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<p>Magnesium alloy (AZ31B) composite is prepared with 3 wt% titanium diboride (TiB<sub>2</sub>) and 1–3 wt% nano silicon carbide (SiC) particles by using an ultrasonic-assisted stir-casting process. The microstructural quality of the AZ31B hybrid composite is enhanced by incorporating 1 % magnesium fluoride (MgF<sub>2</sub>) as a wettability agent. Microstructural behaviour of the AZ31B alloy and its composites is analyzed via transmission electron microscopy, revealing that the particles are homogeneous, with reduced gaps between them, leading to decreased agglomeration and porosity levels of less than 1 % in the composite. Furthermore, the effects of TiB<sub>2</sub> and nano SiC on the physical and mechanical properties of AZ31B alloy composites are investigated. The AZ31B/3 wt% TiB<sub>2</sub>/3 wt% SiC demonstrates significant improvements, including a density of 1.880 g/cm<sup>3</sup>, good impact toughness of 16.5 J/mm<sup>2</sup>, enhanced hardness of 104HV0.1, and impressive tensile stress behaviour of 318 MPa, all of which better the functional performance of the AZ31B alloy alone.</p>

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Nano silicon carbide particles and magnesium fluoride on characteristics of magnesium alloy hybrid nanocomposite

  • 期刊论文

  • 发表日期：

    2026年2月9日

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  • Shaik Gulam Abul Hasan,
  • N. Nagabhooshanam,
  • Pragati Gajbhiye,
  • Ankur Kulshreshta,
  • Indumathi S. M.,
  • A. Samyul,
  • Ramya Maranan,
  • T. Thirugnanasambandham,
  • S. Sathiyamurthy

摘要

Magnesium alloy (AZ31B) composite is prepared with 3 wt% titanium diboride (TiB2) and 1–3 wt% nano silicon carbide (SiC) particles by using an ultrasonic-assisted stir-casting process. The microstructural quality of the AZ31B hybrid composite is enhanced by incorporating 1 % magnesium fluoride (MgF2) as a wettability agent. Microstructural behaviour of the AZ31B alloy and its composites is analyzed via transmission electron microscopy, revealing that the particles are homogeneous, with reduced gaps between them, leading to decreased agglomeration and porosity levels of less than 1 % in the composite. Furthermore, the effects of TiB2 and nano SiC on the physical and mechanical properties of AZ31B alloy composites are investigated. The AZ31B/3 wt% TiB2/3 wt% SiC demonstrates significant improvements, including a density of 1.880 g/cm3, good impact toughness of 16.5 J/mm2, enhanced hardness of 104HV0.1, and impressive tensile stress behaviour of 318 MPa, all of which better the functional performance of the AZ31B alloy alone.