11666-020-01030-9

Cited by 28 publications

(14 citation statements)

References 18 publications

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“…These properties can be further increased by adding new alloying elements, which form more stable oxides than Cr, Mo and Fe. layers before the pitting initiate [39]. Here, from the above discussion and comparing our previous investigation on plasma spray, we concluded the fabrication technique and optimization of spraying parameters boost the chemo-mechanical properties of the coatings.…”

Section: Electrochemical Studies Of Coated Layersupporting

confidence: 64%

“…Hence it was disclosed that under long term electrochemical analysis, no degradations occur in amorphous layer. Furthermore, the passive layer majorly consists of Fe, Mo and Cr oxide layers before the pitting initiate [39]. Here, from the above discussion and comparing our previous investigation on plasma spray, we concluded the fabrication technique and optimization of spraying parameters boost the chemo-mechanical properties of the coatings.…”

Section: Electrochemical Studies Of Coated Layersupporting

confidence: 55%

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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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Section: Electrochemical Studies Of Coated Layersupporting

confidence: 64%

Section: Electrochemical Studies Of Coated Layersupporting

confidence: 55%

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

Iqbal

Moskal

et al. 2022

Molecules

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“…For example, Fe 45 Cr 16 Mo 18 C 18 B 5 amorphous coatings were deposited on the mild substrate by plasma spraying, and their corrosion in 3.5 wt.% NaCl solution was compared with those of the substrate and 316 stainless steel. The obtained results imply that the coating has a promising prospect for industrial applications [27]. Moreover, it has been reported that a WC-CoCr/35 wt.% amorphous Fe-based alloy composite coating was prepared by high velocity oxygen fuel spray, and, in comparison with the WC-CoCr coating, the WC-CoCr/35 wt.% amorphous Fe-based alloy composite coating exhibits excellent thermal stability and better corrosion resistance [28].…”

Section: Introductionmentioning

confidence: 87%

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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“…The corrosion process of polymerlaminated steel in NaCl solution was somewhat similar to that of Fe 45 Cr 16 Mo 16 C 18 B 5 amorphous coatings in NaCl solution. 37 In a word, the corrosion of polymer-laminated steel included film corrosion and TFS corrosion.…”

Section: Mechanism Of the Corrosion Of Polymer-laminated Steelmentioning

confidence: 99%

Corrosion behaviour of polymer‐laminated steel in sodium chloride solution

Hong

Chen

et al. 2022

Packag Technol Sci

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The corrosion behaviour of polymer‐laminated steel in sodium chloride (NaCl) solution was studied. The iron migration amount was determined by inductively coupled plasma optical emission spectrometry (ICP‐OES). The result indicated that the migration of iron increased with time and a turning point occurred in 3 wt.% NaCl solution when polymer‐laminated steel cans containing NaCl solution soaked at different temperatures for 240 h. In addition, the changes of the PET/TiO2 composite film after soaking were analysed by the differential scanning calorimeter (DSC), scanning electron microscope (SEM) and energy dispersive spectrometer (EDS). The crystallinity of the composite film decreased, the porosity increased and the surface cracks formed. Moreover, the composition and morphology of the corrosion products were characterized by the X‐ray diffraction (XRD), SEM and EDS, indicating that the corrosion products were Fe3O4 and Fe2O3. Based on the results, a schematic diagram of the corrosion mechanism of polymer‐laminated steel cans was given.

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Corrosion Mechanism of Plasma-Sprayed Fe-Based Amorphous Coatings with High Corrosion Resistance

Cited by 28 publications

References 18 publications

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

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

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

Corrosion behaviour of polymer‐laminated steel in sodium chloride solution

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