This (ReadMe) file was created on [2026-06-29] by Klara Kregar. ------------------- GENERAL INFORMATION ------------------- Name of the dataset: Dataset for the article "A coupled multi-electrode array sensor for monitoring galvanic corrosion between copper and steel". This dataset forms the basis of a research paper with the same title [1]. Author/leading researcher details Name and surname: Klara Kregar ORCID: 0009-0004-5370-6653 Institution: Slovenian National Building and Civil Engineering Institute (ZAG) Address: Dimičeva ulica 12, 1000 Ljubljana Email: klara.kregar@zag.si Author's contribution to the dataset: investigation, conceptualization, formal analysis, data curation, writing the original draft of the manuscript [1], and editing the manuscript Information about the author(s) Name and surname: Miha Hren ORCID: 0000-0001-5826-0508 Institution: Slovenian National Building and Civil Engineering Institute (ZAG) Address: Dimičeva ulica 12, 1000 Ljubljana Email: miha.hren@zag.si Author's contribution to the dataset: formal analysis of micro-CT data of CMEA-CS-3 sensor, reviewing, and editing [1] Name and surname: Aleš Nagode ORCID: 0000-0003-2175-0516 Institution: Faculty of Natural Sciences and Engineering Address: Aškerčeva 12 Email: Ales.Nagode@ntf.uni-lj.si Author's contribution to the dataset: formal analysis of FE-SEM data of CMEA-CS-1 and CMEA-CS-3 sensor, reviewing, editing [1], and supervision Name and surname: Tadeja Kosec ORCID: 0000-0001-6790-1880 Institution: Slovenian National Building and Civil Engineering Institute (ZAG) Address: Dimičeva ulica 12, 1000 Ljubljana Email: tadeja.kosec@zag.si Author's contribution to the dataset: contribution to Raman and SEM data of CMEA-CS-1 and CMEA-CS-3 sensor, conceptualization, reviewing, editing [1], and supervision Name and surname: Sara Šadl ORCID: / Institution: Slovenian National Building and Civil Engineering Institute (ZAG) Address: Dimičeva ulica 12, 1000 Ljubljana Email: sara.sadl@zag.si Author's contribution to the dataset: creator of micro-CT raw data of CMEA-CS-1 sensor Date of data collection: from 13.02.2025 to 26.02.2026 Information on the funders/programmes/projects that made the data collection possible: Slovenian Research and Innovation Agency (ARIS) through the research program P2-0273 "Building Structures and Materials" ----------------------------- SHARING/ACCESSING INFORMATION ----------------------------- Data licences/restrictions: CC BY 4.0 References to publications that use the data: [1] -------------- DATA AND FILES -------------- File list: - "Inventory-of-dataset-Kregar" provides a detailed description of the dataset, its methodology, and its connection to the article "A coupled multi-electrode array sensor for monitoring galvanic corrosion between copper and steel". - Figure_1.jpg --- Description: Image showing a color matrix of the 5x5 grid of CMEA-CS-1 and CMEA-CS-3 sensors. The 5x5 grid represents a set of electrodes arranged in columns labeled A–E and rows labeled 1–5 (e.g., electrode A1, B1, C1, D1, etc.). The electrodes are made of copper or carbon steel, depending on the ratio and layout shown in Figure 1, as referred in paper [1]. - CMEA-CS-1_RAW-DATA.zip --- Description: Series of .lvm (tab delimited) files representing CMEA measurements on 24 copper electrodes and 1 carbon steel electrode under a bentonite mixture in an oxic environment. The first column represents the measurement record number, and all subsequent columns represent current measurements on individual electrodes from 0-24. A file is created every 15 minutes. Device offsets were calculated from the initial measuring period, and drift offsets were also corrected so that the current sum is zero. Measurement data acquired between 17.8.2025 and 18.8.2025 were discarded due to electrochemical noise from the power supply network, which compromised the reliability of the results. The data were processed with R version 4.5.2, running RStudio 2026.01.1. Data are related to Figure 2 and Figure 4 in paper [1]. - CMEA-CS-3_RAW-DATA.zip --- Description: Series of .lvm (tab delimited) files representing CMEA measurements on 22 copper electrodes and 3 carbon steel electrodes under a bentonite mixture in an oxic environment. The first column represents the measurement record number, and all subsequent columns represent current measurements on individual electrodes from 0-24. A file is created every 15 minutes. Device offsets were calculated from the initial measuring period, and drift offsets were also corrected so that the current sum is zero. Measurement data acquired between 26.3.2025 (10:00) and 27.3.2025 (10:00), on 7.4.2025, and between 10.5.2025 (22:00) and 11.5.2025 (15:00) were discarded due to electrochemical noise from the power supply network, which compromised the reliability of the results. The data were processed with R version 4.5.2, running RStudio 2026.01.1. Data are related to Figure 6, Figure 8 and Table 2 in paper [1]. - CMEA-CS-1_microCT.zip --- Description: Series of .tif files containing raw images of microCT reconstructed data for the CMEA-CS-1 sensor after exposure to a bentonite mixture in an oxic environment. The full raw data set and matadata are available from the author. Data relate to the CMEA-CS-3 sensor, as referred in paper [1]. - CMEA-CS-3_microCT.zip --- Description: Series of .tif files containing raw images of microCT reconstructed data for the CMEA-CS-3 sensor after exposure to a bentonite mixture in an oxic environment. The full raw data set and matadata are available from the author. Data relate to the CMEA-CS-3 sensor, as referred in paper [1]. - FE-SEM_analysis.zip --- Description: Series of .odt files exported from Aztec 5.1 software (Oxford Instruments) containing EDS analyses for various copper and carbon steel electrodes in CMEA-CS-1 and CMEA-CS-3 sensors after exposure to a bentonite mixture in an oxic environment. The .odt files represent different electrodes, such as C3, D1, and D2 for the CMEA-CS-1 sensor, and B1, C4, and D3 for the CMEA-CS-3 sensor. Data are shown in Figure 3, Figure 4, Figure 7 and Figure 8 in paper [1]. - FE-SEM_images.zip --- Description: Series of .tif files representing SEM images of various copper and carbon steel electrodes in CMEA-CS-1 and CMEA-CS-3 sensors after exposure to a bentonite mixture in an oxic environment. The .tif files represent different electrodes, such as C3, D1, and D2 for the CMEA-CS-1 sensor, and B1, C4, and D3 for the CMEA-CS-3 sensor.Data are shown in Figure 3, Figure 4, Figure 7 and Figure 8 in paper [1]. - SEM_analysis.zip --- Description: Series of .odt files containing EDS analysis for copper electrode C1 in the CMEA-CS-3 sensor after exposure to a bentonite mixture in an oxic environment, and EDS analyses for copper electrodes B1, C1, and D3 in the CMEA-CS-3 sensor after pickling of the corrosion products. Data are shown in Figure 8 and Figure 10 in paper [1]. - SEM_images.zip --- Description: Series of .jpg files containing SEM images of copper electrode C1 in the CMEA-CS-3 sensor after exposure to a bentonite mixture in an oxic environment, and SEM images of copper electrodes B1, C1, and D3 in the CMEA-CS-3 sensor after pickling of the corrosion products. Data are shown on Figure 8 and Figure 10 in paper [1]. - RAMAN_spectra.zip --- Description: Series of .txt (tab delimited) files of Raman spectra to identify the corrosion products formed on different copper and carbon steel electrodes for CMEA-CS-1 and CMEA-CS-3 sensors after exposure to a bentonite mixture in an oxic environment. The .txt files represent different spots on electrodes. The first column in the .txt files represents the Raman shift, and the second column represents the intensity of the Raman spectra. Data are related to the Raman spectra shown in Figures 3, 5, 7, and 9 in paper [1]. - RAMAN_CMEA-CS-1_El-C3.jpg --- Description: Image of Raman spectra of corrosion products formed on the C3 carbon steel electrode in the CMEA-CS-1 sensor after exposure to a bentonite mixture in an oxic environment. The image is related to the Raman spectra presented in Figure 3 in paper [1]. -------------------------- METHODOLOGICAL INFORMATION -------------------------- Descriptions of the methods used to collect or obtain the data, data processing methods, software information, standards and calibration data, and experimental conditions are provided in the Experimental section of the paper [1]. To analyze the micro-CT data, the electrodes must be positioned as shown in Figure 1. The full raw data sets and matadata for CMEA-CS-1 and CMEA-CS-3 sensors are available from the author upon a request. ------------------------------------- DATA-SPECIFIC INFORMATION: ------------------------------------- The CMEA-CS-1 sensor is a coupled multi-electrode array sensor consisting of 24 copper electrodes and 1 carbon steel electrode. The CMEA-CS-3 sensor is a coupled multi-electrode array sensor consisting of 22 copper electrodes and 3 carbon steel electrodes. The positions of the carbon steel electrodes are shown in Figure 1 in paper [1]. ------------------------------------- REFERENCES: ------------------------------------- [1] [Paper, to be added upon publication]