Scholarlink

<p>In this present work, highly porous steels manufactured through leachable space holder powder metallurgy technique containing different amount of carbon (0, 0.2, 0.4, 0.8, and 1.6 wt%) are studied. The microstructure of cell walls is studied using optical microscopy and scanning electron microscopy equipped energy dispersive X-ray spectroscopy. In addition, the compression tests are conducted on highly porous steels. The results demonstrate the highly porous steels have spherical shape porosities in the range of 81.17–83.94%, which increase with the increment in the carbon content. Also, the higher amounts of carbon cause the thickness of cell walls and surface fraction of cells decrease and increase, respectively. It backs to the presence of more pearlite on the surface fraction, and in the specimen containing 1.6 wt% C, iron carbide phase is revealed in the boundaries of agglomerated iron particles. By increasing the amount of carbon up to 0.8 wt%, the mechanical properties first show an improvement and after that decreases.</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

Effects of Carbon Content on the Porosity, Microstructure, and Mechanical Properties of Highly Porous Steels

  • 期刊论文

  • 发表日期：

    2025年8月13日

查看全文
  • Hadi Nasiri,
  • Hamid Sazegaran

摘要

In this present work, highly porous steels manufactured through leachable space holder powder metallurgy technique containing different amount of carbon (0, 0.2, 0.4, 0.8, and 1.6 wt%) are studied. The microstructure of cell walls is studied using optical microscopy and scanning electron microscopy equipped energy dispersive X-ray spectroscopy. In addition, the compression tests are conducted on highly porous steels. The results demonstrate the highly porous steels have spherical shape porosities in the range of 81.17–83.94%, which increase with the increment in the carbon content. Also, the higher amounts of carbon cause the thickness of cell walls and surface fraction of cells decrease and increase, respectively. It backs to the presence of more pearlite on the surface fraction, and in the specimen containing 1.6 wt% C, iron carbide phase is revealed in the boundaries of agglomerated iron particles. By increasing the amount of carbon up to 0.8 wt%, the mechanical properties first show an improvement and after that decreases.