Application of Glow Discharge Atomic Emission Spectrometry to Layer-by-Layer Analysis of Zinc-Coated Steels.
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| Title: | Application of Glow Discharge Atomic Emission Spectrometry to Layer-by-Layer Analysis of Zinc-Coated Steels. |
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| Authors: | Lepilina, M. Yu.1 (AUTHOR) masha-pavlova4898@mail.ru, Yakubenko, E. V.1 (AUTHOR), Ermolaeva, T. N.1 (AUTHOR), Baranovskaya, V. B.2 (AUTHOR) |
| Source: | Journal of Analytical Chemistry. Jun2026, Vol. 81 Issue 6, p1025-1035. 11p. |
| Subjects: | Glow discharges, Depth profiling, Zinc alloys, Galvanized steel, Calibration, Sputtering (Physics), Metallurgical analysis, Alloys |
| Abstract: | A procedure for layer-by-layer analysis of zinc coatings on rolled steel products has been developed to determine the concentrations of regulated alloying elements within the following ranges: Mg 0.03–5.04%, Al 0.07–12.4%, Si 0.06–0.27%, Fe 0.7–98.0%, Cu 0.2–5.95%, Zn 80.0–99.0%, Sn 0.01–0.50%, and Pb 0.003–2.07%, in accordance with the requirements of TU 24.43.12-018-00194228-2021. To ensure uniform cathodic sputtering of the material under investigation, the parameters of the glow discharge plasma were experimentally selected, specifically a power of 40 W and a pressure of 700 Pa. Calibration curves in the coordinates of emission intensity versus element concentration multiplied by the sputtering rate were constructed using standard samples of zinc alloys: TsAM9-1.5, TsAM10-5, TsAM9-1.5L, TsAM10-5L, TsAM9-1.5ch, TsAM10-5ch (set M28), TsF4, TsA4o (set M92), TsAM9-1.5 (set M160); 41XZ3: IMPURITIES IN ZINC (CAST), and pure iron 098. The relative sputtering rates of the standard samples, enabling the acquisition of depth profiles of elemental distribution in the coordinates concentration (c, %) versus depth (h, µm), were calculated taking into account the depth of cathodic etching measured using a profilometer. The necessity of correcting the calibration curves using a set of mathematical algorithms based on the weighted least squares method and uncertainty metrics is demonstrated. The accuracy of determining the concentrations of Mg, Al, Si, Cu, Sn, and Pb was evaluated using Student's t-test, and optimal values of the glow discharge plasma operating parameters, as well as the conditions for applying the set of mathematical algorithms for calibration curve correction, were established. The procedure was validated using industrial samples of rolled steel with zinc–aluminum–magnesium coatings and is recommended for use in laboratories of metallurgical enterprises. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
| Abstract: | A procedure for layer-by-layer analysis of zinc coatings on rolled steel products has been developed to determine the concentrations of regulated alloying elements within the following ranges: Mg 0.03–5.04%, Al 0.07–12.4%, Si 0.06–0.27%, Fe 0.7–98.0%, Cu 0.2–5.95%, Zn 80.0–99.0%, Sn 0.01–0.50%, and Pb 0.003–2.07%, in accordance with the requirements of TU 24.43.12-018-00194228-2021. To ensure uniform cathodic sputtering of the material under investigation, the parameters of the glow discharge plasma were experimentally selected, specifically a power of 40 W and a pressure of 700 Pa. Calibration curves in the coordinates of emission intensity versus element concentration multiplied by the sputtering rate were constructed using standard samples of zinc alloys: TsAM9-1.5, TsAM10-5, TsAM9-1.5L, TsAM10-5L, TsAM9-1.5ch, TsAM10-5ch (set M28), TsF4, TsA4o (set M92), TsAM9-1.5 (set M160); 41XZ3: IMPURITIES IN ZINC (CAST), and pure iron 098. The relative sputtering rates of the standard samples, enabling the acquisition of depth profiles of elemental distribution in the coordinates concentration (c, %) versus depth (h, µm), were calculated taking into account the depth of cathodic etching measured using a profilometer. The necessity of correcting the calibration curves using a set of mathematical algorithms based on the weighted least squares method and uncertainty metrics is demonstrated. The accuracy of determining the concentrations of Mg, Al, Si, Cu, Sn, and Pb was evaluated using Student's t-test, and optimal values of the glow discharge plasma operating parameters, as well as the conditions for applying the set of mathematical algorithms for calibration curve correction, were established. The procedure was validated using industrial samples of rolled steel with zinc–aluminum–magnesium coatings and is recommended for use in laboratories of metallurgical enterprises. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 10619348 |
| DOI: | 10.1134/S1061934826700474 |
