ＡＣ４Ｃアルミニウム合金の機械的性質に及ぼす凝固条件の影響

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タイトル別名
  • Effect of solidification conditions on mechanical properties of directionally soilidified 356 aluminum alloy.
  • AC4C アルミニウム ゴウキン ノ キカイテキ セイシツ ニ オヨボス ギョ

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抄録

Solidification conditions and mechanical properties of unidirectionally solidified 356 alloy were studied by means of stepwise regression analysis. The elongation of as-cast alloy is strongly affected by average cooling velocity in the solidification range and temperature gradient. 0.2% proof stress is negatively affected by temperature gradient and moving velocity of solid-liquid interface. Partial cooling velocity from liquidus to the temperature at which 40% volume fraction of solid has solidified has a significant effect on ultimate tensile strength, Brinell hardness, maximum load, crack initiation and propagation energy, and total absorbed energy in instrumented impact test. As to T6 treated castings, partial cooling velocity has an effect on tensile and impact properties except maximum load. Maximum load, crack initiation energy and total absorbed energy are strongly affected by moving velocity of solid-liquid interface.

収録刊行物

  • 軽金属

    軽金属 37 (4), 268-276, 1987

    一般社団法人 軽金属学会

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