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<p>The thermophysical properties of ferritic spheroidal graphite iron castings with varying nodule sizes were investigated. Nodule size in the sample castings was controlled by utilizing sand molds and permanent molds. Carbon and silicon contents were adjusted to target ranges of 3.40–3.70% and 1.30–3.20%, respectively. The results revealed that smaller nodule sizes enhanced thermal conductivity in castings with lower silicon content. However, this effect was negligible when the silicon content exceeded 2.30%.</p>

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Thermal Properties of Ultrafine Spheroidal Graphite Iron Castings

  • 期刊论文

  • 发表日期：

    2025年6月18日

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  • Yuuki Kuramoto,
  • Yutaka Miyamoto,
  • Haruki Itofuji,
  • Masayuki Itamura

摘要

The thermophysical properties of ferritic spheroidal graphite iron castings with varying nodule sizes were investigated. Nodule size in the sample castings was controlled by utilizing sand molds and permanent molds. Carbon and silicon contents were adjusted to target ranges of 3.40–3.70% and 1.30–3.20%, respectively. The results revealed that smaller nodule sizes enhanced thermal conductivity in castings with lower silicon content. However, this effect was negligible when the silicon content exceeded 2.30%.