NUMERICAL SIMULATION OF ALLOY SOLIDIFICATION BY A TWO－PHASE MODEL

Acta Metall Sin

1994, Vol. 30

Issue (21): 385-392 DOI:

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NUMERICAL SIMULATION OF ALLOY SOLIDIFICATION BY A TWO－PHASE MODEL

NI Jun; BECKERMANN Christoph(Department of Mechanical Engineering;TheUniversity of Iowa; USA)

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NI Jun; BECKERMANN Christoph(Department of Mechanical Engineering;TheUniversity of Iowa; USA). NUMERICAL SIMULATION OF ALLOY SOLIDIFICATION BY A TWO－PHASE MODEL. Acta Metall Sin, 1994, 30(21): 385-392.

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Abstract A two-phase model of the transport phenomena during solidification of alloys is presented that describes The effect of solid transport and liquid convection on macro-segregation and grain structure evolution.The model considers nucleation, thermal and solutal undercooling, and the macro-movement of solid grains, thus combining macro-transport phenomena with the microstructure of the solid.The two-phase model was used in a numerical simulation of solidification of Al-4%Cu equiaxed alloy and representative results are presented.

Key words: transport phenomenon solidification two-phase flow numerical simulation segregation equiaxed crystal Al-Cu alloy

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1994/V30/I21/385

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