結晶粒径あるいは凝固温度範囲の異なる銅―すず合金の鋳造割れ感受性

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タイトル別名
  • Hot Tearing in Cu-Sn Alloys in Relation to the Freezing Range and Solidification Structure
  • ケッショウ リュウケイ アルイハ ギョウコ オンド ハンイ ノ コトナル ドウ

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抄録

  Ring mold hot tearing test was conducted on the binary Cu-Sn alloys containing Sn 0 to 15% and on the ternary Cu-Sn-Zr alloys. The maximum frequency of hot tearing was found in the Cu-2%Sn alloy which has the most extended freezing temperature range under practical freezing conditions. Modification of hot tearing was attained by Zr grain refining. The tendency to hot tearing is governed to a greater degree by the extent of the “semi-solid temperature range” from the temperature at which contraction practically starts down to actual solidus. The semi-solid temperature range depends on the whole freezing temperature range and solidification structure.

収録刊行物

  • 鋳物

    鋳物 51 (8), 485-489, 1979

    公益社団法人 日本鋳造工学会

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