Research Article

Microstructure, Thermal and Mechanical Properties of Novel Nanocrystalline Al-B-Si Alloy

Volume: 14 Number: 2 August 31, 2025

Microstructure, Thermal and Mechanical Properties of Novel Nanocrystalline Al-B-Si Alloy

Abstract

In this study, a nanostructured Al50B45Si5 alloy was produced by the mechanical alloying technique from mixtures of high-purity Al, B, and Si powders. The thermal behavior, structural evolution, and mechanical properties of the powders were examined through X-ray diffraction (XRD), scanning electron microscopy-energy dispersive X-ray (SEM-EDX), differential scanning calorimetry (DSC), differential thermal analysis (DTA), transmission electron microscopy (TEM), and Vickers microhardness measurements. The XRD results revealed that all crystalline peaks belonging to the Al, B, and Si elements disappeared during mechanical alloying and were eventually replaced by peaks from intermetallic phases such as AlB2, B4Si, and AlB12 in the supersaturated Al(Si) matrix. The crystalline size of the Al50B45Si5 alloy was calculated by the Debye Scherrer equation, and it was determined to be 9.5 nm, consistent with TEM measurements. The microhardness value of the alloy was 219±10 HV, while the hardness increased to 345±9 HV with heat treatment. Therefore, a nanostructured Al50B45Si5 alloy with high hardness, good thermal stability, and homogeneity was favorably synthesized by mechanical alloying for use in industrial applications.

Keywords

Al alloys, nanocrystalline, microhardness, mechanical alloying, TEM

Supporting Institution

Kahramanmaras Sutcu Imam University

Thanks

I greatly appreciate the financial support from Kahramanmaras Sutcu Imam University. I would like to thank F. S. Uludag for assistance to draw Fig. 3 and 4.

References

  1. T. Xu, D. Zuo, G. Zhang, Modeling of anisotropic fracture forming limit strain for high-strength aluminum alloys in sheet metal forming, Materials Today Communications 47 (2025) 113012.
  2. J. Min, F. Xie, Y. Liu, Z. Hou, J. Lu, J. Lin, Experimental study on cold forming process of 7075 aluminum alloy in W temper, CIRP Journal of Manufacturing Science and Technology 37 (2022) 11–18.
  3. L. Pezzato, M. Dabala, K. Brunelli, Microstructure and corrosion properties of PEO coatings produced on AM-aluminum alloys, Key Engineering Materials 813 (2019) 298–303.
  4. A. Mahabubadsha, K. Anandavelu, Exploring the impact of AGG on the strength of AA2014 aluminium alloy FSW joints, Emerging Materials Research 14 (2) (2025) 190–197.
  5. Zulfadhli, A. Akhyar, N. Ali, Arhami, M. R. Pahlevi, Variations in casting temperatures effect of re-melted 6061 aluminum alloy on tensile strength, Results in Materials 26 (2025) 100691.
  6. Y. Sun, In-fire material properties of wire-arc additively manufactured 3D-printed structural aluminum alloys, Construction and Building Materials 474 (2025) 140946.
  7. A. D. Iams, J.S. Wweaver, B.M. Lane, L.A. Giannuzzi, F. Yi, D.L. LaPlant, J.H. Martin, F. Zhang, Microstructural features and metastable phase formation in a high-strength aluminum alloy fabricated using additive manufacturing, Journal of Alloys and Compounds 1025 (2025) 180281.
  8. S. Çağlar, Impact of B4C reinforcement on the microstructure, wear, hardness, corrosion behavior, and radiation shielding properties of Al-40Sm2O3 hybrid composites, Nuclear Engineering and Technology 57 (8) (2025) 103566.
  9. C. Kursun, M. Gogebakan, Characterization of nanostructured Mg–Cu–Ni powders prepared by mechanical alloying, Journal of Alloys and Compounds 619 (2015) 138–144.
  10. Y. K. Yadav, M. A. Shaz, N. K. Mukhopadhyay, T. P. Yadav, High entropy alloys synthesized by mechanical alloying: A review, Journal of Alloys and Metallurgical Systems 9 (2025) 100170.
APA
Kurşun, C. (2025). Microstructure, Thermal and Mechanical Properties of Novel Nanocrystalline Al-B-Si Alloy. Journal of New Results in Science, 14(2), 189-200. https://doi.org/10.54187/jnrs.1707677
AMA
1.Kurşun C. Microstructure, Thermal and Mechanical Properties of Novel Nanocrystalline Al-B-Si Alloy. JNRS. 2025;14(2):189-200. doi:10.54187/jnrs.1707677
Chicago
Kurşun, Celal. 2025. “Microstructure, Thermal and Mechanical Properties of Novel Nanocrystalline Al-B-Si Alloy”. Journal of New Results in Science 14 (2): 189-200. https://doi.org/10.54187/jnrs.1707677.
EndNote
Kurşun C (August 1, 2025) Microstructure, Thermal and Mechanical Properties of Novel Nanocrystalline Al-B-Si Alloy. Journal of New Results in Science 14 2 189–200.
IEEE
[1]C. Kurşun, “Microstructure, Thermal and Mechanical Properties of Novel Nanocrystalline Al-B-Si Alloy”, JNRS, vol. 14, no. 2, pp. 189–200, Aug. 2025, doi: 10.54187/jnrs.1707677.
ISNAD
Kurşun, Celal. “Microstructure, Thermal and Mechanical Properties of Novel Nanocrystalline Al-B-Si Alloy”. Journal of New Results in Science 14/2 (August 1, 2025): 189-200. https://doi.org/10.54187/jnrs.1707677.
JAMA
1.Kurşun C. Microstructure, Thermal and Mechanical Properties of Novel Nanocrystalline Al-B-Si Alloy. JNRS. 2025;14:189–200.
MLA
Kurşun, Celal. “Microstructure, Thermal and Mechanical Properties of Novel Nanocrystalline Al-B-Si Alloy”. Journal of New Results in Science, vol. 14, no. 2, Aug. 2025, pp. 189-00, doi:10.54187/jnrs.1707677.
Vancouver
1.Celal Kurşun. Microstructure, Thermal and Mechanical Properties of Novel Nanocrystalline Al-B-Si Alloy. JNRS. 2025 Aug. 1;14(2):189-200. doi:10.54187/jnrs.1707677