ELECTROCHIMICA ACTA
·
2019
·
IF 5.383
Jingchun Liu,Kieran P. Dolan,Junxia Liu,Jianqiang Wang,Dewu Long
Dense carbon film coated on 316L stainless steel was achieved by electrochemical deposition in molten fluoride salt (LiF-NaF-KF 46.5–11.5-42.0 mol%, FLiNaK, m.p. 727K) using C 2 2- as the C source. The C 2 2- source was in-situ synthesized in the high temperature eutectic salt by adding mixed Ca/C powders. Results of cyclic voltammetry confirmed the formation of CaC 2 and the obtained C coated 316L samples demonstrate satisfactory electrochemical deposition via synthesized C 2 2- . SEM images show that a dense and tunable thickness of C film can be fabricated in this FLiNaK–Ca/C–CaC 2 system in the range of 2.0–6.0 μm by optimizing the deposition conditions such as concentrations of Ca/C, deposition potentials, temperatures and times. Characterizations of the as-prepared C film by Raman spectroscopy imply that deposited films are predominantly composed of low degree crystallization structures. The anti-corrosion behavior of this coated material was verified by potentiodynamic polarization . Compared to bare 316L material, corrosion rate suppression by a factor of more than 16 was determined for a 4.0 μm C coated 316L sample in 0.1M HCl+0.5M NaCl solution, indicating the coating provides extremely high anti-corrosion performance.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2019
·Vol. 30
·期 16
·15267-15276
·
IF 2.195
Zhang Qingji,Jing Jiangping,Chen Zhuoyuan,Sun Mengmeng,Li Jiarun,Li Yan,Xu Likun
g-C 3 N 4 is a promising material for the application in the area of photoelectrochemical cathodic protection. However, it suffers from limited light absorption and lower charge separation efficiency. In this work, a N defects and C deposition co-modified g-C 3 N 4 , C–g-C 3 N x , was prepared by NaOH-assisted sintering and ethanol-assisted hydrothermal treatment. The presence of N defects and C deposition was verified by the XRD, SEM and XPS tests. The N defects changed the band structure of g-C 3 N 4 by lowering down the conduction band position, therefore widening the light absorption range of g-C 3 N 4 . In addition, the N defects and C deposition co-modification promotes the charge transfer process of g-C 3 N 4 , leading to increased separation efficiency of the photogenerated charge carriers. Therefore, C–g-C 3 N x shows enhanced photoelectrochemical cathodic protection performance for the coupled 316L stainless steel. It can provide a photoinduced potential drop of 120 mV and a photoinduced current density of 9.1 μA cm −2 , which is three times that of pristine g-C 3 N 4 .
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Materials Today Communications
·
2025
·
IF 4.5
Da Bian,Junnai Wang,Jie Guo,Xinjian Cao,Shanhua Qian,Jun Yang,Weimin Liu
Digital light processing (DLP) has been widely utilized in ceramic additive manufacturing, while research on its application for fabricating metallic materials remains in the initial stages. In this paper, the geometric accuracy, mechanical and tribocorrosion properties of AISI 316 L prepared by DLP (DLP-316L) are systematically evaluated. DLP technology exhibits high forming accuracy in additive manufacturing of metal parts, with dimensional errors controllable within ± 70 μm and surface roughness of 1.6 μm. The microstructure of DLP-316L comprises austenite with minor δ-ferrite and M 23 C 6 /M 7 C 3 carbides. The carbides originate from residual carbon due to incomplete decomposition of photosensitive resin during debinding, while δ-ferrite forms during prolonged high-temperature sintering at 1380 °C for 6 h. It not only has a high ultimate tensile strength of 543.5 MPa, but more importantly, the fracture elongation can reach 58.73 %, which is at a high level in the preparation of AISI 316 L using DLP. In addition, the tribocorrosion performance of DLP-316L in 3.5 wt% NaCl solution is better than that of the commercial as-rolled AISI 316 L. This is mainly attributed to the presence of a small amount of high-hardness carbides in the microstructure, which improves the wear and corrosion resistance of the material.
研究领域:
材料科学
·
增材制造
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
·
2023
·
IF 3.4
Shaohua Huo,Zhen Dong,Xiangcheng Li,Pengcheng Liu,Pingan Chen,Boquan Zhu
In this paper, a novel phosphate-based adhesive with excellent high-temperature bonding strength was prepared by using phosphate as the matrix and modified B 4 C, modified TiO 2 as well as low-temperature fused Zn–B–Si–Al-R glass materials as fillers. The effects of heat treatment temperature and filler compositions on the high-temperature bonding strength of the adhesive were investigated. The results indicated that the aluminum phosphate in the adhesive was transformed from orthorhombic to cubic crystalline at 210 ± 5 °C, which increased the cell stacking density from 2.19 g/cm 3 to 2.74 g/cm 3 and made the binder dense. After calcination at 500 °C, a large number of pyrophosphates were generated inside the adhesive, and the chemical bonds such as P–O–Si and P–O–Cu in these pyrophosphates formed reticulated skeletal macromolecules, which improved the network structure of the transition zone between the adhesive and stainless steel . Meanwhile, the difference in potential resulted in the exchange of Fe and Cu 2+ , H + at the bonding interface to enhance the high-temperature resistance and bonding strength of the specimen. When the additions of La 2 O 3 , Fe 2 O 3 , ZrO 2 , CuO were1.2%, 5%, 10%, and 15%, the maximum tensile strength of the specimen reached 8.73 MPa at 500 °C. The phosphate binder prepared in this work could be widely used in the field of high-temperature material repair such as aerospace and energy.
研究领域:
材料科学
·
化学工程
✓ 已验证
DOI
高影响因子
CORROSION SCIENCE
·
2018
·
IF 4.862
Jie Qiu,Bin Leng,Huajian Liu,Digby D. Macdonald,Angjian Wu,Yanyan Jia,Wandong Xue,Guojun Yu,Xingtai Zhou
The effect of SO 4 2− on the corrosion behavior of 316 L stainless steel (SS) in molten FLiNaK (LiF-NaF-KF: 46.5–11.5–42 mol.%) salt was studied. Results reveal that the SO 4 2− in the salt remarkably accelerates the corrosion of 316 L SS by promoting the dissolution of Cr, leading to increasing intergranular corrosion of the alloy. On the other hand, the results of structural characterization indicate that the SO 4 2− can react with Mn to form MnS at the grain boundaries of the alloy. The galvanic couple between MnS and steel matrix could further accelerate the intergranular corrosion of 316 L SS in molten fluoride salt environments.
研究领域:
材料科学
·
腐蚀科学
·
无机化学
·
核工程材料
·
高温电化学
✓ 已验证
DOI
高影响因子
Colloid and Interface Science Communications
·
2021
·
IF 4.914
Mohd Talha,Qi Wang,Mingjie Xu,Yucong Ma,Zhonghui Li,Yuanhua Lin
In this research, silane hybrid coatings based on γ-glycidoxypropyltrimethoxysilane/ methyltrimethoxysilane/ 3-aminopropyl trimethoxysilane (GPTMS/MTMS/ APS) were produce by sol-gel method. ZnO nanoparticles were embedded in the silane coating and this exclusive silane coating was employed to 316 L stainless steel (SS) substrates by the dip-coating method. The surface characteristics of the samples were examined by FTIR analysis, XRD , SEM-EDS, and contact angle measurements. Further, the corrosion protection behavior of the coatings was examined in 3.5 wt% aqueous NaCl solution using potentiodynamic polarization , EIS, and SECM analysis. AFM was applied to determine the surface morphologies of the samples after the polarization test. Our results exhibited that the coatings enhanced the anti-corrosion performance of SS substrates. It was also obtained that the combination of GPTMS/MTMS/APS provided better corrosion protection properties and acts as a strong physical barrier to the corrosive molecules. The presence of nano ZnO further improved the protective barrier of the coating.
研究领域:
材料科学
·
腐蚀与防护
✓ 已验证
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2024
·
IF 5.5
Longxu Li,Wenxing Jiang,Qiqi Wan,Endao Zhang,Bang Li,Lei Yuan,Guangfu Li,Junbo Hou,Xiaodong Zhuang,Junliang Zhang,Changchun Ke
Anion Exchange Membrane Water Electrolysis (AEMWE), is considered as one of the most promising available green production technologies, due to its overall low cost and high performance. Porous transport layers (PTLs), are much important for the performance of AEMWE, providing effective electron transport channels and efficient removal of gas products. Stainless steel-based PTLs have been demonstrated to achieve better performance at a reduced cost compared to routine nickel-base PTLs. Herein, PTLs based on 316L stainless-steel with varying parameters (fiber diameter, thickness and porosity) are investigated from a production perspective to identify the optimal design. How these parameters impact the performance of water electrolysis is further analyzed by separating the ohmic, activation and mass transfer overpotentials. The results indicate that the fiber diameter and porosity are of greater significance than the thickness. The fiber diameter exerts the most substantial effect on the performance and polarization distribution for AEMWE. The PTL with a fiber diameter of 12 μm performs best, representing a compromise among electrochemical reaction, electrical conductivity and mass transfer. Furthermore, the ohmic resistance and mass transfer process are the main factors influencing the observed differences in performance with varying thicknesses and porosities. The optimum thickness and porosity are subsequently identified as 0.3 mm and 72 %, respectively. In conclusion, this study presents an optimal structure for the anode PTL based on 316L stainless-steel felts in AEMWE, achieving the current density of 2.760 A/cm 2 at 2.0 V.
研究领域:
电化学
·
材料科学
·
能源技术
✓ 已验证
DOI
高影响因子
RENEWABLE ENERGY
·
2025
·
IF 9.1
Wei Liu,Wenruo Li,Jie Wang,Xinzhao Zhao,Tianyi Wang,Haoyu Zhan,Xiannian Sun,Naibao Huang
Proton exchange membrane fuel cells (PEMFC/PEMWE) are important devices for the conversion and utilization of renewable hydrogen energy. By electrodeposition in deep eutectic solvent (DES) mixed with critic acid (CA), a Nb-doped amorphous carbon coating (ACC) with enhanced conductivity was successfully grown on the surface of 316L stainless steel bipolar plates. The addition of Nb significantly lowered contact resistance of ACC to 13.8 mΩ cm 2 , while the Nb-doped ACC still exhibits excellent corrosion resistance and high electrochemical stability up to 300 h. Theoretical calculation and characterization indicate that the solvent shell structure formed between CA and Nb 5+ ions in the electrolyte facilitates the migration of Nb 5+ to the cathode, thereby promoting more Nb deposition. With the help of CA, the nucleation process of the coating shifts to instantaneous nucleation, favoring the formation of a dense and smooth coating. Moreover, the chemical adsorption of CA on the stainless steel surface enhances the adhesion between the ACC and the substrate. The excellent electrochemical property, strong interfacial adhesion, and high stability in service of the Nb-doped ACC indicates that the proposed electrodeposition method is a promising approach for fabricating ACC-modified stainless steel serving as bipolar plates.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF SUPERCRITICAL FLUIDS
·
2025
·
IF 4.4
Peng Feng,Donghai Xu,Gang Yin,Kunkun Song,Ruibo Wang,Zhiyuan Li,Pan Wang
This study investigated the corrosion behavior of 316 L (316LSS) and 304 (304SS) stainless steels under a Na 2 SO 4 deposition layer in supercritical water (SCW). The salt layer reduced oxide film densification versus pure SCW, with 304SS exhibiting more severe corrosion (e.g., pitting) due to the absence of Mo which resists pitting corrosion. Without the salt layer, oxide film thicknesses were 6.50 µm (316LSS) and 1.60 µm (304SS); in contrast, 6.52 µm and 9.33 µm, respectively, indicating thicker in SCW with the salt layer. At 723 K and 25 MPa, higher water density increased Ni/Fe ion solubilities, while the salt layer trapped these ions in the microenvironment between the layer and oxide film, generating a locally acidic and oxidizing environment via hydrolysis of Ni/Fe ions. This process accelerated metal ion leaching and oxide dissolution, further enhanced in the presence of SO 4 2- . Na 2 SO 4 deposition layer and SCW synergistically intensified corrosion in both alloys.
研究领域:
材料科学
·
腐蚀工程
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Wei Liu,Wenjing Dong,Likui Guo,Yuan Feng,Naibao Huang,Xiannian Sun
In this paper, a convenient electrodeposition method is proposed to directly fabricate a reduced graphene oxide-amorphous carbon composite coating (rGO-ACC) on a 316L stainless steel substrate. The rGO-ACC coating is achieved through a one-step reduction by utilizing a choline chloride-ethylene glycol deep eutectic solvent (DES) with the dispersion of graphene oxide. The analysis results from SEM, Raman and XPS reveal that the obtained rGO-ACC coating, with layered wrinkle morphology, uniformly covers and covalently bonds to 316L stainless steel substrate. Potentiodynamic and potentiostatic polarization tests showed that the corrosion current densities of rGO-ACC coated 316L stainless steel were of the order of 10 -7 A cm −2 in simulated proton exchange membrane fuel cells (PEMFC) working environment, indicating a significant improvement of corrosion resistance of 316L and an excellent electrochemical stability. Meanwhile, compared with the naked 316L steel, the interfacial contact resistance (ICR) of the coated stainless steel is significantly reduced due to the outstanding electrical conductivity of the coated rGO. The results manifested that deposited rGO-ACC on steel surface may be a highly promising modification method for PEMFC metal bipolar plates.
研究领域:
材料科学
·
电化学
·
能源材料
·
表面工程
·
燃料电池技术
✓ 已验证
DOI
高影响因子
Brazilian Journal of Cardiovascular Surgery
·
2015
·Vol. 30
·期 2
·159-163
·
IF 0.55
Song Chun-Li,Li Qian,Yu Yun-Peng,Wang Guan,Wang Jin-Peng,Lu Yang,Zhang Ji-Chang,Diao Hong-Ying,Liu Jian-Gen,Liu Yi-Hang,Liu Jia,Li Ying,Cai Dan,Liu Bin
Introduction: Intravascular coronary stenting has been used in the treatment of coronary artery disease (CAD), with a major limitation of in-stent restenosis (ISR). The 316 stainless steel has been widely used for coronary stents. In this study, we developed a novel coating method to reduce ISR by simultaneously coating vascular endothelial growth factor (VEGF) and anti-CD34 antibody on 316L stainless steel. Methods: Round 316L stainless steel sheets in the D-H group were polymerized with compounds generated from condensation reaction of dopamine and heparin using N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide (EDC) and N-hydroxysuccinimide (NHS). Sixteen sheets from the D-H group were further immersed into 1ug/ml VEGF165 and 3mg/ml heparin sodium one after another for 10 times, and named as the D-(H-V)10 group. Eight sheets from the D-(H-V)10 group were coated with anti-CD34 antibody and termed as the D-(H-V)10-A group. Immunofluorescence assay and ELISA were used to evaluate whether the 316L stainless steel disks were successfully coated with VEGF and anti-CD34 antibody. Results: The results of immunofluorescence assay and ELISA showed that VEGF could be detected in the D-(H-V)10 and D-(H-V)10-A group, suggesting the steel sheets were successfully covered with VEGF. Anti-CD34 antibody could only be observed in the D-(H-V)10-A group, which was the only group coated with CD34 antibody. Both results suggested that the 316L stainless steel sheets were successfully coated with VEGF and anti-CD34 antibody. Conclusion: Our study developed a method to simultaneously coat VEGF and anti-CD34 antibody to stainless metal steel. This research serves as a fundamental role for a novel coating strategy.
研究领域:
心血管工程
·
生物材料
·
医疗器械
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2025
·
IF 2.6
Bi Mengqi,Liu Wei,Yang Menghui,Huang Naibao
To enhance the corrosion resistance of 316L stainless steel, which is a potential alternative bipolar plate material for PEMWE or PEMFC, Ni–P amorphous coating was prepared by DC electrodeposition method. The results indicated that the coating’s structure strongly related to the phosphorus (P) content. Under specific phosphorus content conditions, a dense coating (Ni–P-30) with typical amorphous characteristics can be obtained, with a uniform surface morphology and no obvious structural defects. In simulated PEMWE environment, Ni–P-30’s corrosion current density decreased by one order of magnitude and the corrosion potential shifted positively by 0.29 V comparing with untreated steel. The excellent corrosion resistance of the amorphous Ni–P coating is attributed by its continuous and dense microstructure, functioning as an effective physical barrier. Meanwhile, during corrosion process, the P will enrich on the surface from the preferential dissolution of nickel in amorphous Ni–P coatings, improving the corrosion potential, reducing the corrosion current and inhibiting the hydration of Ni. Preliminary studies have shown that Ni–P-coated 316L stainless steel can be used as a replacement for graphite as a bipolar plate for PEMWE and PEMFC.
研究领域:
材料科学
·
电化学
·
表面工程
·
能源材料
·
腐蚀科学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）