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Relevant bibliographies by topics / Electrode microstructure

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Academic literature on the topic 'Electrode microstructure'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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Journal articles on the topic "Electrode microstructure"

1

Malik, Affan, Kent Snyder, Minghong Liu, and Hui-Chia Yu. "Architecture Design of High-Performance Electrodes Guided by Large-Scale, High-Throughput Microstructure Simulations." ECS Meeting Abstracts MA2024-02, no. 3 (2024): 372. https://doi.org/10.1149/ma2024-023372mtgabs.

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A battery’s actual operational performance is dictated by electrode microstructure architectures besides electrode materials’ intrinsic properties. However, because of the complexities of coupled physics and microstructures, most electrode designs proceed by a traditional trial-and-error fashion. In this work, we employ a direct image-based multiphysics electrochemical simulation framework to perform detailed microstructure-level simulations in an unprecedented speed. Yet the results still contain all the details of multiphysics dynamics in the explicitly considered complex microstructure geom

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Beuse, Thomas, Mathias Fingerle, Christian Wagner, Martin Winter, and Markus Börner. "Comprehensive Insights into the Porosity of Lithium-Ion Battery Electrodes: A Comparative Study on Positive Electrodes Based on LiNi0.6Mn0.2Co0.2O2 (NMC622)." Batteries 7, no. 4 (2021): 70. http://dx.doi.org/10.3390/batteries7040070.

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Porosity is frequently specified as only a value to describe the microstructure of a battery electrode. However, porosity is a key parameter for the battery electrode performance and mechanical properties such as adhesion and structural electrode integrity during charge/discharge cycling. This study illustrates the importance of using more than one method to describe the electrode microstructure of LiNi0.6Mn0.2Co0.2O2 (NMC622)-based positive electrodes. A correlative approach, from simple thickness measurements to tomography and segmentation, allowed deciphering the true porous electrode struc

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Espinosa-Yañez, E. G., G. C. Mondragón-Rodríguez, E. José-Trujillo, and D. P. Luis. "Enhancing Ice Nucleation: The Role of Surface Roughness in Electrofreezing Using Laser Shock Processed Al6061 T6 Electrodes." Applied Sciences 14, no. 19 (2024): 9145. http://dx.doi.org/10.3390/app14199145.

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The present study investigates the impact of the electrode surface roughness on the electrofreezing of water. This research focuses on how the electrode microstructure induced by a laser treatment affects the nucleation and growth of ice crystals under controlled electric fields. For this, electrofreezing experiments of deionized water over electrodes with varying surface roughnesses and crystalline textures were conducted. The electrodes of the Al6061 T6 alloy were microstructured via the Laser Shock Processing (LSP) method. For this purpose, the pulse densities during the LSP process were va

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Abernathy, Harry, William K. Epting, Yinkai Lei, and Jian Liu. "Designing SOC Electrodes for Better Lifetime Performance." ECS Meeting Abstracts MA2024-02, no. 48 (2024): 3461. https://doi.org/10.1149/ma2024-02483461mtgabs.

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As part of the US Department of Energy’s Reversible Solid Oxide Fuel Cell (R-SOFC) and H2NEW programs, the National Energy Technology Laboratory (NETL) solid oxide cell (SOC) research group focuses on characterizing SOC degradation and improving the lifetime performance of SOC electrodes. A major tool used by NETL is its multiphysics performance degradation modeling framework, which considers microstructure, electrochemistry and mass/charge transport when simulating the lifetime energy/hydrogen output of an SOEC/SOFC sample. By simulating thousands of potential electrode microstructures varied

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Lopata, Joseph Steven, Taylor R. Garrick, Yangbing Zeng, and Sirivatch Shimpalee. "Dynamic Multi-Dimensional Numerical Transport Study of Lithium-Ion Battery Active Material Microstructures for Automotive Applications." ECS Meeting Abstracts MA2022-02, no. 28 (2022): 1073. http://dx.doi.org/10.1149/ma2022-02281073mtgabs.

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Conventional porous electrode battery modeling for a variety of applications makes assumptions to reduce the complexity of the simulation where tradeoffs between computational complexity and electrode detail can be realized without significantly impacting the accuracy of the results. The most common porous electrode battery model is the pseudo-two-dimensional (P2D) model as popularized by Newman and colleagues. These porous electrode battery models typically focus on simulating gradients in two dimensions; the primary dimension through the thickness of the battery cell electrodes and separator

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Kabra, Venkatesh, Ishita Kamboj, Veronica Augustyn, and Partha P. Mukherjee. "Data Driven Model for Lithium-Ion Battery Electrode Microstructure Property Estimation." ECS Meeting Abstracts MA2022-02, no. 3 (2022): 176. http://dx.doi.org/10.1149/ma2022-023176mtgabs.

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Li-ion batteries (LIB) are ubiquitous in today’s world with applications ranging from portable electronic devices to electric vehicles. These set of applications require the batteries to have diverse energy and power dense configurations. For these reasons the LIB exists in multiple form factors such as cylindrical, pouch cell configurations and different chemistries. The most commercialized and successful LIB are based on intercalation mechanism, which requires shuttling of Li-ion between anode and cathode with redox reaction occurring on the surface of the electrodes and ultimately leading t

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Han, Qing, Ge Ming Liu, Niu Sheng Peng, Tao Feng, Jin Feng Xia, and Jin Xia. "Preparation and Characterization of Pt/YSZ Electrode of Zirconia Oxygen Sensor." Key Engineering Materials 544 (March 2013): 72–75. http://dx.doi.org/10.4028/www.scientific.net/kem.544.72.

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Electrode slurry made of Pt powder was brushed on both surfaces of the sintered ZrO2 substrate. And then the Pt electrodes were sintered under various temperatures. The microstructure of the surface of the electrodes was characterized by scanning electronic microscope. The electrochemical properties of the electrodes were investigated by electrochemical impedance spectroscopy (EIS). The results show that the sintered temperature of the electrode has a remarkable effect on the microstructure of the electrode and the Pt electrode show favorable electrochemical catalysis performance.

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Ishii, Sho, Goroh Itoh, Shingo Mukae, and Nobuhide Itoh. "Degradation Mechanism of Tungsten Electrode for Fusing Joining." Advanced Materials Research 409 (November 2011): 849–52. http://dx.doi.org/10.4028/www.scientific.net/amr.409.849.

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Lifetime of tungsten electrodes for fusing was investigated in relation to their microstructure. Tungsten electrodes with two types of microstructures (recrystallized equi-axed and unrecrystallized fibrous) were subjected to repeated welding tests where work material was a tough pitch copper. Surface appearance of the electrodes after the test was observed with an SEM. Circumferential edge cracks were observed in the equi-axed electrode, which were presumed to be initiated by plastic flow of the work material. Although cracks were formed in the center of both types of electrodes, the total len

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Qu, Danqi, Affan Malik, and Hui-Chia Yu. "Physics-Based Simulation of Electrochemical Impedance Spectroscopy of Complex Electrode Microstructures." ECS Meeting Abstracts MA2022-02, no. 2 (2022): 111. http://dx.doi.org/10.1149/ma2022-022111mtgabs.

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Electrochemical impedance spectroscopy (EIS) is a widely used technique to measure macroscopic properties of electrodes. However, the underlying connections between the obtained macroscopic properties and electrode microstructures are not well understood because of the complexity of coupled electrochemical mechanisms and microstructure morphology. In this work, we present a smoothed-boundary-method (SBM) electrochemical simulation framework to directly simulate the electrochemical dynamics with explicit consideration of electrode microstructures and extract EIS curves from the electrochemical

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Malik, Affan, Danqi Qu, and Hui-Chia Yu. "Smoothed Boundary Method Electrochemical Simulation Framework for Complex Electrode Microstructures." ECS Meeting Abstracts MA2022-01, no. 46 (2022): 1968. http://dx.doi.org/10.1149/ma2022-01461968mtgabs.

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Battery and fuel cell electrodes possess highly complex microstructures: tortuous interparticle space, irregular particle surfaces, and various particle sizes. Additionally, coupled physical mechanisms, such as mass transport and electron transport, heat generation, and phase transformations, simultaneously occur during the electrode’s operations. All these combined complexity makes modeling electrochemical processes with explicit considerations of electrode microstructures very challenging. As such, electrode designs are still heavily relied on experimental trial-and-error methods even though

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Dissertations / Theses on the topic "Electrode microstructure"

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Ray, Kenneth G. "Spatially resolved raman spectroscopy of carbon electrode materials : a study of surface microstructure and reactivity /." The Ohio State University, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=osu14879495083686.

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Zhang, Shenjia. "Quantitative characterization and modeling of the microstructure of solid oxide fuel cell composite electrodes." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37174.

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Three-phase porous composites containing electrolyte (ionic conductor), electronic conductor, and porosity phases are frequently used for solid oxide fuel cell (SOFC) electrodes. Performance of such electrodes is microstructure sensitive. Topological connectivity of the microstructural phases and total length of triple phase boundaries are the key microstructural parameters that affect the electrode performance. These microstructural attributes in turn depend on numerous process parameters including relative proportion, mean sizes, size distributions, and morphologies of the electrolyte and el

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Naimaster, Edward J. "Effects of electrode microstructure and electrolyte parameters on intermediate temperature solid oxide fuel cell (ITSOFC) performance." Honors in the Major Thesis, University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/1298.

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This item is only available in print in the UCF Libraries. If this is your Honors Thesis, you can help us make it available online for use by researchers around the world by following the instructions on the distribution consent form at http://library.ucf.edu/Systems/DigitalInitiatives/DigitalCollections/InternetDistributionConsentAgreementForm.pdf You may also contact the project coordinator, Kerri Bottorff, at kerri.bottorff@ucf.edu for more information.<br>Bachelors<br>Engineering and Computer Science<br>Mechanical Engineering

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Liu, Jia. "The O2 electrode performance in the Li-O2 battery." Doctoral thesis, Uppsala universitet, Strukturkemi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-259589.

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Li-O2 batteries have been attracting increasing attention and R&D efforts as promising power sources for electric vehicles (EVs) due to their significantly higher theoretical energy densities compared to conventional Li-ion batteries. The research presented in this thesis covers the investigation of factors influencing the decomposition of Li2O2, the development of highly active electrocatalysts, and the design of low-cost and easy-operation binder-free O2 electrodes for Li-O2 batteries. Being the main technique, SR-PXD was used both as a continuous light source to advance the electrochemi

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Hermanns, Laura Friederike [Verfasser], and Konstantin [Akademischer Betreuer] Karaghiosoff. "Indirect tuning of the cathodic PEMFC electrode microstructure and its functionality for automotive application / Laura Friederike Hermanns ; Betreuer: Konstantin Karaghiosoff." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2016. http://d-nb.info/1128593955/34.

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Moussaoui, Hamza. "Microstructural optimization of Solid Oxide Cells : a coupled stochastic geometrical and electrochemical modeling approach applied to LSCF-CGO electrode." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAI028/document.

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Ce travail porte sur la compréhension de l’impact de la microstructure sur les performances des Cellules à Oxyde Solide (SOC), avec une illustration sur l’électrode à oxygène en LSCF-CGO. Une approche couplant de la modélisation géométrique et électrochimique a été adoptée pour cet effet. Le modèle des champs aléatoires plurigaussiens et un autre basé sur des empilements de sphères ont été développés et adaptés pour les microstructures des SOCs. Ces modèles 3D de géométrie stochastique ont été ensuite validés sur différentes électrodes reconstruites par nano-holotomographie aux rayons X au syn

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Hartridge, Adrian. "Lanthanide doped ceria thin films as possible counter electrode materials in electrochromic devices." Thesis, University of Warwick, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367148.

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Prieto, Yespica Wolfgang José. "Etude comparative du comportement électrochimique des alliages d'aluminium 2024 T351 et 7075 T7351 en milieu neutre de sulfate de sodium." Thesis, Toulouse, INPT, 2012. http://www.theses.fr/2012INPT0054/document.

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Ce travail concerne l'étude du comportement vis-à-vis de la corrosion de deux alliage d'aluminium : l'alliage 2024 (AA 2024 T351) et l'alliage 7075 (AA7075 T7351) et de l'aluminium pur, utilisé comme référence, dans une solution de Na2SO4 0,1 M à l'aide de mesures électrochimiques (courbes de polarisation, courbes de Levich et spectroscopie d'impédance) avec des électrodes à disque tournant. Comparativement aux travaux de la littérature, des données quantitatives sur les processus anodique et cathodique qui se produisent sur les deux alliages ont été obtenues. La première partie de la thèse es

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Bowling, Robert John. "Effects of microstructure on heterogeneous electron transfer at carbon electrodes /." The Ohio State University, 1989. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487671108306195.

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Garcia, Mainã Portella. "Influence of welding heat input on microstructure, mechanical properties and corrosion behaviour of high-strength steels." reponame:Repositório Institucional da UFABC, 2018.

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Orientador: Prof. Dr. Gerson Luiz Mantovani<br>Coorientador: Prof. Dr. Renato Altobelli Antunes<br>Tese (doutorado) - Universidade Federal do ABC, Programa de Pós-Graduação em Nanociências e Materiais Avançados, Santo André, 2018.<br>Recentemente, a indústria automotiva tem acelerado os esforços para melhorar a economia de combustível dos automóveis. Os aços de alta resistência possibilitam a redução de peso, garantindo a segurança e desempenho. A Microestrutura, propriedades mecânicas e comportamento de corrosão de juntas soldadas de dois aços de alta resistência (LNE500 e AHSS900) foram estu

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Books on the topic "Electrode microstructure"

1

Aguilera, José Miguel. Microstructural principles of food processing & engineering. Elsevier Applied Science, 1990.

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Rong, Yonghua. Characterization of Microstructures by Analytical Electron Microscopy (AEM). Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-20119-6.

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Bubel, Andreas. Microstructure and function of cells: Electron micrographs of cell ultrastructure. E. Horwood, 1989.

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Struble, Leslie J. Epoxy impregnation of hardened cement pastes for characterization of microstructure. U.S. Dept. of Commerce, National Bureau of Standards, 1986.

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Symposium N on Materials and Processes for Submicron Technologies (1998 Strasbourg, France). Materials and processes for submicron technologies: Proceedings of Symposium N on Materials and Processes for Submicron Technologies of the E-MRS Spring Conference, Strasbourg, France, 16-19 June 1998. Elsevier, 1999.

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6

P, Keller Lindsay, McKay David S, and United States. National Aeronautics and Space Administration., eds. Microstructure, chemistry, and origin of grain rims on ilmenite from the lunar soil finest fraction. National Aeronautics and Space Administration, 1996.

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7

Tomb, Howard. Microaliens: Dazzling journeys with an electron microscope. Farrar, Straus and Giroux, 1993.

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8

Werner, Skrotzki, ed. The geological significance of microstructures in crystalline rocks. E. Schweizerbart, 1992.

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9

Archer, Anthony David. Spectroscopic studies of field-induced electron emission from isolated microstructures. Aston University. Department of Electrical Engineering and Applied Physics, 1992.

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Zlateva, Ganka. Microstructure of metals and alloys: An atlas of transmission electron microscopy images. CRC Press, 2008.

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Book chapters on the topic "Electrode microstructure"

1

Jones, S. S., and R. D. Hildebrandt. "Electrode Binder Pyrolysis and Bond-Coke Microstructure." In Essential Readings in Light Metals. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48200-2_26.

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Jones, S. S., and R. D. Hildebrandt. "Electrode Binder Pyrolysis and Bond-Coke Microstructure." In Essential Readings in Light Metals. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118647745.ch26.

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Naouar, Asma, Hacen Dhahri, and Abdallah Mhimid. "Numerical Simulation of Planar SOFC to Study the Electrode Microstructure Influence." In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-43934-6_37.

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Riexinger, Günther, David J. Regina, Christoph Haar, et al. "Traceability in Battery Production: Cell-Specific Marker-Free Identification of Electrode Segments." In Advances in Automotive Production Technology – Towards Software-Defined Manufacturing and Resilient Supply Chains. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-27933-1_32.

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AbstractDigitalization in battery production, as well as the increase and stabilization of product quality of lithium-ion battery cells, require the elimination of information gaps between processes to enable the traceability of components and process steps to the finished product. In lithium-ion battery cell manufacturing, using a traceability system is considered a promising approach to reduce scrap rates and enable more efficient production. Today, traceability is possible from the assembled cell onwards. However, with a view to the new EU battery regulation, complete traceability down to t

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Stoyanova, R., E. Zhecheva, R. Alcántara, P. Lavela, and J. L. Tirado. "EPR Studies on the Microstructure of Lini1-yCoyO2 Electrode Materials for Lithium-Ion Batteries." In Materials for Lithium-Ion Batteries. Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-011-4333-2_28.

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Zhang, Yang, Fuqiang Chu, and Chen Chen. "Research on Preparation of Microstructure Surface Ultrasensitive Pressure Sensor Electrode Based on Inkjet Printing." In Lecture Notes in Electrical Engineering. Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-1673-1_30.

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Thümmler, Martin, Milan Dopita, Mykhaylo Motylenko, Anton Salomon, Erica Brendler, and David Rafaja. "Temperature-Induced Changes in the Microstructure of the Metal Melt Filters and Non-metallic Inclusions." In Multifunctional Ceramic Filter Systems for Metal Melt Filtration. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-40930-1_6.

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AbstractThe functionalization of ceramic foam filters aims typically at the enhancement of the thermal shock resistance and the reactivity of the filters with respect to specific inclusions and impurities. For this purpose, thermodynamically metastable phases are utilized that have a strongly defective crystal structure and/or nanocrystalline character. Such phases possess frequently better or even unique properties in comparison with their thermodynamically stable counterparts. However, the stability of metastable or defect-rich phases is usually impaired by microstructural changes, which occ

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Liu, Chien Cheng, and Jow Lay Huang. "Microstructure and Electrode Discharge Machining of TiN/Si₃N₄ Composites." In Materials Science Forum. Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-960-1.1337.

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Khanh, Luong Quoc, Tran Hoang Phuc, Nguyen Dinh Quang, et al. "The Effect of Glass Fiber on the Notched Izod Impact Strength of Polybutylene Terephthalate/Glass Fiber Blends’." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-4355-1_49.

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AbstractImproving the fire resistance of polymer and construction materials is an urgent requirement today. This article aims to study the incorporation of Polybutylene terephthalate (PBT), a versatile polymer used in most glass fiber (GF) combination fields, to study their fire resistance and impact resistance for manufacturing battery housings. We conducted injection molding and scanning electrode microscopy (SEM) and had the expected results. The impact strength of PBT/GF samples measured according to ASTM D256 is 4.69, 4.43, 3.71, 4.67, and 6.28 kJ/m2. The PBT/25% GF sample achieved the hi

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Li, Xiangyu, Baoji Ma, Bin Liu, Jinkui Cao, and Liangliang Li. "Microstructure of AZ31B Alloy Induced by Laser Shock." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-97-7887-4_63.

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Abstract Magnesium alloys have great potential in the field of biomedical degradable materials. However, their poor mechanical and corrosion resistance properties limit their applications. In this study, the AZ31B alloy with a compact hexagonal close-packed (HCP) crystal structure was selected as the material, as it tends to undergo twinning deformation rather than dislocation slip during plastic deformation due to its low stacking fault energy. The microstructures before and after LSP treatment were characterized using optical microscopy (OM), electron backscatter diffraction (EBSD), and X-ra

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Conference papers on the topic "Electrode microstructure"

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Prybylowski, John, and Ronald Ballinger. "The Influence of Microstructure on Environmentally Assisted Cracking of Alloy 718." In CORROSION 1986. NACE International, 1986. https://doi.org/10.5006/c1986-86244.

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Abstract The effect of grain boundary precipitation on the environmental behavior of alloy 718 was determined. The performance of conventionally heat treated (CHT) material was compared with that of direct aged (DA) material. Straining electrode tests with and without cathodic polarization at room temperature and fatigue tests in aqueous environments in the range 30-288°C were performed. Microstructurally, direct aging was found to significantly reduce the size and amount of grain boundary precipitates. A decrease in the amount of grain boundary precipitation results in a reduction of grain bo

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Weng, Shuo, Yuhui Huang, and Fuzhen Xuan. "Effect of Low-cycle Fatigue Behavior on Corrosion of Welded Joint in Simulated Environment of Low Pressure Nuclear Steam Turbine." In CORROSION 2018. NACE International, 2018. https://doi.org/10.5006/c2018-11124.

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Abstract The effect of microstructure evolution induced by low-cycle fatigue behavior on the corrosion of welded joint in the simulated environment of low pressure nuclear steam turbine was comprehensively investigated. The microstructure evolution was observed through optical microscope (OM), scanning electron microscope (SEM) and transmission electron microscope (TEM). Corrosion susceptibility of welded joint was examined by traditional electrochemical measurement and scanning vibrating electrode technique (SVET) measurement. The traditional electrochemical results showed that weld metal was

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Paolinelli, L. D., T. Pérez, and S. N. Simison. "The Influence of Steel Microstructure, Chemical Composition and Pre-Corrosion on CO2 Corrosion Inhibitor Efficiency." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07311.

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Abstract The influence of steel microstructure, pre-corrosion period and 1 %Cr content addition on CO2 corrosion susceptibility of C-Mn steels and on the inhibitor performance has been studied. In a previous paper, we have shown that the addition of 1 %Cr has a remarkable detrimental effect on inhibitor performance1. Two carbon steels with two different microstructures (annealed, and quenched and tempered (Q&T)) were tested in a deoxygenated 5% wt. NaCl solution, saturated with CO2 at 40 °C, pH 6. The performance of a commercial imidazoline-based product to control CO2 corrosion was studie

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Di Bonaventura, M., B. Brown, M. Singer, and S. Nesic. "Effect of Flow and Steel Microstructure on the Formation of Iron Carbonate." In CORROSION 2018. NACE International, 2018. https://doi.org/10.5006/c2018-11179.

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Abstract Iron carbonate (FeCO3) is a protective layer that can form on the surface of the steel as a by-product of CO2 corrosion. This layer acts as a barrier, thus slowing down further corrosion. Temperature, CO2 partial pressure and pH are the main environmental parameters controlling FeCO3 properties. However, the combined effects of flow and material microstructure on the formation of FeCO3 have not been well documented. In this research, two materials were used to determine the effect of microstructure on the formation of iron carbonate: an annealed low alloy carbon steel (0.05 wt.% C), f

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Rowe, Adam C., and Suresh Divi. "Evaluation of the KIEC of UNS N07718 (Alloy 718) with and without Delta Phase in Simulated Seawater with Cathodic Protection Using Double Cantilever Beam Tests." In CORROSION 2021. AMPP, 2021. https://doi.org/10.5006/c2021-16652.

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Abstract Most of the recent work done to characterize the fracture toughness of age-hardened nickel-based alloys in simulated seawater with cathodic protection (SW+CP) environments has used rising displacement techniques and compact tension specimens. The results of these tests are sometimes used in fracture mechanics calculations for design verification, though there is some uncertainty about the appropriate method for determining environmental fracture toughness from the results. There has not to date been much work performed to characterize threshold stress intensities in SW+CP environments

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Lillard, J. A., R. G. Kelly, and R. P. Gangloff. "Effect of Electrode Potential on Stress Corrosion Cracking and Crack Chemistry of a Nickel-Base Superalloy." In CORROSION 1997. NACE International, 1997. https://doi.org/10.5006/c1997-97197.

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Abstract The aqueous environment assisted cracking (EAC) resistance of a superalloy, Alloy 718 (Ni-19Fe-18Cr-5Nb-1Ti-0.6Al), was characterized by a rising displacement fracture mechanics method. This precipitation-strengthened alloy was susceptible to room-temperature EAC in acidified sodium chloride at cathodic and anodic potentials. The threshold for stable crack growth in chloride (KTH) was as low as 47 MPa√m, reduced from the laboratory air crack initiation toughness (KICi) of 81-85 MPa√m. The fracture morphology changed from ductile microvoids in air to a mixture of voids, transgranular f

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Kramer, Patrick, Fritz Friedersdorf, and Matthew Merrill. "Segmented Multi Electrode Sensor for Investigation of Environment-assisted Cracking under Dynamic Atmospheric Conditions." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-08946.

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Abstract Environment-assisted cracking (EAC) of aluminum alloys in corrosive atmospheres is a significant maintenance and safety issue for aerospace and naval structures. EAC is influenced by the interaction of stress, environment, and alloy microstructure. Atmospheric environmental conditions and corrosion kinetics are dynamic due to diurnal cycles and changing operating conditions, where temperature, relative humidity, and surface contaminants interact to control thin film electrolyte properties. In the case of EAC and other localized corrosion processes, such as crevice corrosion, separatio

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Kudo, Chihana, Xinyu Yan, and Kyosuke Yoshimi. "Microstructural Analysis of MoSiBTiC Alloys Based on Scanning Electron Microscopy Image Segmentation." In AM-EPRI 2024. ASM International, 2024. http://dx.doi.org/10.31399/asm.cp.am-epri-2024p0507.

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Abstract The microstructure of MoSiBTiC alloys is very complex, with three to four constituent phases and characteristic structures such as fine precipitates and lamellar structures. To perform the microstructural analysis efficiently, image segmentation was first performed for each phase of the microstructural images. Utilizing the Trainable Weka Segmentation method based on machine learning, the required segmentation time was dramatically reduced. Furthermore, by pre-adjusting the contrast of the images, the segmentation could be performed accurately for gray phases with different shades of

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Alink, B., B. Outlaw, V. Jovancicevic, S. Ramachandran, and S. Campbell. "Mechanism of CO2 Corrosion Inhibition by Phosphate Esters." In CORROSION 1999. NACE International, 1999. https://doi.org/10.5006/c1999-99037.

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Abstract The mechanisms of corrosion inhibition of mild steel by phosphate esters in a CO2 containing environment is studied by using various inhibitor solution characterization techniques (residual analysis, dynamic surface tension, emulsion tendency). Corrosion inhibition and inhibitor film persistancy is monitored over time by using a rotating cylinder electrode (RCE) system and linear polarization resistance (LPR) technique. Corrosion rate-time/concentration profiles are obtained for all phosphate esters studied. Optical profilometry is used to assess surface microstructure as related to i

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Shields, Mitchell H., John G. Speer, Kip O. Findley, and Fares Haddad. "Effects of Thermal Processing History on Microstructure and Local Hardness in a Bainitic TRIP Steel." In IFHTSE 2024. ASM International, 2024. http://dx.doi.org/10.31399/asm.cp.ifhtse2024p0193.

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Abstract Carbide free bainitic microstructures can be developed via different thermal processing routes, and the details affect the scale and morphology of the microstructural constituents. In this study, bainitic microstructures are formed by either a controlled cooling process or an austempering process to evaluate the relationship between microstructure and mechanical properties in a 0.2C - 2Mn - 1.5Si - 0.8Cr steel containing small amounts of Nb, Ti, B, and N, and the results are compared to a 4140 steel processed via quenching and tempering. The resulting microstructures are characterized

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Reports on the topic "Electrode microstructure"

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Patchett, B. M., and A. C. Bicknell. L51706 Higher-Strength SMAW Filler Metals. Pipeline Research Council International, Inc. (PRCI), 1993. http://dx.doi.org/10.55274/r0010418.

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The welding of high strength steels in general, and for pipeline fabrication in particular, has shown that cracking due to hydrogen absorption during welding is more complex in these steels than in older, lower strength steels. In older steels, primary strengthening was accomplished with carbon, which caused hydrogen cracking in the base metal HAZ under reasonably predictable conditions involving microstructure, residual stress and hydrogen level. Pipeline steels were and are in the vanguard of change in strengthening philosophy. The change involves two areas of steel making, chemical composit

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Dinovitzer, Aaron. PR-214-144500-R05 Weld Hydrogen Cracking Susceptibility Characterization. Pipeline Research Council International, Inc. (PRCI), 2018. http://dx.doi.org/10.55274/r0011495.

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Hydrogen cracking has been and continues to be observed in both heat-affected zones and weld metals. High carbon equivalent weldment heat-affected zones (HAZ) combined with rapid cooling have been related to the development of hydrogen cracking susceptible microstructures. Weld metal cracking is observed in both high and low strength weldments and is a particular concern for root passes due to the use of cellulosic electrodes, parent metal dilution, applied load, and weld fault stress riser effects promoting cracking. The risk of HAZ and weld cracking are increased for repair and in-service we

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Dinovitzer, Aaron. PR-214-144500-R01 Weld Hydrogen Cracking Susceptibility Characterization. Pipeline Research Council International, Inc. (PRCI), 2016. http://dx.doi.org/10.55274/r0010924.

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Hydrogen cracking has been and continues to be observed in both heat-affected zones and weld metals. High carbon equivalent weldment heat-affected zones (HAZ) combined with rapid cooling have been related to the development of hydrogen cracking susceptible microstructures. Weld metal cracking is observed in both high and low strength weldments and is a particular concern for root passes due to the use of cellulosic electrodes, parent metal dilution, applied load, and weld fault stress riser effects promoting cracking. The risk of HAZ and weld cracking are increased for repair and in-service we

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Libera, Matthew R. Transmission Electron Holography of Polymer Microstructure. Defense Technical Information Center, 1998. http://dx.doi.org/10.21236/ada344467.

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Bishop, A., B. Birnir, B. Galdrikian, and L. Wang. High-performance computing of electron microstructures. Office of Scientific and Technical Information (OSTI), 1998. http://dx.doi.org/10.2172/296818.

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Haverhals, Luke. Potentiostat for Characterizing Microstructures at Ionic Liquid/Electrode Interfaces. Defense Technical Information Center, 2015. http://dx.doi.org/10.21236/ad1008791.

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Gray. L51567 Influence of Filler Wire Carbon and Residual Element Content on the Mechanical Properties. Pipeline Research Council International, Inc. (PRCI), 1998. http://dx.doi.org/10.55274/r0010565.

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This study was conducted to determine the interactive roles of carbon, oxygen, and nitrogen and residual elements such as titanium, chromium, copper, sulfur, phosphorous, aluminum, tin, antimony, and arsenic on weld metal mechanical properties in pipeline steels. Eleven seamless, flux-core electrodes were fabricated with varying compositions and deposited in girth welds in a 24-inch diameter, API 5LX-65 pipe using the gas-metal-arc-weld (GMAW) process. The results of Charpy V-notch and crack-tip opening displacement tests indicate that desirable toughness properties may require the addition of

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Sarma, Sankar D. Electron-Phonon Interaction, Transport and Ultrafast Processes in Semiconductor Microstructures. Defense Technical Information Center, 1992. http://dx.doi.org/10.21236/ada255297.

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Das Sarma, Sankar. Electron-Phonon Interaction, Transport and Ultrafast Processes in Semiconductor Microstructures. Defense Technical Information Center, 1992. http://dx.doi.org/10.21236/ada255723.

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Bulent H. Sencer, Jian Gan, and James I. Cole. Transmission Electron Microscopy Microstructural Evaluation of HT-9 FFTF AC03 Duct. Office of Scientific and Technical Information (OSTI), 2008. http://dx.doi.org/10.2172/938441.

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