Creating high-performance bi-functional composite coatings on magnesium−8lithium alloy through electrochemical surface engineering with highly enhanced corrosion and wear protection

Li, Zhijun; Wang, Xuexia; Dong, Xiuli; Hu, Fenglian; Liu, Shuyi; Zhang, Mingyang; Yuan, Tongwei; Yu, Yanlong; Kuang, Qing; Ren, Qinghui; Wang, Jun; Jing, Xiaoyan

doi:10.1016/j.jallcom.2019.153341

Cited by 17 publications

(7 citation statements)

References 24 publications

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“…Known for its high hardness and excellent wear resistance, TiN particles enhance the coating's ability to withstand abrasive wear and mechanical stresses. The incorporation of TiN contributes to the overall durability of magnesium implants, particularly in load-bearing applications where wear resistance is crucial [192][193][194]. Si 3 N 4 is recognized for its exceptional toughness, high-temperature stability, and corrosion resistance.…”

Section: Wear Performance Of Peo Coatings With Particle Incorporationmentioning

confidence: 99%

Unveiling the Effect of Particle Incorporation in PEO Coatings on the Corrosion and Wear Performance of Magnesium Implants

Almajidi,

Ali,

Jameel

et al. 2023

Lubricants

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Magnesium has been a focal point of significant exploration in the biomedical engineering domain for many years due to its exceptional attributes, encompassing impressive specific strength, low density, excellent damping abilities, biodegradability, and the sought-after quality of biocompatibility. The primary drawback associated with magnesium-based implants is their susceptibility to corrosion and wear in physiological environments, which represents a significant limitation. Research findings have established that plasma electrolytic oxidation (PEO) induces substantial modifications in the surface characteristics and corrosion behavior of magnesium and its alloy counterparts. By subjecting the surface to high voltages, a porous ceramic coating is formed, resulting in not only altered surface properties and corrosion resistance, but also enhanced wear resistance. However, a drawback of the PEO process is that excessive pore formation and porosity within the shell could potentially undermine the coating’s corrosion and wear resistances. Altering the electrolyte conditions by introducing micro- and nano-particles can serve as a valuable approach to decrease coating porosity and enhance their ultimate characteristics. This paper evaluates the particle adhesion, composition, corrosion, and wear performances of particle-incorporated coatings applied to magnesium alloys through the PEO method.

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Section: Wear Performance Of Peo Coatings With Particle Incorporationmentioning

confidence: 99%

Unveiling the Effect of Particle Incorporation in PEO Coatings on the Corrosion and Wear Performance of Magnesium Implants

Almajidi,

Ali,

Jameel

et al. 2023

Lubricants

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“…Depending on the PEO parameters and thermodynamic stability of these ceramic oxides, they experience either inert [ 213 , 226 , 227 , 231 ] or reactive/partly reactive incorporation, resulting in the formation of new stable phases like Mg 2 Zr 5 O 12 , Mg 2 TiO 4 , Mg 2 SiO 4 , or MgAl 2 O 4 [ 212 , 219 , 220 , 225 , 228 , 230 , 231 ]. Improved corrosion performance can also be achieved by the addition of non-oxide particles such as SiC [ 234 , 235 ], TiC, NbC [ 236 ], WS 2 [ 237 ], MoS 2 [ 238 ], Si 3 N 4 [ 234 ], and TiN [ 239 , 240 , 241 ].…”

Section: Effect Of Energy Input and Electrolyte Composition On Coatin...mentioning

confidence: 99%

“…For instance, graphene oxide (GO) was successfully introduced into a PEO coating [ 242 , 243 , 244 ], reducing the number of micropores and improving the corrosion resistance due to the increased tortuosity of the electrolyte species diffusion pathway. Similarly, the addition of graphite [ 237 , 245 , 246 ], multi-walled carbon nanotubes (CNT) [ 247 , 248 ], or carbon spheres (CS) [ 249 ] into the electrolyte produced a coating densifying effect, thereby increasing the corrosion resistance while the CNT oxidized during PEO (new). However, the primary benefits of the incorporation of carbon-based particles are enhanced hardness, wear resistance, and heat dissipation [ 247 , 248 , 249 ].…”

Section: Effect Of Energy Input and Electrolyte Composition On Coatin...mentioning

confidence: 99%

Chromate-Free Corrosion Protection Strategies for Magnesium Alloys—A Review: Part II—PEO and Anodizing

et al. 2022

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Although hexavalent chromium-based protection systems are effective and their long-term performance is well understood, they can no longer be used due to their proven Cr(VI) toxicity and carcinogenic effect. The search for alternative protection technologies for Mg alloys has been going on for at least a couple of decades. However, surface treatment systems with equivalent efficacies to that of Cr(VI)-based ones have only begun to emerge much more recently. It is still proving challenging to find sufficiently protective replacements for Cr(VI) that do not give rise to safety concerns related to corrosion, especially in terms of fulfilling the requirements of the transportation industry. Additionally, in overcoming these obstacles, the advantages of newly introduced technologies have to include not only health safety but also need to be balanced against their added cost, as well as being environmentally friendly and simple to implement and maintain. Anodizing, especially when carried out above the breakdown potential (technology known as Plasma Electrolytic Oxidation (PEO)) is an electrochemical oxidation process which has been recognized as one of the most effective methods to significantly improve the corrosion resistance of Mg and its alloys by forming a protective ceramic-like layer on their surface that isolates the base material from aggressive environmental agents. Part II of this review summarizes developments in and future outlooks for Mg anodizing, including traditional chromium-based processes and newly developed chromium-free alternatives, such as PEO technology and the use of organic electrolytes. This work provides an overview of processing parameters such as electrolyte composition and additives, voltage/current regimes, and post-treatment sealing strategies that influence the corrosion performance of the coatings. This large variability of the fabrication conditions makes it possible to obtain Cr-free products that meet the industrial requirements for performance, as expected from traditional Cr-based technologies.

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“…On comparing WS 2 with MoS 2 in the formulation of corrosion-protective coatings on a Mg-Li alloy, Li et al [157] found that a more compact and hydrophobic coating was formed with WS 2 , to give significantly enhanced corrosion protection over an extended immersion time. Likewise, Prado and Virtanen [152] exploited the hydrophobic characteristics of MoS 2 to form a superhydrophobic metal matrix composite coating by adding MoS 2 particles to a copper matrix.…”

Section: Transition Metal Dichalcogenidesmentioning

confidence: 99%

Emerging Layered Materials and Their Applications in the Corrosion Protection of Metals and Alloys

et al. 2022

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Metals and alloys are essential in modern society, and are used in our daily activities. However, they are prone to corrosion, with the conversion of the metal/alloy to its more thermodynamically-favored oxide/hydroxide phase. These undesirable corrosion reactions can lead to the failure of metallic components. Consequently, corrosion-protective technologies are now more important than ever, as it is essential to reduce the waste of valuable resources. In this review, we consider the role of emerging 2D materials and layered materials in the development of a corrosion protection strategy. In particular, we focus on the materials beyond graphene, and consider the role of transition metal dichalcogenides, such as MoS2, MXenes, layered double hydroxides, hexagonal boron nitride and graphitic carbon nitride in the formulation of effective and protective films and coatings. Following a short introduction to the synthesis and exfoliation of the layered materials, their role in corrosion protection is described and discussed. Finally, we discuss the future applications of these 2D materials in corrosion protection.

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Creating high-performance bi-functional composite coatings on magnesium−8lithium alloy through electrochemical surface engineering with highly enhanced corrosion and wear protection

Cited by 17 publications

References 24 publications

Unveiling the Effect of Particle Incorporation in PEO Coatings on the Corrosion and Wear Performance of Magnesium Implants

Unveiling the Effect of Particle Incorporation in PEO Coatings on the Corrosion and Wear Performance of Magnesium Implants

Chromate-Free Corrosion Protection Strategies for Magnesium Alloys—A Review: Part II—PEO and Anodizing

Emerging Layered Materials and Their Applications in the Corrosion Protection of Metals and Alloys

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