Al-Si合金溶湯鍛造材の高温衝撃強さ
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概要
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Al-Si alloys containing Si 4 to 20% were solidified in a permanent mold under hydraulic pressure up to 3000kgf/cm2. The impact strength at elevated temperatures is lowered in the alloys containing more of silicon. The impact strength particularly of hypoeutectic alloys is heightened in accordance with temperatures significantly above 300°C. The hypoeutectic squeeze castings allow width spread beneath the notch particularly at elevated temperatures. Both the hypoeutectic and eutectic squeeze castings show a ductile fracture on which dimples are found. The hypereutectic squeeze castings usually show a cleavage fracture. The alloys soliaified under atmospheric pressure show a cleavage fracture regardless of silicon contents and temperatures.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
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- Undercooling and solidification behavior of fluid clumps of second-poured melt of hypereutectic Al-Si alloy in Duplex Casting process.
- Change in apparent viscosity of stirred slurry during production of semi-solid hypereutectic Al-Si alloy by slurry-melt mixing process.