Scholarlink

<p>The present research on the production of a magnesium alloy composite with a constant % of boron carbide (B<sub>4</sub>C) and different % of alumina (Al<sub>2</sub>O<sub>3</sub>) nanoparticles via the squeeze-stir casting route was evaluated for microstructure, stress–strain, hardness, and thermal stability characteristics. A total of five composite samples were prepared under an argon gas shield to limit oxidation, and the rated stir speed and the applied squeeze action provided a strong bond with the base matrix, which was confirmed through a scanning electron microscope. The elements were analyzed with energy-dispersive x-ray spectroscopy. The grain size results indicated a decrease from 85&#xa0;μm for the as-cast AM60 to 34&#xa0;μm for Sample 5, corresponding to a 60% efficiency in grain refining. With effective processing, the composites’ tensile strength, hardness, thermal stability, and wear rate were progressively improved. The magnesium alloy (AM60/2 wt.% B<sub>4</sub>C/3 wt.% Al<sub>2</sub>O<sub>3</sub>) was found to have a reduced grain size, optimum ultimate tensile and yield stress (196&#xa0;MPa and 292&#xa0;MPa), a marginal reduction in strain percentage (4.7 %), an enhanced hardness value (108 HV), a higher thermal stability, and better wear resistance than other samples. We will recommend this composite for automotive powertrain housing applications.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Influences of Oxide Nanoparticles on Microstructural and Thermomechanical Behavior of AM60 Alloy Composite Featured with Boron Carbide

  • 期刊论文

  • 发表日期：

    2026年4月22日

查看全文
  • Madaminov Sanjarbek Maxmudjon Ugli,
  • N. Nagabhooshanam,
  • Prahalad Singh Parihar,
  • Nilesh Bhosle,
  • S. Supriya,
  • V. S. N. Kumar,
  • Ramya Maranan,
  • R. Venkatesh,
  • Barun Haldar

摘要

The present research on the production of a magnesium alloy composite with a constant % of boron carbide (B4C) and different % of alumina (Al2O3) nanoparticles via the squeeze-stir casting route was evaluated for microstructure, stress–strain, hardness, and thermal stability characteristics. A total of five composite samples were prepared under an argon gas shield to limit oxidation, and the rated stir speed and the applied squeeze action provided a strong bond with the base matrix, which was confirmed through a scanning electron microscope. The elements were analyzed with energy-dispersive x-ray spectroscopy. The grain size results indicated a decrease from 85 μm for the as-cast AM60 to 34 μm for Sample 5, corresponding to a 60% efficiency in grain refining. With effective processing, the composites’ tensile strength, hardness, thermal stability, and wear rate were progressively improved. The magnesium alloy (AM60/2 wt.% B4C/3 wt.% Al2O3) was found to have a reduced grain size, optimum ultimate tensile and yield stress (196 MPa and 292 MPa), a marginal reduction in strain percentage (4.7 %), an enhanced hardness value (108 HV), a higher thermal stability, and better wear resistance than other samples. We will recommend this composite for automotive powertrain housing applications.