Effects of Substitution of Fe by Mischmetal on Formation and Properties of Arc-Sprayed AlSi-Based Amorphous Coating

Liu, Qi; Cheng, Jiangbo; Wang, Baolei; Liang, Xiubing

doi:10.1007/s11666-018-0740-0

Cited by 6 publications

(7 citation statements)

References 24 publications

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“…The details of alloy powders were available in Ref. [6]. Q235 steel plates (50 mm × 50 mm × 6 mm) were used as substrate.…”

Section: Methodsmentioning

confidence: 99%

“…At last, after the most active metal cations were consumed, the coating still acts as a physical barrier to Q235 substrate for blocking the corrosive medium (Figure 11(d)). The coating has prominent corrosion resistance because of its amorphous structure, relatively low porosity and sufficiently dense microstructure [6]. The amorphous structure has no crystalline defects, such as grain boundaries, precipitates and segregations, hence it is less prone to form corrosion sites in Cl − -containing solution.…”

Section: Long-term Corrosion Behaviour Of the Coatingmentioning

confidence: 99%

“…However, their relatively poor glass-forming ability (GFA) [4] and very high cooling rates to avoid crystallization during solidification limited Al-based amorphous alloys applied as materials for engineering structures. To solve this issue, thermal spraying technology has come into sight owning to rapid cooling rate (>10 5 K s −1 ) [5][6][7], which is available for preparing large-scale amorphous coatings.…”

Section: Introductionmentioning

confidence: 99%

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Corrosion behaviours of arc-sprayed AlSi-based amorphous/nanocrystalline coating

Liu

Cheng

Zhang

et al. 2020

Surface Engineering

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The aim of this article is to investigate the corrosion behaviours of arc-sprayed AlSiFeNiRE amorphous/nanocrystalline coating under different solution temperatures and different solution flow velocities. All tests were measured by CHI660E electrochemical workstation. The microstructure of the coating was characterized by scanning electron microscope (SEM) and the phase structure of the coating was examined using an X-ray diffraction (XRD) appliance. The morphologies and compositions of the coatings after immersion were analysed by SEM equipped with energy-dispersive spectrometer (EDS). The results show that the corrosion resistance of the coating increases first and then decreases with the prolonging of immersion time in long-term immersion. When the immersion reaches 10 days, the coating displays the lowest corrosion rate. With increasing solution temperature, the corrosion resistance of the coating decreases at first and then increases. The corrosion resistance of the coating decreases gradually as a function of the flow velocity.

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“…The details of alloy powders were available in Ref. [6]. Q235 steel plates (50 mm × 50 mm × 6 mm) were used as substrate.…”

Section: Methodsmentioning

confidence: 99%

Section: Long-term Corrosion Behaviour Of the Coatingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Corrosion behaviours of arc-sprayed AlSi-based amorphous/nanocrystalline coating

Liu

Cheng

Zhang

et al. 2020

Surface Engineering

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“…42 The amorphous content of the FeBSiNb coating prepared after that was more > 80%, the coating adhesion was good, the structure was dense, and the porosity was 1.2%. 43 For Al-based amorphous nanocrystalline coatings, the research group used arc spraying to prepare Al-based amorphous coatings of various alloy systems, including AlNiMmFe, 45 AlNiYCo, 46 AlFeSi, 47 AlFeSiMm 48 and AlNiTi 49 and so on. Among them, the AlFeSi and AlNiTi amorphous coatings were dense, and the interface between the coating and the substrate was very closely bonded.…”

Section: Arc Sprayingmentioning

confidence: 99%

“…Therefore, reports on Al-based amorphous coatings are gradually increasing. According to the existing research, there are mainly three types of Al-based amorphous coatings: (1) Al-LTM, (2) Al-LTM-RE (RE, rare metals such as Y, Sc or lanthanides) and (3) Al-LTM-M. 15 Cheng et al prepared AlFeSiMm 48 and AlFeSi 62 amorphous coatings by arc spraying. The coatings were dense, and the porosity was 2.3% and 2%, respectively.…”

Section: Al-based Amorphous Coatingmentioning

confidence: 99%

Research Progress and Development Trend of Amorphous and Nanocrystalline Composite Coatings: A Review

Zhang¹,

Yuan

Jing³

et al. 2022

JOM

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Compared with crystal alloy, amorphous alloy features atomic arrangement of long-range disorder and near-range order; it has no crystal boundary, dislocation and other defects that can easily promote corrosion initiation and development. With good mechanical properties, wear resistance and corrosion resistance properties, today amorphous alloys have become a research hotspot worldwide. However, the amorphous formation ability is limited, which restricts large-scale preparation, popularization and application of three-dimensional block materials. Due to the technical characteristics of rapid solidification, laser cladding technology and spraying technology are beneficial to the efficient preparation and transformation of amorphous alloy in the form of coating materials. According to the current research progress of amorphous and nanocrystalline composite coatings, this article introduces the typical amorphous and nanocrystalline composite coating alloy systems, summarizes the research progress of preparing amorphous and nanocrystalline composite coatings and expounds the research situation of the main mechanical properties, wear resistance and corrosion resistance of amorphous and nanocrystalline composite coatings. Finally, the application scope of amorphous and nanocrystalline composite coatings is reviewed, and the current problems and future development trends in the study of amorphous and nanocrystalline composite coating are indicated.Zhibin Zhang and Jiachi Yuan have contributed equally to this work.

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Microstructure and Wear Resistance of Amorphous FeMnCrNiBNb Coating Prepared by High-Speed Arc Spraying

et al. 2023

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Effects of Substitution of Fe by Mischmetal on Formation and Properties of Arc-Sprayed AlSi-Based Amorphous Coating

Cited by 6 publications

References 24 publications

Corrosion behaviours of arc-sprayed AlSi-based amorphous/nanocrystalline coating

Corrosion behaviours of arc-sprayed AlSi-based amorphous/nanocrystalline coating

Research Progress and Development Trend of Amorphous and Nanocrystalline Composite Coatings: A Review

Microstructure and Wear Resistance of Amorphous FeMnCrNiBNb Coating Prepared by High-Speed Arc Spraying

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