DIRECTIONAL GROWTH OF EUTECTIC Al-Li COMPOSITE MATERIALS

Acta Metall Sin

1996, Vol. 32

Issue (9): 993-997 DOI:

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DIRECTIONAL GROWTH OF EUTECTIC Al-Li COMPOSITE MATERIALS

PENG Delin; MIN Guanghui; AN Geying; LIU Hongbo (Harbin Institute of Technology; Harbin 150001)

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PENG Delin; MIN Guanghui; AN Geying; LIU Hongbo (Harbin Institute of Technology; Harbin 150001). DIRECTIONAL GROWTH OF EUTECTIC Al-Li COMPOSITE MATERIALS. Acta Metall Sin, 1996, 32(9): 993-997.

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Abstract The crystal growth criterion was studied to obtain eutectic composite materials for hypoeutectic Al-Li alloy. It is shown that the solid/liquid interface exhibits a stable and planar form and the ragular eutectic structure can be obtained when 6.5×10~5 K·s·cm~(-2)≤ G_L/R< 11×10~5K·s·cm~(-2). The morphology of β phase (AlLi) is bar-like in Al-Li eutectic structure.

Key words: Al-Li alloy eutectic composite material directional solidification

Received: 18 September 1996

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1996/V32/I9/993

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