Article
Materials Science, Multidisciplinary
Mahado Said Ahmed, Mounim Lebrini, Benoit Lescop, Julien Pelle, Stephane Rioual, Olivia Amintas, Carole Boullanger, Christophe Roos
Summary: The atmospheric corrosion of copper exposed in Martinique for 1 year was studied. The island suffered from the stranding of sargassum algae, which released toxic gases. The corrosion rate and products were determined, showing significant degradation of copper due to the presence of sargassum algae.
Article
Materials Science, Ceramics
Ilona Jastrzebska, Maciej Ludwig, Edyta Sniezek, Aleksandra Kaleba, Pawel Drozdz, Jacek Szczerba
Summary: This study demonstrates the corrosion behavior of a novel Cr-free Al2O3-MgAl2O4 refractory material for the copper industry against PbO-rich copper slags. Experimental and simulation methods were used to investigate the changes in phase composition and microstructure. The results indicate that passive corrosion mechanism dominates, with the formation of platelet-morphology PbAl12O19 and complex spinel (Mg,Fe,Cu,Zn)(Al,Fe)(2)O-4.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Trishelle M. Copeland-Johnson, Charles K. A. Nyamekye, Lynne Ecker, Nicola Bowler, Emily A. Smith, Raul B. Rebak, Simerjeet K. Gill
Summary: Understanding the oxidation process of Inconel 600 (A600) in different environments is important for the development of accident tolerant nuclear fuel rod claddings. This study combines synchrotron-based diffraction, Raman spectroscopy, and nano-scale electron microscopy techniques to investigate the oxidation of A600 in steam and air environments. It was found that a Cr2O3-enriched surface layer forms in steam, while a mixed phase oxide layer containing NiFe2O4, Cr2O3, Fe3O4, and Fe((3-x))CrxO(4) forms in air.
Article
Materials Science, Multidisciplinary
Trishelle M. Copeland-Johnson, Charles K. A. Nyamekye, Lynne Ecker, Nicola Bowler, Emily A. Smith, Raul B. Rebak, Simerjeet K. Gill
Summary: In this investigation, multi-modal characterization was used to evaluate the oxidation of Stainless Steel 304 under laboratory air and 100% steam (1200 degrees C, 2 h). Air oxidation resulted in Fe(NiMn)O4, Fe3O4, Fe(3,0CrxO4, and Cr2O3. Steam oxidation produced a dual layer structure, with a porous outer layer enriched in Fe2O3 and a sub-surface matrix of Fe3O4/Fe(3,0CrxO4 with SiO2/Fe(3_ x)SixO4. Based on these findings, an oxidation mechanism was proposed. The arrangement of oxidation products in air aligned with anticipated diffusion behavior, except for Cr2O3. However, the arrangement in steam deviated due to intergranular interactions with H2O, resulting in the formation of the sub-surface matrix.
Article
Materials Science, Multidisciplinary
Weijie Zhao, R. Prasath Babu, Tingru Chang, Inger Odnevall, Peter Hedstrom, C. Magnus Johnson, Christofer Leygraf
Summary: The corrosion effects on copper exposed to a humid atmosphere with formic acid were investigated at different scales of surface resolution. The study revealed that initially, there was more uniform growth of Cu2O, followed by varying topography and thickness. Local removal of Cu2O allowed the aqueous adlayer to react with the copper substrate. The formation of Cu(OH)(HCOO) and adjacent Cu2O provided microscopic and spectroscopic evidence of corrosion cells. Additionally, Nano-FTIR analysis showed an increase in the density of Cu(OH)(HCOO) nuclei with exposure time, but not their size.
Article
Engineering, Civil
Qi Guo, Yun Zhao, Ying Xing, Jinfeng Jiao, Benzhao Fu, Yuqing Wang
Summary: This study quantitatively analyzed the degradation of corroded Q235 steel through microscopic and tensile tests. It was found that corrosion pits significantly reduce the strength and ductility of the steel. A new pitting model was proposed to more accurately count and measure the pits, and predict strength degradation.
Article
Materials Science, Multidisciplinary
Xuankai Wang, Hui Su, Yi Xie, Jun Wang, Chao Feng, Dengke Li, Tangqing Wu
Summary: In this study, the corrosion behavior and mechanism of H62 brass and T2 copper in an urban atmosphere were investigated. Copper mainly forms Cu2O and CuO as corrosion products, with the presence of a small amount of Cu2Cl(OH)3. Brass shows additional Zn-containing compounds, such as ZnCl, ZnO, and ZnS, in its corrosion product. The corrosion rate of brass decreases with time, while that of copper initially increases and then decreases after 12 months. Brass exhibits better corrosion resistance than copper in the urban atmosphere. The results of this study provide scientific data support for material selection and life prediction of equipment used in urban environments.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Andri Isak Thorhallsson, Ioana Csaki, Laura Elena Geambazu, Fridrik Magnus, Sigrun Nanna Karlsdottir
Summary: The study compared the morphology and corrosion behavior of CoCrNiFeMo and CoCrNiFeMoCu high-entropy alloys in a simulated superheated geothermal environment. Results showed that Cu-containing alloys were more prone to corrosion damage due to intermetallic Cu rich sites, while Cu-free alloys were not susceptible to corrosion in the test environment.
Article
Multidisciplinary Sciences
S. Fonna, Israr Bin M. Ibrahim, Gunawarman, S. Huzni, M. Ikhsan, S. Thalib
Summary: This research investigated the corrosion rate and characteristics of corrosion products of carbon steel in the environment of Banda Aceh, Indonesia. After one year of exposure, it was found that the highest corrosion rate occurred in the March-April period, with the dominant corrosion products being Lepidocrocite and Goethite. The study utilized SEM and XRD to identify morphological features and chemical compounds of the rust, revealing a potential transformation of Lepidocrocite into Goethite over prolonged exposure time.
Article
Electrochemistry
J. Srinivasan, T. D. Weirich, G. A. Marino, A. R. Annerino, J. M. Taylor, P. J. Noell, J. J. M. Griego, R. F. Schaller, C. R. Bryan, J. S. Locke, E. J. Schindelholz
Summary: Experiments exposing ground 304 stainless steel samples to sea salt particles at different relative humidity levels showed that corrosion behavior varied significantly depending on the relative humidity of exposure. The distribution of pit populations, pit shapes, and increase in corrosion damage were all different between 40% RH and 76% RH conditions. These findings suggest that the mechanisms determining long-term corrosion behavior are different for different levels of relative humidity exposure.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
Kaiyang Li, Yimin Zeng, Jing-Li Luo
Summary: In H2O-saturated supercritical CO2, H2S promotes the formation of a protective FeS layer, but increasing temperature or adding O-2 can destroy the integrity of this layer and enhance corrosion significantly. The corrosion is likely controlled by gas chemical reactions instead of electrochemical reactions, and the sulfide stress cracking susceptibility of strained pipeline steels is lower than expected.
Article
Materials Science, Multidisciplinary
J. Becker, J. Pelle, S. Rioual, B. Lescop, N. Le Bozec, D. Thierry
Summary: This study investigated the effect of two concentrations of H2S on the atmospheric corrosion of pure Ag, Cu, and Ni. The corrosion products were analyzed using various techniques such as SEM/EDX, Raman spectroscopy, XPS, and XRD. Different corrosion products were identified based on the characterization methods, providing a better understanding of the impact of H2S on the atmospheric corrosion of these metals. The possible mechanisms involved in the formation of these corrosion products were also discussed in this study.
Article
Materials Science, Multidisciplinary
Anna Dobkowska, Millicent Dayle H. Castillo, Joseph P. Turnbull, Sridhar Ramamurthy, Dmitrij Zagidulin, Desmond E. Moser, Mehran Behazin, Peter G. Keech, David W. Shoesmith, James J. Noel
Summary: The study focused on the corrosion behavior of coarse- and fine-grained copper materials in an aerated aqueous nitric acid solution. Crystallographic orientations greatly influenced the corrosion rate in coarse-grained materials, while grain boundary etching and grain boundary pores played a significant role in fine-grained materials.
Article
Materials Science, Multidisciplinary
V. I. Chukwuike, O. G. Echem, S. Prabhakaran, S. AnandKumar, R. C. Barik
Summary: In addition to providing electrochemical corrosion protection, laser shock peening has been shown to extend the fatigue life and improve mechanical properties of metals. This study investigates the effectiveness of the method under flow conditions and prolonged immersion duration, with results indicating that peened surfaces exhibit higher corrosion resistance in 3.5% NaCl compared to unpeened surfaces.
Article
Construction & Building Technology
Evangelia Tsampali, Maria Stefanidou
Summary: This paper analyzes the long-term healing process of fiber-reinforced cementitious composites (FRCC) with polypropylene fibers (PP). The results show that immersion in seawater and tap water can achieve almost perfect surface healing, while the wet/dry condition is insufficient for healing. Additionally, the study highlights the differences in agent's structure between the crack surface and interior, and analyzes the influence of other compounds, such as magnesium, on the healing agents.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
H. Cano, I. Diaz, D. de la Fuente, B. Chico, M. Morcillo
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
(2018)
Article
Materials Science, Multidisciplinary
I. Diaz, H. Cano, P. Lopesino, D. de la Fuente, B. Chico, J. A. Jimenez, S. F. Medina, M. Morcillo
Article
Materials Science, Multidisciplinary
Gloria Acosta, Lucien Veleva, Daniel de la Fuente
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
(2018)
Article
Chemistry, Applied
C. Zea, R. Barranco-Garcia, J. Alcantara, J. Simancas, M. Morcillo, D. de la Fuente
MICROPOROUS AND MESOPOROUS MATERIALS
(2018)
Article
Chemistry, Multidisciplinary
Cristina Zea, Jenifer Alcantara, Rosa Barranco-Garcia, Manuel Morcillo, Daniel de la Fuente
Article
Construction & Building Technology
Teresa Palomar, Daniel de la Fuente, Manuel Morcillo, Monica Alvarez de Buergo, Marcia Vilarigues
BUILDING AND ENVIRONMENT
(2019)
Article
Materials Science, Multidisciplinary
Maria Fuentes, Daniel de la Fuente, Belen Chico, Irene Llorente, Jose Antonio Jimenez, Manuel Morcillo
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
(2019)
Review
Construction & Building Technology
M. Morcillo, I. Diaz, H. Cano, B. Chico, D. de la Fuente
CONSTRUCTION AND BUILDING MATERIALS
(2019)
Review
Construction & Building Technology
M. Morcillo, I. Diaz, H. Cano, B. Chico, D. de la Fuente
CONSTRUCTION AND BUILDING MATERIALS
(2019)
Article
Construction & Building Technology
Elena Bernardi, Ivano Vassura, Simona Raffo, Lara Nobili, Fabrizio Passarini, Daniel de la Fuente, Manuel Morcillo
CONSTRUCTION AND BUILDING MATERIALS
(2020)
Article
Multidisciplinary Sciences
D. Palma-Ramirez, A. M. Torres-Huerta, M. A. Dominguez-Crespo, D. Del Angel-Lopez, A. I. Flores-Vela, D. de la Fuente
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.