Article
Materials Science, Multidisciplinary
Diping Zeng, Zhiyi Liu, Lihua Zou, Haijiang Wu
Summary: The use of a bis-silane prepolymer to modify epoxy resin for coatings on aluminum alloy substrates enhances corrosion resistance. The bis-silane-modified coatings show improved waterproof permeability, substrate corrosion protection, and self-healing ability compared to silane monomer-modified coatings.
Article
Materials Science, Multidisciplinary
A. Trentin, S. Harb, M. C. Uvida, K. Marcoen, S. H. Pulcinelli, C. Santilli, H. Terryn, T. Hauffman, P. Hammer
Summary: The Ce(IV) additives create a dense hybrid network in the PMMA-silica coating, extending the service time of AA7075 aluminum alloy and providing self-healing ability, making it suitable for chromium-free protection technologies.
Article
Chemistry, Applied
Xin Lai, Jianfeng Hu, Tao Ruan, Jianhui Zhou, Jinqing Qu
Summary: A novel eco-friendly chitosan derivative was synthesized and proven to be an effective corrosion inhibitor for aluminum alloy in 3.5 wt.% NaCl solution, with high inhibition efficiency and increased hydrophobicity. The organic/inorganic hybrid strategy could inspire the development of low concentration, high efficiency chitosan corrosion inhibitors.
CARBOHYDRATE POLYMERS
(2021)
Article
Materials Science, Multidisciplinary
Yu-Jui Lin, Chao-Sung Lin
Summary: The corrosion behavior and corrosion rate of friction stir welded AZ31B magnesium alloy and 6N01 aluminum alloy dissimilar joints were studied using real-time imaging, potentiodynamic polarization, EIS, and hydrogen evolution tests. The corrosion rate was found to increase in the order of Al base metal < Mg base metal < stirred zone. The galvanic coupling of the Mg phase to other phases enhanced the corrosion of both base metals, and intense corrosion at BM-AZ31B elevated the interfacial pH due to water reduction on the cathodic particles of BM-6N01.
Article
Materials Science, Multidisciplinary
Arshad Ali Khan, Afzal Khan, Zainab Zafar, Ishaq Ahmad, Bilal Islam
Summary: Composite coatings were prepared using epoxy-hardener with a 2:1 composition and functionalized SiO2 with proportions of 0, 0.01, 0.03, and 0.05. The coatings were cured on aluminum alloy 7075 substrates at a temperature of 60 +/- 5 degrees C. Corrosion assessment was conducted in a 0.6M NaCl solution at room temperature. Results from FT-IR analysis confirmed the presence of Si-O bond and epoxide peaks. XRD spectra showed that the intensity of AA-7075 peaks was significantly affected, possibly due to increased absorption of x-rays in the composite coatings with higher silica content. EIS analysis revealed a significant increase in charge transfer resistance (Rct) for silica compositions of 0, 1, 3, and 5% compared to bare AA-7075 samples. Potentiodynamic plots indicated a decrease in corrosion rate of 20, 55, 40, 90, and 97% compared to pure AA-7075 substrate.
MATERIALS RESEARCH EXPRESS
(2023)
Article
Metallurgy & Metallurgical Engineering
Izuchukwu K. Nwokolo, Hongwei Shi, Paul C. Uzoma, Sharjeel Ahmed, Jiwen Li, Fuchun Liu
Summary: ZnMOF-BTA, a new metal-organic framework, was found to have excellent anti-corrosion properties. It showed a corrosion inhibition efficiency of over 90% on AA2024-T3 alloy in NaCl solution. Incorporating ZnMOF-BTA particles into polyurethane coatings enhanced their corrosion resistance and durability, as demonstrated by electrochemical tests and neutral salt spray analysis.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Yu Gao, Danqing Feng, Masoumeh Moradi, Chuntian Yang, Yuting Jin, Dan Liu, Dake Xu, Xiaobo Chen, Fuhui Wang
Summary: Three representative Vibrio species exhibit profound inhibitory effect on the corrosion of AA5083 by forming mature biofilms that act as a diffusion barrier to prevent the penetration of corrosive chloride and consume oxygen, thus increasing the passive range and inhibiting localized attack on the surfaces of AA5083.
Article
Chemistry, Multidisciplinary
Edgar Carneiro, Jose David Castro, Maria Jose Lima, Jorge Ferreira, Sandra Carvalho
Summary: Hexavalent chromium-free coatings were developed for frequently touched decorative parts using reactive magnetron sputtering. The coatings, Cr and CrO, showed the highest impedance modulus and the best corrosion resistance in artificial sweat tests.
Article
Chemistry, Analytical
Tiancai Cheng, Hualiang Huang, Gangliang Huang
Summary: The galvanic corrosion behavior between ADC12 aluminum alloy and copper in 3.5 wt% NaCl solution was investigated. The results showed that the galvanic effect reduced the formation of pitting on the surface of aluminum alloy, but promoted the formation of pitting on the surface of copper.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Cecilia Monticelli, Federica Zanotto, Andrea Balbo, Vincenzo Grassi, Alberto Fabrizi, Giulio Timelli
Summary: This research examined the corrosion behavior and susceptibility to stress corrosion cracking (SCC) of a high-pressure die-cast secondary AlSi9Cu3(Fe) alloy in 3.5% NaCl solution. Various testing methods revealed the presence of critical surface segregation zones, where strong corrosion attack occurred due to composition differences and peculiar morphology of noble Al2Cu phases. No SCC susceptibility was detected, but localized corrosion attack and hydrogen gas bubbling were observed at the interphases of noble phase/alpha-Al matrix.
Article
Materials Science, Multidisciplinary
Francesca Valentini, Luca Pezzato, Manuele Dabala, Katya Brunelli
Summary: Plasma electrolytic oxidation (PEO) with various corrosion inhibitor additives was conducted on SLM-produced AlSi10Mg alloy, and the effects of these additives on coating properties were investigated. The results showed that the additives could significantly modify the coatings and enhance their corrosion resistance.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Applied
Veronica Veloso, Fernando Cotting, Diego Silva, Adelina Santos
Summary: This study evaluated the performance of epoxy coatings containing polyaniline, graphene, and modified graphene in corrosion protection of carbon steel. The results showed that the modified graphene coating provided excellent corrosion protection with minimal damage to its structure.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Electrochemistry
A. Gasco-Owens, D. Veys-Renaux, V Cartigny, E. Rocca
Summary: The study shows that under appropriate chemical and electrochemical conditions, it is possible to fabricate AAO layer with large and regular pores on complex commercial aluminum alloys. The presence of alloying elements induces morphological specificities, such as the cyclic accumulation/dissolution of noble elements leading to the formation of regularly spaced transversal pores.
ELECTROCHIMICA ACTA
(2021)
Article
Materials Science, Multidisciplinary
A. S. Gnedenkov, S. Lamaka, S. L. Sinebryukhov, D. Mashtalyar, V. S. Egorkin, I. M. Imshinetskiy, M. L. Zheludkevich, S. Gnedenkov
Summary: The composite calcium-phosphate coating on MA8 Mg alloy, modified with superdispersed polytetrafluoroethylene using electrophoretic deposition, decreases electrochemical activity of the sample in minimum essential medium and ensures the material biocompatibility.
Article
Chemistry, Physical
Alexey Y. Zhizhchenko, Anastasiia V. Shabalina, Ali A. Aljulaih, Stanislav O. Gurbatov, Aleksandr A. Kuchmizhak, Satoru Iwamori, Sergei A. Kulinich
Summary: This study investigated the long-term stability of organosilane layers formed on polished aluminum alloy in contact with water. The results showed that the prepared organosilane layer gradually hydrolyzed over time, allowing water to interact with the underlying layer and causing a decrease in hydrophobicity. Additionally, local electrochemical corrosion was observed in the one-layer samples after immersion in water.
Article
Engineering, Environmental
Lian-Kui Wu, Hao Wu, Hui-Bin Zhang, Hua-Zhen Cao, Guang-Ya Hou, Yi-Ping Tang, Guo-Qu Zheng
CHEMICAL ENGINEERING JOURNAL
(2018)
Article
Materials Science, Multidisciplinary
Lian-Kui Wu, Wei-Yao Wu, Jia-Lin Song, Guang-Ya Hou, Hua-Zhen Cao, Yi-Ping Tang, Guo-Qu Zheng
Article
Metallurgy & Metallurgical Engineering
Lian-Kui Wu, Jun-Jie Xia, Hua-Zhen Cao, Wen-Juan Liu, Guang-Ya Hou, Yi-Ping Tang, Guo-Qu Zheng
OXIDATION OF METALS
(2018)
Article
Materials Science, Multidisciplinary
Lian-Kui Wu, Jing-Jia Wu, Wei-Yao Wu, Guang-Ya Hou, Hua-Zhen Cao, Yi-Ping Tang, Hui-Bin Zhang, Guo-Qu Zheng
Article
Chemistry, Physical
Lian-Kui Wu, Yu-Xun Zhu, Min Liu, Guang-Ya Hou, Yi-Ping Tang, Hua-Zhen Cao, Hui-Bin Zhang, Guo-Qu Zheng
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Review
Materials Science, Multidisciplinary
Lian-Kui Wu, Jing-Jia Wu, Wei-Yao Wu, Fa-He Cao, Mei-Yan Jiang
JOURNAL OF MATERIALS SCIENCE
(2020)
Article
Materials Science, Multidisciplinary
Jing-Jia Wu, Hao-Jie Yan, Fa-He Cao, Lian-Kui Wu
Summary: By using electrodeposited SiO2 film as the interlayer, a glass-ceramic coating incorporating 8YSZ and ZrB2 particles was fabricated on TiAl alloy, resulting in improved oxidation performance and interfacial structure. The compact coating inhibited oxygen inward diffusion, while the reaction between the SiO2 interlayer and potassium silicate coating enhanced adhesion and suppressed degradation at the coating/substrate interface.
Article
Materials Science, Multidisciplinary
Guangqiang Lin, Yanli Wang, Lingxu Yang, Rongfa Sun, Liankui Wu, Xiaofeng Zhang, Huijun Liu, Chaoliu Zeng
Summary: This study investigates the CMAS corrosion behavior of a novel high entropy material (Nd0.2Gd0.2Y0.2Er0.2Yb0.2)(2)Zr2O7 and reveals the formation of a dense layer on the material's surface, composed of apatite type and RE/Ca-ZrO2 phases, which significantly slows down the infiltration rate of CMAS. The study highlights the potential of high entropy materials for extreme resistance to CMAS corrosion.
Article
Materials Science, Multidisciplinary
Hao-Jie Yan, Yun-Yang Li, Ruo-Zhan Yin, Qing-Qing Sun, Hui-Jun Liu, Chao-Liu Zeng, Lian-Kui Wu, Fa-He Cao
Summary: SiOC coating was electrodeposited on TiAl alloy to improve its high temperature oxidation resistance. The SiOC coating exhibited good thermal stability and resisted the formation of crystal structures and pores, while also improving the barrier property of the oxide scale.
Article
Chemistry, Physical
Xin-Hui Gu, Xin-Ran Li, Qin-Hao Zhang, Lian-Kui Wu, Fa -He Cao
Summary: The current research on high entropy alloys (HEAs) focuses mainly on the influence of element composition and percentage difference on their corrosion resistance. However, there are obvious differences in the properties of the passive film formed by different element additions. Therefore, it is important to investigate the effect of the passive film on the corrosion behavior of HEAs.
Article
Materials Science, Multidisciplinary
Yun-Yang Li, Hao-Jie Yan, Lian-Kui Wu, Fa-He Cao
Summary: In this study, a silicon oxycarbide (SiOC) coating was fabricated using polydimethylsiloxane (PDMS) and its oxidation behavior at high temperatures was evaluated. The SiOC coating exhibited good oxidation resistance, but cracks on the surface of the coating were observed, which may lead to the formation of thermally grown oxide layer.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Zhe-Xuan Li, Yan-Hua Liu, Hui-Jun Liu, Lian-Kui Wu, Fa-He Cao
Summary: In order to improve the hot corrosion resistance of Ti48Al2Nb2Cr alloy, an Al coating was deposited using magnetron sputtering and then anodized in fluorine-containing ethylene glycol. Prior to salt deposition, the specimen was preoxidized in air to form an Al2O3-based protective layer. The hot corrosion behavior of the specimen contaminated with 75 wt% Na2SO4 and 25 wt% NaCl was evaluated at 700 degrees C. It was found that anodization facilitated the formation of a dense Al2O3 layer, while the magnetron sputtered Al coating provided Al element for continuous generation of protective Al2O3, acting as a diffusion barrier for inward diffusion of oxygen, salt ions, and outward diffusion of matrix elements.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Yu-Xun Zhu, Min Liu, Guang-Ya Hou, Yi-Ping Tang, Lian-Kui Wu
Summary: In this study, NiFeV-LDH with abundant highly active sites for the OER was synthesized and characterized. Results show that electrochemical activation promotes the release of vanadium and reconstruction of the surface composition, leading to excellent OER activity. The synergistic effect of iron and vanadium contributes to the enhanced performance and stability of NiFeV-LDH, suggesting that surface reconstruction is an efficient strategy to improve OER activity.
SUSTAINABLE ENERGY & FUELS
(2021)
Article
Chemistry, Physical
Yu-Yang Sun, Mei-Yan Jiang, Lian-Kui Wu, Guang-Ya Hou, Yi-Ping Tang, Min Liu
SUSTAINABLE ENERGY & FUELS
(2020)
Article
Chemistry, Multidisciplinary
Yu-Xun Zhu, Mei-Yan Jiang, Min Liu, Lian-Kui Wu, Guang-Ya Hou, Yi-Ping Tang
Article
Materials Science, Multidisciplinary
Zhichao Shang, Xiaoping Cai, Farshid Pahlevani, Yan Zheng, Akbar Hojjati-Najafabadi, Xinran Gao, Baojing Zhang, Peizhong Feng
Summary: High porosity Co-Al-Fe intermetallics with 3D-microstructures were successfully synthesized in one step via a thermal explosion reaction. The link between pore structure and permeability was investigated using 3D-XRM technology. The corrosion resistance of the samples with different Fe contents was studied at 900 degrees C under an oxygen/sulphur atmosphere for up to 120 h. The results showed that the samples maintained stable pore structure and intact internal matrices, attributed to the formation of a thin protective layer on the surface. In addition, inward diffusion of S resulted in the formation of FeS nodules.
Article
Materials Science, Multidisciplinary
Lian Ma, Hain Yang, Daquan Zhang, Wei Wu
Summary: In this study, an environmentally friendly volatile corrosion inhibitor, lysine salts (LA), was prepared between graphene oxide (GO) layers using an in situ intercalation technique. The corrosion inhibition effect of LA was evaluated, and it was found that LA-GO2 achieved a 99.3% corrosion inhibition efficiency after composition optimization. The inhibition of the electrochemical anodic process on the surface of mild steel was the main reason for the high corrosion inhibition efficiency of LA-GO2. The properties of the surface film on the corroded steel were also characterized in detail to understand the corrosion inhibition mechanism of LA-GO2.
Article
Materials Science, Multidisciplinary
Running Wang, Jiaping Zhang, Bing Liu, Jie Fei, Qiangang Fu
Summary: By introducing a tailored SiC-C interphase, the carbon fiber can be effectively protected, improving the mechanical and ablation properties of leading edge shaped C/C-ZrC-SiC composites.
Article
Materials Science, Multidisciplinary
Zihua Wang, Chijia Wang, Ruitao Wang, Jiapeng Deng, Kun Zhang, Yanji Zhu, Huaiyuan Wang
Summary: A robust anti-corrosive coating has been developed using functional fly ash, which demonstrates excellent corrosion resistance and improved mechanical properties. The coating achieves these enhancements through molecular cross-linking design and surface augmentation techniques, resulting in a significantly improved impedance modulus compared to pure polyurea coatings.
Article
Materials Science, Multidisciplinary
Haofei Sun, Meifeng Li, Hao Zhang, Jing Liu
Summary: The oxidation behavior of FeCrNi medium entropy alloy was investigated through experimental observations and density functional theory (DFT) calculations. The study found that at 900 degrees C, the alloy forms a desirable and continuous oxide layer, while at 1000 degrees C, the oxide layer becomes discontinuous with penetration of oxide. These observations highlight the significant role of phase structure in promoting the formation of protective oxide scales and influencing oxidation resistance.
Article
Materials Science, Multidisciplinary
Yang Li, Ke Ma, Jingjun Xu, Jingjing Li, Yueming Li, Yi Zhang, Jun Zuo, Meishuan Li
Summary: Cr2AlC diffusion barrier effectively blocks the diffusion of Ti, enhancing the stability and spalling resistance of the Al2O3 scales between NiCrAlY coating and TiAl alloy.
Article
Materials Science, Multidisciplinary
Weiyi Wang, Qinglin Pan, Xiangdong Wang, Bing Liu
Summary: By adding Ce, Sc, Y and Zr elements to Al-Mg-Si alloy, the microstructure of the alloy can be regulated, and the corrosion and heat resistance of the materials can be improved.
Article
Materials Science, Multidisciplinary
Andrea Cristoforetti, Javier Izquierdo, Ricardo M. Souto, Flavio Deflorian, Michele Fedel, Stefano Rossi
Summary: This study presents a new approach to studying the mechanism of filiform corrosion in organic coated steel using the scanning vibrating electrode technique (SVET) and micropotentiometry (potentiometric SECM). The electrochemical activity under the coating was evaluated by mapping the ionic current densities coming from artificial defects made in specific locations of the filament. Antimony tips were also used to investigate the pH changes associated with different corrosion reactions at the metal-paint interface. Local pH levels along the filament in the anodic and cathodic regions were determined.
Article
Materials Science, Multidisciplinary
Yang Gao, Dayun Sun, Zhu Liu, Shuo Cong, Rui Tang, Yanping Huang, Lefu Zhang, Xianglong Guo
Summary: The corrosion characteristics of a novel alumina-forming austenitic steel in high-pressure high-temperature water environment were studied. The addition of aluminum has a negative effect on the continuity of the alumina scale.
Article
Materials Science, Multidisciplinary
Negin Madelat, Benny Wouters, Peter Visser, Zahra Jiryaeisharahi, Kristof Marcoen, Shoshan T. Abrahami, Annick Hubin, Herman Terryn, Tom Hauffman
Summary: This work explores the correlation between electrolyte transport properties and the variation of pigment volume concentration (PVC) in organic coatings. An odd random phase electrochemical impedance spectroscopy (ORP-EIS) approach is used to analyze the diffusion of ions independent from water uptake. The results show that a higher PVC leads to a more homogeneous coating structure, resulting in faster diffusion of ions and enhanced water uptake.
Article
Materials Science, Multidisciplinary
Eloa Lopes Maia, Serguei Gavrilov, Valentyn Tsisar, Kitty Baert, Iris De Graeve
Summary: The effect of pre-oxidation in air at 300-500°C on the initiation and development of liquid metal corrosion attack on 316L austenitic steel in static lead-bismuth eutectic (LBE) has been investigated. It was found that pre-formed oxide films can protect the surface against dissolution, while high temperature pre-oxidation leads to localized corrosion.
Article
Materials Science, Multidisciplinary
Baozhuang Sun, Qiuyu Wang, Yue Pan, Zhiyong Liu, Cuiwei Du, Xiaogang Li
Summary: In this study, a non-steady electrochemical model was established to investigate stress corrosion cracking (SCC). The model was verified using 304 SS with various microstructures, confirming its effectiveness in assessing SCC susceptibility.
Article
Materials Science, Multidisciplinary
Xingyu Xiao, Xinhua Liu, Zhilei Wang, Xuexu Xu, Mingying Chen, Jianxin Xie
Summary: The corrosion behavior and mechanisms of Cu-10Ni-X (Al, Fe, Mn, Cr, Sn, Ti, Zn) alloys in a 3.5% NaCl solution were systematically investigated. Both computational and experimental results revealed that except Ti, other elements could enhance the corrosion resistance of Cu2O passivation film.
Article
Materials Science, Multidisciplinary
Gen Zhang, Yan-Ping Huang, E. Jiang, Wei -Wei Liu, Hong Yang, Jing Xiong, Yong-Fu Zhao
Summary: The addition of aluminum has a significant influence on the intermetallic compounds in AFA alloys, particularly increasing the content of B2-NiAl phase. In the SCO2 environment, the oxide scales formed on AFA alloys with aluminum were thinner than on ASS without aluminum, and the structure of the oxide scales changed to a double-layer structure.
Article
Materials Science, Multidisciplinary
Yuxuan He, Guozheng Xiao, Chao Wang, Xuefeng Lu, Liuyuan Li, Shiying Liu, Yusheng Wu, Zhanjie Wang
Summary: The relationship between configurational entropy and lattice distortion in novel rare earth monosilicates was investigated, and the effect of configurational entropy on their properties was studied. The results showed that lattice distortion increased with the increase of configurational entropy, but a highly symmetrical crystal structure was formed when the configurational entropy was large enough, inhibiting the lattice distortion.