Macroscopic segregation in Al-11 mass%Si slloy containing 2 mass%Fe solidified under centrifugal force.

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  • 凝固中に遠心力を作用させた２％Ｆｅを含むＡ－ｌｌ％Ｓｉ合金のマクロ偏析
  • 凝固中に遠心力を作用させた2%Feを含むAl-11%Si合金のマクロ偏析
  • ギョウコチュウ ニ エンシンリョク オ サヨウサセタ 2パーセント Fe オ

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Abstract

In order to reduce iron content in aluminum alloys, a technique has been tried to segregate and separate intermetallic compounds containing iron by applying centrifugal force during solidification. The castings solidified under centrifugal force have shown obvious macroscopic segregation. The iron content decreases in the inner part of cast ingot from 2.07 mass% to 0.27 mass% due to the centrifugal force and the reduction ratio of iron has reached 87%. Thus, the utilization of this segregation phenomenon is a possible way of removal of the iron in aluminum alloys.

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