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<p>The paper studies the structure and phase composition of materials fabricated by direct laser deposition using Al-TiB<sub>2</sub> composite powder obtained by self-propagating high-temperature synthesis (SHS). The fabricated specimens inherit the structure of the SHS-produced powder and consist of the aluminum matrix and TiB<sub>2</sub> ceramic particles. The powder consumption ranging from 5.1&#xa0;to 7.5 g/min, leads to a&#xa0;change in the size of the coherent scattering region of Al and TiB<sub>2</sub> phases, and the average size of ceramic particles in the material structure. It is shown that consuming 5 g/min of the powder, the high dense microstructure can be obtained with the lowest number of isolated pores.</p>

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Structure and phase composition of materials fabricated by direct laser deposition using Al-TiB2 composite powder

  • 期刊论文

  • 发表日期：

    2025年3月1日

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  • A. E. Matveev,
  • V. V. Promakhov,
  • N. A. Schulz,
  • V. R. Bakhmat,
  • T. E. Turanov,
  • O. G. Klimova-Korsmik

摘要

The paper studies the structure and phase composition of materials fabricated by direct laser deposition using Al-TiB2 composite powder obtained by self-propagating high-temperature synthesis (SHS). The fabricated specimens inherit the structure of the SHS-produced powder and consist of the aluminum matrix and TiB2 ceramic particles. The powder consumption ranging from 5.1 to 7.5 g/min, leads to a change in the size of the coherent scattering region of Al and TiB2 phases, and the average size of ceramic particles in the material structure. It is shown that consuming 5 g/min of the powder, the high dense microstructure can be obtained with the lowest number of isolated pores.