過共晶アルミニウム‐けい素合金の初晶けい素微細化に及ぼすりん酸塩フラックスといおうの添加の影響

書誌事項

タイトル別名
  • Effect of phosphate flux and sulfur additions on refinement of primary silicon crystals in hypereutectic Al-Si casting alloys.
  • カキョウショウ アルミニウム ケイソ ゴウキン ノ ショ ショウ ケイソ ビサ

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抄録

1% of phosphate mainly containing (NaPO3)6 (P-flux) and P-flux with S 0.05 to 1%, K2S 1%, P2S5 1%, ZnS 1% or V 0.4% were introduced into molten Al-20%Si and JIS-AC9B alloys. Supplementally introducing sulfur 0.1 to 0.2% successively after P-fluxing is preferable to single addition of P-flux and combined additions of P-flux and P2S5, ZnS or V. EPMA shows that supplementally added sulfur segregates in nucleating AlP particles in primary Si crystals. Sulfur has an effect on the nucleation behavior of AlP nuclei.

収録刊行物

  • 軽金属

    軽金属 37 (8), 517-523, 1987

    一般社団法人 軽金属学会

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