Laser deposition of aluminum and magnesium‑based alloys for repair and surface restoration of components

The results of studying the processes of laser deposition of aluminum and magnesium‑based alloys, the features of the structure of deposited layers using electron microscopy and X‑ray computed tomography data, measurements of microhardness after laser deposition of aluminum and magnesium alloys are presented. Modeling of the stress‑strain state of flat components during laser deposition of an aluminum‑magnesium alloy containing 0.6–0.95 % magnesium, 0.7–1.0 silicon, up to 0.3 titanium, up to 0.5 zinc, and up to 0.4 % manganese was performed. The nature of the distribution of deformations and stresses during the use of various technological schemes of laser deposition during surface treatment of aluminum‑magnesium alloys by laser deposition methods is established.

1. Liu T. S., Chen P., Qiu F. [et al.]. Review on laser directed energy deposited aluminum alloys. Int. J. Extrem. Manuf., 2024, vol. 6 (022004), p. 48.

2. Zhang S., Jiang J., Zou X. [et al.]. Progress of laser surface treatment on magnesium alloy. Front. Chem., 2022, vol. 10 (999630), p.16.

3. Tan C. Y., Wen C., Ang H. Q. Influence of laser parameters on the microstructures and surface properties in laser surface modification of biomedical magnesium alloys. Journal of Magnesium and Alloys, 2024, vol. 12, pp. 72–97.

4. Al-Kazzaz H., Cao X., Jahazi M., Medra M. Reliability of laser welding process for ZE41A‑T5 magnesium alloy sand castings. Materials Transactions, 2008, vol. 49, no. 4, pp. 774–781.

5. Chen J., Yu S., Yang J. [et al.] Research on the microstructure and mechanical properties of repaired 7N01 aluminum alloy by laser‑directed energy deposition with Sc modified Al‑Zn‑Mg. Metals, 2023, vol. 13, iss. 829, p. 13.

6. Nemenenok B. M., Rafalsky I. V., Lushchik P. E., Devoino O. G. Processy lazernogo osazhdeniya dlya remonta detalej iz alyuminij‑magnievyh splavov [Laser deposition processes for repairing parts made of aluminum‑magnesium alloys]. Litejnoe proizvodstvo i metallurgiya 2023. Belarus’: trudy 31 Mezhdunar. nauch.‑tekhn. konf. = Foundry and metallurgy 2023. Belarus: Proceedings 31st Int. scientific and technical conferences. Minsk, BNTU Publ., 2023, pp. 142–149.

7. Hermann F., Vogt S., Gobel M. [et al.] Laser metal deposition of AlSi10Mg with high build rates. Procedia CIRP 111, 12th CIRP Conference on Photonic Technologies, 4–8 September 2022, Fürth, pp. 210–213.

8. Gul A., Aslan O., Kayali E. S. [et al.] Assessing cast aluminum alloys with computed tomography defect metrics: a gurson porous plasticity approach. Metals, 2023, no. 13 (752), p. 20.

9. Simon M., Tiseanu I., Sauerwein C. [et al.]. Advanced computed tomography system for the inspection of large aluminium car bodies. NDT.net Issue, 2006, no. 11, 9 p.

10. Aldalura E., Suàreza A., Veiga F. [et al.]. Tomography analysis of Al–Mg alloys manufactured by wire‑arc directed energy deposition with different metal transfer modes. Alexandria Engineering Journal, 2023, no. 82, pp. 168–177.

11. Plevachuk Y. [et al.]. Thermophysical properties of some liquid binary Mg‑based alloys. J. Min. Metall. Sect. B‑Metall, 2017, vol. 53 (3) B, pp. 279–284.

12. Leitner M. [et al.]. Thermophysical properties of liquid aluminum. Metallurgical and Materials Transactions A, 2017, vol. 48A, pp. 3036–3045.