MODIFICATION EFFECT OF Sr ON Al-Si ALLOY

Acta Metall Sin

1989, Vol. 25

Issue (4): 104-109 DOI:

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MODIFICATION EFFECT OF Sr ON Al-Si ALLOY

LIU Qiyang;LI Qingchun;ZHANG Jiren Harbin Institute of Technology

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LIU Qiyang;LI Qingchun;ZHANG Jiren Harbin Institute of Technology. MODIFICATION EFFECT OF Sr ON Al-Si ALLOY. Acta Metall Sin, 1989, 25(4): 104-109.

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Abstract By inserting the single crystal silicon seeds into Sr modified A1-22wt-%Si alloy melts, the fact that nucleation and growth of Si-phase are affectedby Sr addition has been confirmed. It is suggested that this effect is caused by theadsorption of Sr on {111}_(si), and the modification of eutectic structure results fromthe variation of leading phase in the eutectic from Si to α-Al

Key words: Al-Si alloy Sr modification

Received: 18 April 1989

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1989/V25/I4/104

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