Dataset on the Creep Properties of EN AW-2618A Aluminum Alloy in the T61 and an overaged condition

This publication contains comprehensive metadata and test results of constant force creep tests according to DIN EN ISO 204 on the aluminum alloy EN AW-2618A in the T61 condition (8 h/530 °C/quenching in boiling water followed by 28 h/195 °C/air cooling) and in an overaged condition (T61 + 1.000 h/190 °C). The test temperatures cover 160 °C, 180 °C, 190 °C, and 230 °C, and the initial stresses range between 40 MPa and 290 MPa. The tests were carried out in an ISO 17025 accredited test laboratory. The investigated material and the applied methods are described in detail in [1-2]. All specimens tested came from the same batch of material.

The data are provided using v1.1 of the “NFDI-MatWerk/IUC02 Data schema for creep data of Ni-based superalloys, including a comprehensive documentation of test results and metadata” [3] as a template for data documentation and structuring.

The provided XLSX file, titled “2025-06_Data-Schema_Creep_v1.1_EN AW 2618_v1.0.xlsx”, includes a data schema (see worksheet “Data-Schema-Creep_v1.1”), along with additional worksheets named according to their respective test IDs. In each of these test-specific worksheets, column K contains the responses corresponding to the individual schema entries listed in column F. Some of these responses refer to other worksheets within the same XLSX file, which contain relevant metadata or test results.

In addition, *.LIS files (in ASCII format) are provided. These files include a header section containing selected mandatory metadata and test results, followed by the required data series (time, creep strain/percentage creep extension).

A PDF document includes the technical drawing of the test piece geometries.

All numerical data on test results given in the XLSX file follow the decimal point conventions specified in DIN EN ISO 204:2019-4, aligned with the resolution of the measurement instruments used. The measurement uncertainties for test temperature (T), initial stress (R₀), and percentage extensions (e) were determined following CWA 15261-3:2005[4].

Please remember to cite this work if the data is used in a scientific publication.

Related datasets for the material include:

• Rockenhäuser, C., Han, Y., Hartrott, P. von, Skrotzki, B. (2023). Brinell-Hardness (HBW 2.5/62.5) of Al-alloy EN AW-2618A after different aging times and temperatures (2.0) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.10396823
• Hartrott, P. von, Skrotzki, B. (2023). Room temperature and elevated temperature tensile test and elastic properties data of Al-alloy EN AW-2618A after different aging times and temperatures (1.0) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.10377164
• Rockenhäuser, C., Skrotzki, B. (2024). Radii of S-phase Al2CuMg in Al-alloy EN AW-2618A after different aging times at 190°C (1.2) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.10970081
• Han, Y., Markötter, H., Fritsch, T., Skrotzki, B. (2024). Segmented primary phases of Al-alloy EN AW-2618A in the T61 state using synchrotron computed tomography (1.0). Zenodo. https://doi.org/10.5281/zenodo.12730718

Acknowledgment

We would like to thank the company Otto Fuchs KG for providing the forged blanks for this investigation.

The authors would like to thank the Research Association for Combustion Engines (FVV, Frankfurt) for selecting this research project. This work was supported by the German Federal Ministry of Economic Affairs and Energy (BMWi), the German Federal Ministry of Economic Affairs and Climate Action (BMWK), and the German Federation of Industrial Research Associations (AiF) (IGF-No. 17734 and 20850 N).

Part of this work has been supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - project number 460247524.

References

[1] C. Rockenhäuser, P. von Hartrott, M. Metzger, J. Karlin, B. Skrotzki, C. Schweizer, Lebensdauerberechnung von Aluminium-Radialverdichterrädern unter Berücksichtigung der Werkstoffalterung. Forschungsvereinigung Verbrennungskraftmaschinen e.V.; Report 1150, Frankfurt/Main, 2018

[2] J. Radner, Y. Han, P. von Hartrott, B. Skrotzki, Aluminium Hochtemperaturermüdung - Rechnerische Bewertung der Betriebsfestigkeit von Aluminium bei höchsten Anwendungstemperaturen unter Berücksichtigung anwendungsspezifischer Einflussgrößen. Forschungsvereinigung Verbrennungskraftmaschinen e.V.; Report 1341, Frankfurt/Main, 2023

[3] Ávila Calderón, L. A., Shakeel, Y., Schriever, S., Gedsun, A., Forti, M., Jordan, H., Han, Y., Baer, O., Aversa, R., Olbricht, J., Hammerschmidt, T., Hickel, T., & Skrotzki, B. (2024). NFDI-MatWerk/IUC02 Data schema for creep data of Ni-based superalloys including a comprehensive documentation of test results and metadata (1.1). Zenodo. https://doi.org/10.5281/zenodo.13820070

[4] CWA 15261-3:2005, Measurement uncertainties in mechanical tests on metallic materials — The evaluation of uncertainties in creep testing, European Committee for Standardization, Brussels, 2005