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<p>It is found out that the microhardness of a 3Ti–1.15Al powder mixture increases from 2.97 to 4.66 GPa with the duration of high-energy ball milling increasing from 1.5 to 7.5 min. During the formation of a nanostructured state, the ordered Ti<sub>3</sub>Al and TiAl compounds are observed to form, whose volume fractions increase with the processing duration. These peculiarities of the structural-phase transformation of the powder mixture are the main drivers of an increased microhardness under the processing conditions.</p>

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Microhardness of Ti-Al powder mixture depending on the duration of high-energy ball milling

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • D. A. Osipov,
  • V. D. Pasko,
  • I. A. Ditenberg

摘要

It is found out that the microhardness of a 3Ti–1.15Al powder mixture increases from 2.97 to 4.66 GPa with the duration of high-energy ball milling increasing from 1.5 to 7.5 min. During the formation of a nanostructured state, the ordered Ti3Al and TiAl compounds are observed to form, whose volume fractions increase with the processing duration. These peculiarities of the structural-phase transformation of the powder mixture are the main drivers of an increased microhardness under the processing conditions.