Brinell-Hardness data (HBW 2.5/62.5) of aluminum alloy EN AW-2618A after different aging times and temperatures

Rockenhäuser, Christian; Hartrott, Philipp von; Skrotzki, Birgit

doi:10.1016/j.dib.2022.108830

Cited by 3 publications

(3 citation statements)

References 3 publications

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“…where P b = 100 kgf is the load on the indenting tool, D s = 1.59 mm is the diameter of the steel ball, and d I = 1.19 mm is the measured diameter at the rim of indentation. This value fell into the range of 50-140, as measured by Rockenhäuser [14] and Ali [28]. Compared with H 5 4 , the percentage difference was −3.37%.…”

Section: Hardness Estimation and Brinell Testmentioning

confidence: 57%

“…is the measured diameter at the rim of indentation. This value fell into the range of 50-140, as measured by Rockenhäuser [14] and Ali [28]. Compared with 5 4 H , the percentage difference was −3.37%.…”

Section: Hardness Estimation and Brinell Testmentioning

confidence: 58%

“…The influence of the tool pin shape on the contact intensity was studied. The hardness of the forged precipitation-hardened aluminum alloy EN AW-2618A for different aging times and temperatures was obtained by Rockenhäuser et al [14]. The Brinell hardness number was computed by DIN EN 6506-1 [15].…”

Section: Introductionmentioning

confidence: 99%

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Young’s Modulus and Hardness Identification of Extruded Aluminum by Scratching Damper

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A special vibration damper is proposed for Young’s modulus and hardness identification through a scratching process on extruded aluminum. This paper presents the design and working principle of a scratching damper based on a scratching device. A non-contact electromagnetic shaker is used to generate the shaking force for test sample vibration. The required forces on the scratched material during the scratching process are generated by an adjustable compression spring. The proposed damper is designed and tested on an extruded aluminum 3004 sample for the determination of its Young’s modulus and hardness, and validation is performed using the standard test instruments. The physical dimensions of the scratching tracks are measured using a microscope and utilized to compute the scratching energy factor. Load curves are obtained at different divisions of the scratching process. The loop energy during the scratching process of the tested object is measured and used for the determination of sample material properties. Furthermore, the energy conservation law, scratch energy release rate of semi-conical scratch head, and loop energy release rate are established to determine the Young’s modulus and hardness of the sample. Their estimation accuracies are evaluated. The proposed method has several advantages over the traditional methods, including low cost, directness, and high repeatability. The results suggest this to be used as an alternative to the standard modulus and hardness tester.

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Section: Hardness Estimation and Brinell Testmentioning

confidence: 57%

Section: Hardness Estimation and Brinell Testmentioning

confidence: 58%

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Young’s Modulus and Hardness Identification of Extruded Aluminum by Scratching Damper

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Enhancing Reproducibility in Precipitate Analysis: A FAIR Approach with Automated Dark-Field Transmission Electron Microscope Image Processing

Zia,

Hanke,

Skrotzki

et al. 2024

Integr Mater Manuf Innov

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High-strength aluminum alloys used in aerospace and automotive applications obtain their strength through precipitation hardening. Achieving the desired mechanical properties requires precise control over the nanometer-sized precipitates. However, the microstructure of these alloys changes over time due to aging, leading to a deterioration in strength. Typically, the size, number, and distribution of precipitates for a quantitative assessment of microstructural changes are determined by manual analysis, which is subjective and time-consuming. In our work, we introduce a progressive and automatable approach that enables a more efficient, objective, and reproducible analysis of precipitates. The method involves several sequential steps using an image repository containing dark-field transmission electron microscopy (DF-TEM) images depicting various aging states of an aluminum alloy. During the process, precipitation contours are generated and quantitatively evaluated, and the results are comprehensibly transferred into semantic data structures. The use and deployment of Jupyter Notebooks, along with the beneficial implementation of Semantic Web technologies, significantly enhances the reproducibility and comparability of the findings. This work serves as an exemplar of FAIR image and research data management.

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Hardness specification of structural steel used in the Republic of Kazakhstan

Kulbayev,

Lapin,

Tuleyev

et al. 2023

E3S Web of Conf.

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Monitoring was conducted for the structural steel types used in the Republic of Kazakhstan for construction of buildings using the metal frames. For each type of steel it was the first time determined for hardness specification by Brinell methods. Hardness specification is applied to determine the yield strength, breaking strength and the relative deformation at rupture. These parameters of structural steel are considered to determine compliance with requirements of the National Annex of the Republic of Kazakhstan Eurocode 1993, which is used to design metal structures in the Republic of Kazakhstan. Previously, such issues have not been solved yet. Practical significance of the work consists in possibility of using local types of steel for design according to Eurocode 1993.

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Brinell-Hardness data (HBW 2.5/62.5) of aluminum alloy EN AW-2618A after different aging times and temperatures

Cited by 3 publications

References 3 publications

Young’s Modulus and Hardness Identification of Extruded Aluminum by Scratching Damper

Young’s Modulus and Hardness Identification of Extruded Aluminum by Scratching Damper

Enhancing Reproducibility in Precipitate Analysis: A FAIR Approach with Automated Dark-Field Transmission Electron Microscope Image Processing

Hardness specification of structural steel used in the Republic of Kazakhstan

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