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<p>The aim is to investigate the cutting machining mechanism of FeCoCrNiAl high-entropy alloy after severe plastic deformation enhancement. The effects of factors such as rolling reduction on the cutting temperature, cutting force, and residual stress of FeCoCrNiAl high-entropy alloy were analyzed using the finite element method, and related verifications were conducted through experiments. The results indicate that an increase in cutting speed and cutting depth leads to a rise in cutting temperature, while an increase in reduction amount results in a decrease in cutting temperature. When the reduction amount is 1&#xa0;mm, an increase in cutting depth from 0.5 to 1&#xa0;mm leads to an approximately 192&#xa0;°C increase in temperature; the increase in cutting speed and cutting depth causes the cutting force to rise, with the cutting depth having a more significant impact on the cutting force. With a rolling reduction of 3&#xa0;mm and an increase in cutting depth from 0.5 to 1&#xa0;mm, the cutting force approximately doubles, and there is a negative correlation between cutting force and reduction amount. The residual compressive stress on the processed surface shows a significant negative correlation with cutting speed, while there is a significant positive correlation between cutting depth and residual compressive stress; the influence of rolling reduction on the residual compressive stress of the machined workpiece is mainly reflected in the depth of the residual stress layer.</p>

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Cutting Machining Mechanism of FeCoCrNiAl High-Entropy Alloy Strengthened by Severe Plastic Deformation

  • 期刊论文

  • 发表日期：

    2025年10月6日

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  • Ping Zhang,
  • Yajie Sun,
  • Jinlong Zhang,
  • Hanping Zhou,
  • Xiujie Yue

摘要

The aim is to investigate the cutting machining mechanism of FeCoCrNiAl high-entropy alloy after severe plastic deformation enhancement. The effects of factors such as rolling reduction on the cutting temperature, cutting force, and residual stress of FeCoCrNiAl high-entropy alloy were analyzed using the finite element method, and related verifications were conducted through experiments. The results indicate that an increase in cutting speed and cutting depth leads to a rise in cutting temperature, while an increase in reduction amount results in a decrease in cutting temperature. When the reduction amount is 1 mm, an increase in cutting depth from 0.5 to 1 mm leads to an approximately 192 °C increase in temperature; the increase in cutting speed and cutting depth causes the cutting force to rise, with the cutting depth having a more significant impact on the cutting force. With a rolling reduction of 3 mm and an increase in cutting depth from 0.5 to 1 mm, the cutting force approximately doubles, and there is a negative correlation between cutting force and reduction amount. The residual compressive stress on the processed surface shows a significant negative correlation with cutting speed, while there is a significant positive correlation between cutting depth and residual compressive stress; the influence of rolling reduction on the residual compressive stress of the machined workpiece is mainly reflected in the depth of the residual stress layer.