Corrosion behavior of carbon film coated magnesium alloy with electroless plating nickel interlayer

Mao, Yan; Li, Zhuguo; Feng, Kai; Guo, Xingwu; Zhou, Zhifeng; Wu, Yixiong

doi:10.1016/j.jmatprotec.2014.12.003

Cited by 18 publications

(4 citation statements)

References 14 publications

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“…Very often, the microstructural and physical characteristics of the alloy prevent the use the fusion welding repair techniques (i.e., tungsten inert gas welding (TIG), laser, electron beam, or an equivalent process) [7][8][9][10][11][12][13]. For example, the fusion welding repair processes of components that are made of Al alloy or Ni superalloys are not suitable because these alloys are particularly prone to cracks during the solidification period, both in the welded (i.e., hot cracking) and in the base metal (i.e., liquation cracking) [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Advancements in Electrospark Deposition (ESD) Technique: A Short Review

Barile¹,

Casavola²,

Pappalettera³

et al. 2022

Coatings

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The need to use components with improved surface characteristics in relation to severe operating conditions, together with the aim of cost reduction associated with the replacement of damaged components, has led to an increasing use of coatings and repairing processes. The most common deposition processes are generally characterized by high equipment costs and, sometimes, by long deposition time. Furthermore, some repair technologies, especially those characterized by high heat input, are not suitable for alloys used in aerospace applications due to the degradation of their mechanical characteristics. In the last decades, a novel eco-friendly method capable of overcoming the limits set out above emerged: the electrospark deposition (ESD) technology. Thanks to its efficiency, simplicity, cost-effectiveness, and low heat input, this technology has proved to be suitable both for improving surface properties, such as thermo and wear resistance, higher hardness and corrosion resistance, and for the repair of high-value components. The aim of this review is to describe in detail some aspects of the ESD technique to understand the ESD processing preparation of alloys normally considered difficult to weld by traditional processes and to give some important clues to the readers to contribute to the defect-free repair of damaged areas and coatings deposition.

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Section: Introductionmentioning

confidence: 99%

Advancements in Electrospark Deposition (ESD) Technique: A Short Review

Barile¹,

Casavola²,

Pappalettera³

et al. 2022

Coatings

View full text Add to dashboard Cite

show abstract

“…However, its application in the industry is limited to a certain extent due to poor corrosion resistance [5]. Surface treatments such as anodization [6][7][8], electroless plating nickel [9,10], organic coating [11,12], and electrodeposition [13][14][15] are frequently applied to deal with the problems. One of the promising surface treatment methods is electrodeposition.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Nucleation and Growth Mechanism of Aluminum on AZ31 Magnesium Alloys

Zhang

et al. 2021

Coatings

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In this study, the nucleation and growth kinetics behavior of aluminum (Al) were investigated in the Choline-chloride (ChCl)-urea deep eutectic solvent (DES) ionic liquids. The studies of cyclic voltammetric and chronoamperometry demonstrated that the electrodeposition process of Al was controlled by three-dimensional progressive nucleation and instantaneous nucleation. And the growth of nuclei is a diffusion-controlled process. The diffusion coefficient of Al ions was calculated at 343 K, that is, 1.773 × 10−10 cm2/s. The Al coating was obtained on the surface of the AZ31 magnesium alloy electrode under appropriate conditions. According to the surface morphology of the Al film, it could be inferred that the theoretical deposit thickness is similar to the actual thickness, and the apparent diffusion rate of Al ions is slower than the diffusion coefficient in the electrolytes. So, in the later deposition, lamellar Al along the diffusion direction were formed, and lamellar depleted Al zones existed around the big grain Al-rich region.

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“…At present, to expand the industrial applications of these alloys, it is necessary and efficient to apply multiple surface modification techniques to alter their surface properties. There are multiple advance surface modification techniques which have been adopted by number of researchers to improve the surface properties of magnesium alloys, such as physical vapor deposition (PVD) [6,7], chemical vapor deposition (CVD) [8], electroplating [9], electroless plating [10], diffusion treatment [11], high-velocity oxy fuel thermal spray [12][13][14], cold spray [15] and many others. But most of the surface modification techniques possess poor bond strength ratio, which ultimately reduces its performance in aggressive and harsh environments, while the efficiency for coating preparation is relatively low as well.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Tribological Properties of LA43M Magnesium Alloy by Ni60 Coating via Ultra-High-Speed Laser Cladding

et al. 2020

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Laser modification techniques have been widely adopted in the field of surface engineering. Among these modified techniques, ultra-high-speed laser cladding is trending most nowadays to fabricate wear-resistant surfaces. The main purpose of this research is to provide a detailed insight of ultra-high-speed laser cladding of hard Ni60 alloy on LA43M magnesium alloy to enhance its surface mechanical properties. Multiple processing parameters were investigated to obtain the optimal result. The synthesized coating was studied microstructurally by field emission scanning electron microscopy (FESEM) equipped with an energy dispersive spectrometer (EDS) and X-ray diffraction (XRD). The microhardness and wear resistance of the Ni60 coating were analyzed under Vickers hardness and pin on disc tribometer respectively. The obtained results show that the dense Ni60 coating was fabricated with a thickness of 300 μm. No cracks and porosities were detected in cross-sectional morphology. The Ni60 coating was mainly composed of γ-Ni and hard phases (chromium carbides and borides). The average microhardness of coating was recorded as 948 HV0.3, which is approximately eight times higher than that of the substrate. Meanwhile, the Ni60 coating exhibited better wear resistance than the substrate, which was validated upon the wear loss and wear mechanism. The wear loss recorded for the substrate was 6.5 times higher than that of the coating. The main wear mechanism in the Ni60 coating was adhesive while the substrate showed abrasive characteristics.

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Corrosion behavior of carbon film coated magnesium alloy with electroless plating nickel interlayer

Cited by 18 publications

References 14 publications

Advancements in Electrospark Deposition (ESD) Technique: A Short Review

Advancements in Electrospark Deposition (ESD) Technique: A Short Review

Electrochemical Nucleation and Growth Mechanism of Aluminum on AZ31 Magnesium Alloys

Enhanced Tribological Properties of LA43M Magnesium Alloy by Ni60 Coating via Ultra-High-Speed Laser Cladding

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