Influence of embedded reduced graphene oxide on the corrosion-wear performance of cold sprayed Zn-rGO/Al coating in NaCl solution

Wu, Huishu; Shen, Gengzhe; Li, Runxia; Zhang, Liuyan; Jie, Xiaohua; Liu, Gang

doi:10.1016/j.surfcoat.2021.127856

Cited by 9 publications

(3 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Using compressed air as the driving gas for the particles, the temperature and pressure of the air were set as 400 • C and 0.8 MPa, respectively. The surface optical images and cross-section SEM images of the obtained Zn-x wt.%G/Al coatings are depicted in our previous work [25].…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Balanced Anti-Corrosion Action of Reduced Graphene Oxide in Zn-Al Coating during Medium-Term Exposure to NaCl Solution

Shi,

Wu,

Zhang

et al. 2023

Coatings

Self Cite

View full text Add to dashboard Cite

Considering the electronegativity and shielding anti-sepsis characteristic of reduced graphene oxide (G), we design a Zn-Al coating with embedded G (Zn-G/Al) on low-carbon steel using the low-pressure cold spray (LPCS) method. In this method, G-coated Al powders (G/Al) prepared using in situ reduction and Zn powders were mixed as a raw material for spraying. Embedding G could boost the cathodic protection performance of Zn-Al (70 wt.% zinc and 30 wt.% aluminum) coating, as has been confirmed in previous work. In this work, the microstructure, composition and electrochemical parameters of Zn-G/Al coating during full immersion were measured to investigate G’s effect on the corrosion protection properties of the Zn-Al coating. The test results showed that embedded G could facilitate the generation of many corrosion products and pile on the coating surface to form a corrosion product film during full immersion. The corrosion product film on the Zn-0.2 wt.%G/Al coating surface demonstrated an excellent protective property, which reflects the fact that the Ecorr and icorr values for Zn-0.2 wt.%G/Al after 20d immersion (Ecorr = −1.143 Vvs.SCE, icorr= 49.96 μA/cm2) were lower than the initial value (Ecorr = −1.299 Vvs.SCE, icorr = 82.16 μA/cm2). It can be concluded that adding an appropriate amount of G to the coating can balance the cathodic protection and shielding property of the coating. The equilibrium mechanism was also analyzed in this work.

show abstract

Section: Methodsmentioning

confidence: 99%

“…We deposited a Zn-G/Al composite coating on low-carbon steel using LPCS [24,25]. Using G-coated Al powders prepared by chemical reduction as a feedstock, G was successfully embedded in the interface of Zn and Al.…”

Section: Introductionmentioning

confidence: 99%

Balanced Anti-Corrosion Action of Reduced Graphene Oxide in Zn-Al Coating during Medium-Term Exposure to NaCl Solution

Shi,

Wu,

Zhang

et al. 2023

Coatings

Self Cite

View full text Add to dashboard Cite

show abstract

“…The strongest material known is graphene, which has a stable structure, high toughness, large specific surface area, and special lamellar structure of multilayer graphene with excellent self-lubricating properties [12,13]. It is due to the excellent physical and chemical properties of graphene that it has been used in semiconductors [14,15], energy [16,17], functional coating [18], composite materials [19], aerospace [20], and other fields [21,22].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Tribological Properties of Graphene-Based Coatings on Tungsten Carbide

Liu

Ren

et al. 2022

Coatings

View full text Add to dashboard Cite

The preparation technology of graphene-based coatings on cobalt-based cemented carbides and the friction properties of graphene-based coatings were researched. Based on cooling rate, growth temperature, and methane flow rate, Raman spectroscopy was used to evaluate the influence of chemical vapor deposition (CVD) on graphene-based coatings. The results show that at the growth temperature of 1000 °C, the cooling rate of 15 °C/min and methane flow rate of 10 sccm are more favorable for the growth of pure graphene coating with fewer layers on a cemented carbide surface. As methane flow boosts, the number of graphene layers increases and amorphous carbon is generated. The resulting tribological properties demonstrate that the friction coefficient of graphene-based coatings decreases as the friction load increases. The above results indicate that the graphene-based coating on a cemented carbide surface can be prepared by regulating its composition and defects through technological parameters, and it is viable to use graphene-based coating as anti-wear coating for cutting tools. The results provide a reference for the preparation and properties of cemented carbide surface graphene.

show abstract

Corrosion Resistance of a Magnesium Alloy Surface with a Superhydrophobic Oxidation Coating

Wang,

Liu

2024

ChemistrySelect

View full text Add to dashboard Cite

In view of the importance of metal coatings, this study addresses the ion concentration of the anti‐corrosive coating's immersion solution. The physical properties of the coating surface, such as molecular characteristics, smoothness, and structural strength, were changed by adding nano‐SiO2 in the immersion solution to formulate the best scheme for anti‐corrosive performance. The composite coating was prepared on the surface of AZ31B magnesium alloy by electroless plating. Besides, the surface coating based on AZ31B substrate has high‐quality corrosion resistance to different types of contaminated media. The experimental results demonstrate that the nanocomposite coating can form an ultrafine particle‐filling effect on the metal surface, which is lower than the drag force of the conventional metal surface. Considering the slip velocity gradient in the contact coating area, we reduce the shear stress and drag force, verifying the nanocomposite coating's effect on reducing the reaction force. The contact angle of water droplets in the composite coating is greater than 158.7°. The study finally verifies that the prepared coating has good self‐cleaning potential which can prevent the corrosion of different polluted media.

show abstract

Influence of embedded reduced graphene oxide on the corrosion-wear performance of cold sprayed Zn-rGO/Al coating in NaCl solution

Cited by 9 publications

References 30 publications

Balanced Anti-Corrosion Action of Reduced Graphene Oxide in Zn-Al Coating during Medium-Term Exposure to NaCl Solution

Balanced Anti-Corrosion Action of Reduced Graphene Oxide in Zn-Al Coating during Medium-Term Exposure to NaCl Solution

Preparation and Tribological Properties of Graphene-Based Coatings on Tungsten Carbide

Corrosion Resistance of a Magnesium Alloy Surface with a Superhydrophobic Oxidation Coating

Contact Info

Product

Resources

About