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Assessing the corrosion protection property of coatings loaded with corrosion inhibitors using the real-time atmospheric corrosion monitoring technique

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 119-126页

作者： Xiaoxue Wang Lulu Jin Jinke Wang Rongqiao Wang Xiuchun Liu Kai Gao Jingli Sun Yong Yuan Lingwei Ma Hongchang Qian Dawei Zhang School of Energy and Power Engineering Beihang UniversityBeijing 100191China Beijing Institute of Space Long March Vehicle Beijing 100076China National Materials corrosion and protection Data Center University of Science and Technology BeijingBeijing 100083China Institute of Materials Intelligent Technology Liaoning Academy of MaterialsShenyang 110004China Shanghai Spaceflight Precision Machinery Institute Shanghai 201600China

The atmospheric corrosion monitoring(ACM)technique has been widely employed to track the real-time corrosion behavior of metal ***,limited studies have applied ACM to the corrosion protection properties of organic *** study compared a bare epoxy coating with one containing zinc phosphate corrosion inhibitors,both applied on ACM sensors,to observe their corrosion protection properties over *** with artificial damage via scratches were exposed to immersion and alternating dry and wet environments,which allowed for monitoring galvanic corrosion currents in *** the corrosion tests,the ACM currents of the zinc phosphate/epoxy coating were considerably lower than those of the blank epoxy *** trend in ACM current variations closely matched the results obtained from regular electrochemical tests and surface *** alignment highlights the potential of the ACM technique in evaluating the corrosion protection capabilities of organic *** with the blank epoxy coating,the zinc phosphate/epoxy coating showed much-decreased ACM current values that confirmed the effective inhibition of zinc phosphate against steel corrosion beneath the damaged coating.

关键词： atmospheric corrosion monitoring technology corrosion inhibitor coating carbon steel corrosion protection

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Layered double hydroxide(LDH) for multi-functionalized corrosion protection of metals: A review

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Journal of Materials Science & Technology 2022年第7期102卷 232-263页

作者： Yanhui Cao Dajiang Zheng Fan Zhang Jinshan Pan Changjian Lin State Key laboratory of Physical Chemistry of Solid Surfaces Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China State Key laboratory for Marine corrosion and protection Luoyang Ship Material Research InstituteXiamen 361101China College of Materials Xiamen UniversityXiamen 361005China Division of Surface and corrosion Science Department of ChemistryKTH Royal Institute of TechnologyStockholm SE-10044Sweden

Layered double hydroxide(LDH) has been widely developed in the field of corrosion and protection in recent years based on its unique characteristics including anion capacity, anion exchange ability, structure memory effect, and barrier resistance. This paper comprehensively reviews recent work on the preparations, properties of LDH in the forms of powder and film and their applications in different environments in corrosion and protection. Some novel perspectives are also proposed at the end of the review for future research in corrosion and protection field.

关键词： Layered double hydroxide Powder Films corrosion protection

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corrosion behavior of NiCr alloys in HCl-containing oxidation atmosphere at 700800 ℃

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中国有色金属学会会刊：英文版 2004年第3期14卷 543-549页

作者：张轲牛焱潘太军吴维 State Key laboratory for Metals corrosion and protection

corrosion behaviors of pure Ni and three NiCr alloys were investigated in an HCl-containing oxidizing atmosphere at 700 ℃ and 800 ℃. All materials suffer from accelerated corrosion at both temperatures. NiCr alloys show an initial mass loss due to the formation of volatile CrCl3 and CrO2Cl2. Some chlorides are detected at the scale/substrate interface and many voids are also found there. NiCr alloys with higher chromium content have better corrosion resistance. However, Ni50Cr is inferior to Ni25Cr due to its two-phase structure, which makes it easy for chlorine to diffuse along grain boundary and to occur inner oxidation. The relevant corrosion mechanism was also discussed.

关键词： NiCr合金高温氧化腐蚀氯化氢 Ni50Cr Ni25Cr

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Effects of Carbon Content and Microstructure on corrosion Property of New Developed Steels in Acidic Salt Solutions

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Acta Metallurgica Sinica(English Letters) 2014年第1期27卷 115-123页

作者： Feilong Sun Xiaogang Li Xuequn Cheng corrosion and protection Center University of Science and Technology Beijing Key laboratory of corrosion and protection(Ministry of Education)

New steels with different carbon contents were self-developed by thermo-mechanical controlled processing. The effects of the carbon content and the microstructure on the corrosion properties of new steels were investigated by immersion test and SEM. The results indicated that the ferrite phase （both the proeutectoid and eutectoid ferrite） dissolved preferentially. Cementite reserved and accumulated on the surface. As carbon content increased, the content of ferrite decreased and cathode/anode area ratio increased. Therefore, the corrosion rate of new steels increased from 0.30 to 0.90 mm/years when the carbon content rose from 0.05 to 0.13 wt%. The corrosion process of new steels was studied using electrochemical impedance spectroscopy experiments during 72 h. It indicated that the impedance modulus *** nz of the new steels reduces with the increase of the immersion time. While the corrosion process of the new steel with 0.11 wt% C developed faster than that with 0.07 wt% C, although their *** nz was similar at the initial stage.

关键词： Carbon content Microstructure corrosion behavior Electrochemical impedance spectroscopy SEM

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corrosion protection of waterborne epoxy coatings containing mussel-inspired adhesive polymers based on polyaspartamide derivatives on carbon steel

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Journal of Materials Science & Technology 2018年第12期34卷 2464-2471页

作者： Mingliang Yang Jianhua Wu Daqing Fang Bo Li Yang Yang College of Materials Science and Chemical Engineering Harbin Engineering UniversityHarbin 150001China State Key laboratory for Marine corrosion and protection Qingdao 266101China Xiamen Sunrui Ship Coating Co. LTD.Xiamen 361101China

A novel mussel-inspired adhesive polymer（PHEA-DOPA） containing the 3,4-dihydroxyphenylalanine（DOPA） functional group based on polyaspartamide derivatives was synthesized. The corrosion protection of the waterborne epoxy coatings containing the adhesive polymers was investigated by electrochemical impedance spectroscopy（EIS）. The results indicated that the PHEA-DOPA could improve the corrosion resistance of the waterborne epoxy coating. The corrosion products were also analyzed by Raman microspectroscopy（RM）, indicating the formation of the insoluble DOPA-Fe complexes on the carbon steel surface. These complexes simultaneously acting as a passivating layer, can inhibit the process of corrosion at the metal-solution interface. The differential scanning calorimeter（DSC） measurement indicated that PHEA-DOPA can increase the crosslinking density of coating. The effect of O;on the protective mechanism of the PHEA-DOPA coating in a 3.5% NaCl solution was also evaluated by EIS. The results indicated that the barrier effect was significantly improved under aerated conditions because DOPA was oxidized to DOPA-quinone（Dq） by O;, which triggered the reaction with Fe ions that were released from the surface of the carbon steel. This led to more compact coatings.

关键词： corrosion protection Adhesive polymer Inhibitor Waterborne PHEA-DOPA

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Improving fatigue performance of Ti-6Al-4V alloy via ultrasonic surface rolling process

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Journal of Materials Science & Technology 2019年第8期35卷 1555-1562页

作者： Chengsong Liu Daoxin Liu Xiaohua Zhang Dan Liu Amin Ma Ni Ao Xingchen Xu corrosion and protection Research laboratory Northwestern Polytechnical University

The effect of a gradient nanostructured(GNS) surface layer obtained by ultrasonic surface rolling process(USRP) on the fatigue behavior of Ti-6Al-4V alloy has been studied in this paper. Microstructure, surface topography, surface roughness and residual stress measurements were performed to characterize the surface under different conditions. Rotating bending fatigue tests were carried out to evaluate the fatigue behavior of different treatments. The results present a remarkable fatigue performance enhancement for the Ti-6Al-4V alloy with a GNS surface layer obtained by application of USRP with respect to the untreated condition, notwithstanding its considerable surface roughness due to severe ultrasonic impacts and extrusions. Mechanical surface polishing treatment further enhances the beneficial effects of USRP on the fatigue performance. The significantly improved fatigue performance can mainly be ascribed to the compressive residual stress. Simultaneously, the GNS surface layer and surface work hardening have a synergistic effect that accompanies the effect of compressive residual stress.

关键词： Ultrasonic surface rolling process Fatigue Compressive residual stress Gradient nanostructured surface layer Ti-6Al-4V alloy

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Effect of TiN/Ti multilayer on fretting fatigue resistance of Ti-811 alloy at elevated temperature

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中国有色金属学会会刊：英文版 2009年第3期19卷 557-562页

作者：张晓化刘道新 corrosion and protection Research laboratory Northwestern Polytechnical University

The TiN/Ti multilayer was deposited on Ti-811 alloy surface by magnetron sputtering(MS) technique for improving fretting fatigue(FF) resistance of the titanium alloy at elevated temperature. The element distribution, bonding strength, micro-hardness and ductility of the TiN/Ti multilayer were measured. The effects of the TiN/Ti multilayer on the tribological property and fretting fatigue resistance of the titanium alloy substrate at elevated temperature were compared. The results indicate that by MS technique a TiN/Ti multilayer with high hardness, good ductility and high bearing load capability can be prepared. The MS TiN/Ti multilayer, for its good toughness and tribological behavior, can significantly improve the wear resistance and FF resistance of the Ti-811 alloy at 350 ℃.

关键词：微动疲劳 TiN 多层膜钛合金疲劳抗力高温摩擦学性能技术改进

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Effect of Microstructures on corrosion Behavior of Nickel Coatings:(Ⅰ) Abnormal Grain Size Effect on corrosion Behavior

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Journal of Materials Science & Technology 2015年第12期31卷 1186-1192页

作者： Guozhe Meng Yang Li Yawei Shao Tao Zhang Yanqiu Wang Fuhui Wang Xuequn Cheng Chaofang Dong Xiaogang Li corrosion and protection laboratory Key Laboratory of Superlight Materials and Surface Technology (Harbin Engineering University)Ministry of Education laboratory for corrosion and protection Institute of Metal ResearchChinese Academy of Sciences corrosion and protection Center University of Science and Technology Beijing

Nickel coatings with different microstructures were synthesized by pulse jet electrodeposition *** morphology and microstructure were investigated by scanning electron microscopy（SEM）and transmission electron microscopy（TEM）.The corrosion property of the coatings was studied by using polarization,electrochemical impedance spectroscopy（EIS）,potential of zero free charge（PZFC） measurements and Mott-Schottky（M-S） *** results showed that the coating with grain size of 50 nm possessed higher corrosion resistance than that with grain size of 10 *** abnormal behavior may be related to the existence of nanoscale twins in the coatings and the lower concentration of acceptor in the passive films.

关键词： Nanocrystalline Pulse jet electrodeposition corrosion Grain size Growth twins

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Effects of Applied Magnetic Field on corrosion of Beryllium Copper in NaCl Solution

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Journal of Materials Science & Technology 2010年第4期26卷 355-361页

作者： Jing Hu, Chaofang Dong, Xiaogang Li and Kui Xiao corrosion & protection Center, University of Science and Technology Beijing, Key laboratory for corrosion and protection of Ministry of Education, Beijing 100083, China [a] corrosion & protection Center University of Science and Technology Beijing Key laboratory for corrosion and protection of Ministry of Education Beijing 100083 China

The effects of an applied magnetic field on the corrosion process of beryllium copper in NaCl solution have been investigated by electrochemical measurements, scanning electron microscopy （SEM） and energy dispersive spectroscopy （EDS）. The results showed that a horizontal magnetic field with 0.4 T barely shifted the open circuit potentials （Ecorr） of beryllium copper in NaCl solution with different concentrations. However, the horizontal magnetic field increased the limiting current density of beryllium copper in NaCl solution with low concentration, while decreased the limiting current density of beryllium copper in NaCl solution with high concentration. It was found that magnetic field accelerated the diffusion of CuCl2- away from the electrode surface and delayed the formation of Cu2O. The results of SEM and EDS showed that the inffuence of magnetic field over the elements distribution of the corrosion products differed from the different concentration of the immersion solution.

关键词： Beryllium copper Magnetic field corrosion

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Effect of grain size on high-temperature oxidation behavior of Cu-80Ni alloy

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中国有色金属学会会刊：英文版 2003年第4期13卷 907-911页

作者：曹中秋牛焱曹丽杰吴维 Department of Chemistry State Key laboratory for corrosion and protection

The thermogravimetric analysis of binary Cu 80Ni alloys prepared respectively by conventional casting(CA) and mechanical alloying(MA) techniques and presenting widely different grain sizes was performed at 800 ℃ in air in order to study the effect of grain size change on the oxidation behavior of a solid solution alloy. The results show that the kinetic curves for the oxidation of the two alloys are complex and deviate from the parabolic rate law and usually are not composed of a single stage. Mixed scales were produced on the CACu 80Ni alloy surface, which consists of a mixture of copper and nickel oxides. However, oxide scale for MACu 80Ni alloy is mainly composed of a thick compact and continuous inner layer of nickel oxide. The reduction in the alloy grain size speeds up the diffusion of the more reactive component nickel from the alloy to alloy/oxide scale interface and completes the transition from a mixed scale to continuous scale of nickel oxide.

关键词： Cu-80Ni合金高温氧化晶粒尺寸铜合金机械合金化铸造合金

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