微量ほう素含有球状黒鉛鋳鉄の組織と機械的性質に及ぼすすず添加の影響

書誌事項

タイトル別名
  • Effects of Tin Addition on Microstructure and Mechanical Properties of Spheroidal Graphite Cast Iron Containing Small Amount of Boron
  • ビリョウ ホウソ ガンユウ キュウジョウ コクエン チュウテツ ノ ソシキ ト キカイテキ セイシツ ニ オヨボス スズテンカ ノ エイキョウ

この論文をさがす

抄録

A small amount of boron in spheroidal graphite cast iron has been reported to decrease the hardness as well as the pearlite matrixes in pearlitic ductile cast iron. The pearlite content in spheroidal graphite cast iron can be increased by the addition of pearlite promoting alloying elements such as tin. This research was conducted to determine the effects of the tin addition on the mechanical properties and microstructure of spheroidal graphite cast iron containing 50ppm boron. All pearlite matrixes can be achieved by the addition of 0.4% tin. 0.05-0.2% tin addition exhibited greater tensile strength and hardness compared to ductile cast iron not containing boron and tin. In this research, we investigated the tin rich cementite layer on the surface of the graphite nodule, assumed to serve as the barrier to carbon diffusion to the graphite, which is thought to promote pearlite formation during eutectoid transformation.

収録刊行物

  • 鋳造工学

    鋳造工学 82 (1), 23-28, 2010

    公益社団法人 日本鋳造工学会

参考文献 (7)*注記

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ