Materials
·
2023
·Vol. 16
·期 16
·5511
·
IF 3.4
Anyu Yue,Yong Cao,Yi Zhang,Shenggang Zhou
The Mg-Li alloy stands as the lightest metallic structural material known to date, finding a wide range of applications. However, its development has been hindered by its susceptibility to oxidation and corrosion. In this study, we aimed to address this issue by employing electroless deposition to form a protective zinc layer on the surface of a magnesium–lithium alloy. The optimization of the zinc layer was achieved through varying parameters such as the zinc dipping time (1~10 min), temperature (20~70 °C), and zinc content (20~200 g/L). Surface characterization was performed using scanning electron microscopy (SEM) and X-ray diffraction, while electrochemical tests and scratch tests were conducted to evaluate corrosion resistance and coating adhesion. The results demonstrated the successful formation of a uniform and dense pure zinc layer on the surface of the Mg-Li alloy when the zinc-dipping time was set at 5 min, the temperature was at 30 °C, and the zinc content was at 50 g/L. Under these conditions, the corrosion potential of the Mg-Li alloy experienced the greatest positive shift, reaching as high as −1.38 V. Additionally, the corrosion current was minimized, measuring at 2.78 × 10−6A/cm2. Furthermore, the maximum arc tolerance radius was observed. Consequently, the electroless deposition of zinc onto Mg-Li alloys significantly improves their corrosion resistance and bonding, opening up new prospects for the application of zinc-plated Mg-Li alloys.Keywords:Mg-Li alloy;electroless-deposited;zinc coating;corrosion resistance
研究领域:
材料科学
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腐蚀工程
·
表面工程
✓ 已验证
DOI
PubMed
高影响因子
VACUUM
·
2024
·
IF 3.8
Xingtao Cheng,Yi He,Siming Yan,Ruxia Song,Zhiyuan Li,Liping Yan,Hongjie Li,Kaijun Wei,Qing Yuan,Shijun Xu
In this study, a pulsed electrodeposition approach was used to create a Ni-Cu/ZrB 2 composite coating on the surface of J55 steel. Ni-Cu/ZrB 2 composite coatings with different material additions were prepared, and the surface morphology, grain size, microhardness and wear and corrosion resistance were investigated. The results confirmed that the embedding of ZrB 2 in the Ni-Cu coating can refine the grains and make the coating surface denser. Furthermore, ZrB 2 can effectively increase the wear resistance and corrosion resistance of the coating; the Ni-Cu/ZrB 2 (1.0 g/L) composite coating reflects this by having the shallowest and narrowest wear cross-section as well as the lowest average friction coefficient (0.537). Additionally, the composite coating has the highest impedance modulus, reaching 83.60 kΩ/cm 2 . The composite coating improved corrosion resistance by 63.1 % compared to the pure sample. The enhancement in the coating's corrosion resistance can be attributed to three factors. Firstly, the addition of zirconium diborate refines the coating grain and changes the corrosion type from pitting corrosion to homogeneous corrosion. Secondly, zirconium diborate forms a physical barrier against corrosive ions. Lastly, the formation of the oxide layer on the coating during the process of corrosion, also enhances the material's resistance to corrosion.
研究领域:
材料科学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
Coatings
·
2018
·Vol. 8
·期 11
·390
·
IF 2.35
Qian Zhao,Tiantian Tang,Fang Wang
The development of a self-cleaning and corrosion resistant superhydrophobic coating for aluminum alloy surfaces that is durable in aggressive conditions has attracted great interest in materials science. In the present study, a superphydrophobic film was fabricated on an AA5052 aluminum alloy surface by the electrodeposition of Ni–Co alloy coating, followed by modification with 6-(N-allyl-1,1,2,2-tetrahydro-perfluorodecyl) amino-1,3,5-triazine-2,4-dithiol monosodium (AF17N). The surface morphology and characteristics of the composite coatings were investigated by means of scanning electron microscopy (SEM), energy dispersive X-ray spectrum (EDS), atomic force microscope (AFM) and contact angle (CA). The corrosion resistance of the coatings was assessed by electrochemical tests. The results showed that the surface exhibited excellent superhydrophobicity and self-cleaning performance with a contact angle maintained at 160° after exposed to the atmosphere for 240 days. Moreover, the superhydrophobic coatings significantly improved the corrosion resistant performance of AA5052 aluminum alloy substrate in 3.5 wt.% NaCl solution.Keywords:superhydrophobic surface;aluminum alloy;corrosion resistance;self-cleaning
研究领域:
材料科学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Fei Xue,Yutong Hou,Qiushi Li,Jihui Wang,Wenbin Hu
The corrosion-resistant behavior of the films was investigated in conjunction with the principle of resistive switching, and the films were subjected to continuous repair by modulating the oxygen vacancies. Zn 1- x Ce x O resistive switching film was prepared on SS304 surface by one-step hydrothermal method combined with the following heat treatment. The surface morphology, crystal structure, composition, oxygen vacancy concentration and semiconductor type of Zn 1- x Ce x O film were determined. The corrosion resistance and resistive switching properties of Zn 1- x Ce x O films were measured by electrochemical tests, immersion experiment and resistive switching experiment. The oxygen vacancy formation energy, surface adsorption energy and diffusion energy barrier energy of Zn 1- x Ce x O film were calculated by density functional theory (DFT). The experimental results show that with the increasing of Ce doping concentration, the nano-flowers on the surface of Zn 1- x Ce x O film become sparse, and the lattice constants a and c increase, the oxygen vacancy concentration of the film gradually increases, while the corrosion resistance of Zn 1- x Ce x O film decreases. The corrosion resistance of Zn 0.98 C e0.02 O film is the best (99.36%). During resistive switching process, the polarization treatment will promote the conversion of Ce 3+ to Ce 4+ in film, reduce the formation energy and diffusion barrier of oxygen vacancies, and thus promote the formation and migration of oxygen vacancies in film and then convert the film into a low resistance state. Zn 1- x Ce x O films can stably switching between high and low resistance states, maintaining excellent corrosion resistance, which is of great significance for expanding the application of resistance switching principles in the field of corrosion protection.
研究领域:
材料科学
·
腐蚀与防护
·
理论计算
✓ 已验证
产品关联
DOI
高影响因子
Coatings
·
2019
·Vol. 9
·期 12
·867
·
IF 2.33
Diping Zeng,Zhiyi Liu,Song Bai,Jian Wang
In the present work, a coating was prepared on an Al alloy substrate by plasma electrolytic oxidation (PEO). To seal the micro defects in the oxide scale, a siloxane layer was prepared on the PEO coating by sol gel method. The polymer sealant was synthesized from Tetraethoxy silane (TEOS) and methacryloxy propyl trimethoxyl silane (MPTES). The chemical structure of the polymer was studied by Fourier transform infrared spectroscopy (FTIR). The morphologies and microstructure of the PEO coating and siloxane coating were investigated by scanning electron microscopy (SEM). The results showed that siloxane formed a continuous layer on the surface and effectively sealed the micro defects. The corrosion behavior of the coatings in three different corrosion solutions (NaCl, HCl, and NaOH) was examined by electrochemical impedance spectroscopy and potentiodynamic polarization. The corrosion resistance of the sealed coatings was superior to that of the PEO coating because it prevented the penetration of corrosive solutions. The corrosion resistance of the sealed coatings was found to decrease with increasing electrolyte concentration. The work demonstrated that siloxane sealing may greatly enhance the corrosion resistance of Al-based PEO coating in acidic, neutral, and alkaline environments.Keywords:PEO coating;silane polymer;sealing treatment;corrosion resistance
研究领域:
材料科学
·
腐蚀工程
·
表面工程
✓ 已验证
DOI
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-13
·
IF 15.7
Liu Shaojia,Deng Jingjing,Zhao Hewei,Wang Tianbai,Lu Junfeng,Ding Baosen,Guo Tianqi,Ritchie Robert O.,Guo Lin
Stiffness-damping balance, high specific mechanical performance, and corrosion resistance are demanded for metals. Here, we developed an enamel-inspired ceramic (EIC) coating strategy involving hydrothermal growth of a tooth enamel-like ZrO₂ nanorods on Zr foil and amorphous ZrO₂ intergranular phase formation via controlled hydrolysis. The EIC coated Zr foil (Zr-EIC) achieved a high viscoelastic figure of merit (4.6 GPa); as well as excellent specific stiffness and hardness owing to the lightweight of ceramics, surpassing the values of Zr and previously reported Zr-based alloys or Zr-based composites. This was due to the vertically oriented stiff nanorods and unique energy dissipation derived from deformation at the crystalline/amorphous interfaces. It demonstrated exceptional NaCl corrosion resistance. This approach showed universality across Ti, Zn, and Cu substrates, enhancing both mechanical properties and corrosion resistance. By constructing an enamel-like hierarchical structure on the metal surface, the strategy overcomes traditional metal limitations without causing an increase in density.
研究领域:
材料科学
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表面工程
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纳米技术
·
金属学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Acta Metallurgica Sinica-English Letters
·
2024
·
IF 2.9
Zeng Yanwei,Xu Peng,Liu Guoqiang,Wang Tianguan,Lei Bing,Feng Zhiyuan,Zhang Ping,Meng Guozhe
Chloride-induced corrosion of steel reinforcement is the key factor leading to the degradation of reinforced concrete building durability. Improving the corrosion resistance of oxide scale of rebar has always been a research hotspot in the field of civil engineering materials. A ZIF-8 modified Ce–Sol–gel (ZCS) film was prepared on oxide scale of plain steel rebars by sol–gel method. It is observed that the | Z | 0.01 Hz value of the ZCS film reached 320 kΩ cm 2 , which is about 29 times higher than that of blank rebar in simulated concrete pore (SCP) solution with 0.1 M NaCl. Then, they were inserted into mortar block and curing them in a curing box at T = 20 ± 2 °C and RH = 95 ± 2% for 28 days. Subsequently, these samples were subject to electrochemical impedance spectroscopy in 3.5 wt% NaCl. The | Z | 0.01 Hz value of the rebar with the ZCS film was six times higher than that of the blank rebar after immersing for 20 days, resulting in an overall increase in corrosion resistance for rebar. The results indicated that the modification by ZIF-8 could reduce the porosity of Ce–sol–gel (CS) film and improved the “labyrinth effect” of the film. Additionally, the negative charge on the surface of ZIF-8 in alkaline condition increased the repulsion effect with Cl − , significantly reducing the sensitivity of rebar to Cl − .
研究领域:
土木工程材料
·
防腐蚀技术
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Shuangshuang Wang,Yonghang Yu,Chen Zhou,Shengyang Yang
This study addresses the challenges of mass production and extensive application of superhydrophobic coatings, focusing on adhesion and durability. We propose an innovative solution utilizing screen printing and UV curing techniques, offering a simple, replicable, and scalable process. Our two-step strategy involves applying a polyurethane diacrylate (PUA-2) adhesion layer to the glass surface through screen printing and UV curing to ensure superior adhesion. Next, a polyurethane hexaacrylate (PUA-6) based formulation is applied over the adhesion layer and subjected to light curing, resulting in excellent hydrophobicity, scratch resistance, and corrosion resistance. This method withstands a pullout force exceeding 5 MPa, achieving a water contact angle of 164.3° and a sliding angle of 1.6°. The coating maintains favorable superhydrophobicity after 80 rounds of sandpaper friction and demonstrates promising corrosion resistance in a 3.5 % NaCl solution. Notably, this approach streamlines large-scale production and delivers exceptional, well-defined performance, providing a promising avenue for widespread and sustainable applications of superhydrophobic coatings.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2023
·
IF 5.4
Runjia Liu,Yan Liu,Qiwen Yong,Zhi-Hui Xie,Liang Wu,Chuan-Jian Zhong
The long-term corrosion resistance of conventional micro-arc oxidation (MAO) coatings on magnesium alloy is limited by the inherent micro-scale pores. To address this issue, zeolitic imidazolate framework-8 (ZIF-8) and zinc gluconate (ZnG) loaded ZIF-8 (ZnG@ZIF-8) were synthesized and incorporated into the MAO coating. The electrochemical and immersion tests showed that the MAO composite coating doped with ZIF-8 and ZnG@ZIF-8 ((ZIF-8 + ZnG@ZIF-8)/MAO) displayed optimal corrosion resistance. The corrosion current density ( j corr ) of the pristine (ZIF-8 + ZnG@ZIF-8)/MAO composite coating (3.38 nA cm −2 ) is 63.3 times lower than that of the blank MAO coating (214 nA cm −2 ), indicating the significant enhancement in corrosion protection of the nanoparticle to the coatings. Even after 32 days of immersion in a 3.5 wt.% NaCl solution, the j corr of the former was as low as 87.3 nA cm −2 , much lower than that of the blank MAO coating (1710 nA cm −2 ). These findings provide new insights into the design of corrosion-resistant MAO composite on magnesium alloy surfaces via the incorporation of inhibitor-loaded ZIF-8 nanocontainers.
研究领域:
材料科学
·
表面工程
·
腐蚀防护
·
纳米技术
✓ 已验证
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2022
·
IF 7.968
Xilu Liu,Hui Li,Jianqiang Zhang,Lei Zhu,Xu Zhu,Shifan Yu,Jinwei Xue,Ran Wang,Shaopeng Gan,Baojun Wei,Qingzhong Xue
The complex composition of oilfield-produced water is easy to scratch or corrode the separation membrane because of the existence of solid micro-particles, corrosive acid and alkali, proposing higher requirements on the durability of the membrane. Herein, a durable self-healing stainless-steel mesh was fabricated by hydrothermal growth of Ni and Fe double hydroxide nanosheet structure and dip-coating of polydimethylsiloxane (PDMS). The coating of ultrathin PDMS on the top of the nanosheets excellently maintained roughness of surface, while the PDMS stored at the valleys of the nanosheets array acted as a supplementary source for continuous self-healing process. Therefore, the engineered mesh could self-heal its superhydrophobicity despite suffering from different scales of damage. Moreover, the prepared mesh exhibited reliable superhydrophobicity, mechanochemical durability, corrosion resistance and self-cleaning properties. Eventually, the mesh showed ultrafast flux (21,000 L m −2 h −1 ) and rejection rate (> 99.99%) for separating phenixin/water mixtures during 50 continuous cycles. In addition to low-viscosity oils, the engineered mesh could separate high-viscosity crude oil/water mixtures. Aiming at the practical problem that dirty oil containing solid micro-particles is difficult to separate, the three-phase separation performance of the mesh on oil/water/sand mixtures was studied. These features make the engineered mesh have great practical application potential in oilfield-produced water treatment .
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Jianmao Wu,Jiyuan Zhu
Nowadays, few works have been undertaken to explore the anti-corrosion coatings with tunable surface colors. In order to further expand the industrial application of magnesium alloy , a facile one-step hydrothermal method was applied to AZ91D magnesium alloy to obtain anti-corrosion coatings with diversified colors. The formation mechanism was discussed, and the corrosion resistance of the coating was assessed by electrochemical tests, immersion tests, and salt spray tests. The results show that different coating colors such as yellow, cyan, blue and red can be obtained by varying the type and concentration of reagents. The adhesion of the coating to the magnesium alloy substrate was great, and the corrosion current density of the sample with the best anti-corrosion effect was reduced by three orders of magnitude. This method has practical significance in promoting the development of surface coloring and industrial applications of magnesium alloys.
研究领域:
材料科学
·
腐蚀与防护
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2024
·Vol. 35
·期 20
·1-9
·
IF 2.8
Yan Caibo,Su Zhiwei,Zhao Zhuo,Zhou Yanwen
Leveraging the conductivity of In 2 O 3 and the wear resistance and anti-corrosion behaviour of SiO 2 and TiO 2 , In 2 O 3 , In 2 O 3 /SiO 2 and In 2 O 3 /TiO 2 films were prepared via magnetron sputtering to meet the transparency, conductivity, wear resistance and corrosion resistance requirements for external screens of wearable devices. The films exhibited excellent sheet resistance of 13–28 Ω·sq −1 , which fully met the conductivity criteria. Owing to the light interference effect, the average transmittance of the In 2 O 3 film (77%) was higher and lower than those of the In 2 O 3 /TiO 2 (69%) and In 2 O 3 /SiO 2 (83%) films, respectively. After soaking in sweat solutions for 48 h, the In 2 O 3 and In 2 O 3 /SiO 2 films maintained their optical and electrical properties and the In 2 O 3 /TiO 2 film was partially peeled off in the acid solution. The low transmittance and corrosion resistance of the In 2 O 3 /TiO 2 film were due to severe oxygen deficiency in the TiO 2 layer, indicated by the certain amount of Ti 2 O 3 and metal Ti in XPS. The wear failure time of the In 2 O 3 /SiO 2 film (42 h) was greater than those of the In 2 O 3 (30 h) and In 2 O 3 /TiO 2 (24 h) films because of its hard SiO 2 top layer. Based on the ‘parallel sheet resistance principle’, the resistivity of the double-layer films was mainly attributed to the conductive In 2 O 3 layers. The wear and corrosion resistances were ascribed to the top passive transparent layers, in which the SiO 2 layer showed its excellent optical and electrical performance stabilities before and after corrosion and wear resistance functions. With its commonly high transparency and conductivity as well as its high wear and corrosion resistances, the In 2 O 3 /SiO 2 film exhibits application potential for external screens of wearable devices.
研究领域:
材料科学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）