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Abstract <p>The Ti–Al alloys are widely favored by the aerospace industry for their excellent properties. Among them, TiAl<sub>3</sub> is notable for its low density (3.36 g/cm<sup>3</sup>), very high specific strength, and excellent high-temperature oxidation resistance. However, its low toughness and insufficient plasticity at room temperature greatly limit the practical applications of TiAl<sub>3</sub>. On the other hand, it has been found that TiAl<sub>3</sub> intermetallic compound powders have the potential to be used as wear-resistant layers, high-temperature corrosion-resistant thin-film materials, and reinforcing particles for metal matrix composites. In this paper, the TiAl<sub>3</sub> intermetallic compounds were successfully prepared by melting titanium and pellets with the molar ratio of 1&#xa0;:&#xa0;3. The powder was prepared by the high-energy ball milling by the bulk TiAl<sub>3</sub> prepared in the induction furnace. The influences of ball milling time, atmosphere and rotational speed on the ball milling efficiency were investigated to determine the optimal parameters based on the analysis of the particle size distribution after ball milling.</p>

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High-Efficient Preparation of TiAl3 Intermetallic Powder via Induction Melting and Ball Milling

  • 期刊论文

  • 发表日期：

    2025年2月1日

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  • Tengyu Wang,
  • DuanYan Shangguan,
  • Min Tan,
  • Tao Li,
  • Hui He,
  • Wen He,
  • Qian Yu

摘要

Abstract

The Ti–Al alloys are widely favored by the aerospace industry for their excellent properties. Among them, TiAl3 is notable for its low density (3.36 g/cm3), very high specific strength, and excellent high-temperature oxidation resistance. However, its low toughness and insufficient plasticity at room temperature greatly limit the practical applications of TiAl3. On the other hand, it has been found that TiAl3 intermetallic compound powders have the potential to be used as wear-resistant layers, high-temperature corrosion-resistant thin-film materials, and reinforcing particles for metal matrix composites. In this paper, the TiAl3 intermetallic compounds were successfully prepared by melting titanium and pellets with the molar ratio of 1 : 3. The powder was prepared by the high-energy ball milling by the bulk TiAl3 prepared in the induction furnace. The influences of ball milling time, atmosphere and rotational speed on the ball milling efficiency were investigated to determine the optimal parameters based on the analysis of the particle size distribution after ball milling.