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超聲處理對Mg-9Al二元鎂合金Mg17Al12相形貌影響
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TG146.2

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國家支撐計劃重點項目 , 國家自然科學基金 , 國家重點基礎研究發(fā)展計劃(973計劃)


Influence of Ultrasonic Treatment on the Morphology in Mg17Al12 of Mg-9Al Binary Magnesium Alloy
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    摘要:

    研究了超聲處理對Mg-9Al合金Mg17Al12相形貌的影響.結果表明:經(jīng)過高強超聲處理的Mg-9Al二元鎂合金,Mg17Al12相得到顯著細化,同時從連續(xù)形貌變成了不連續(xù)形貌,在凝固過程中球狀Mg17Al12相形成,并均勻分布在鎂合金基體中.

    Abstract:

    Phase morphology is one of the most important microstructural characteristics determining the mechanical and therefore the service performance of polycrystalline materials. Now, phase morphology of alloy can be changed by chemical modification, superheating treatment and electromagnetic vibration. The effect of ultrasonic treatment on the Mg17Al12 morphology in Mg-9.0wt% A1 alloy is studied in this paper. The result shows that with employing high-intensity ultrasonic vibration during the solidifying of Mg-9.0wt% Al, the Mg17Al12 in the entire cross section of the billet is significantly refined and its morphology exhibited the change from continuous to discontinuous morphology. Spherical Mg17Al12 is formed during solidification of billet treated with high-intensity ultrasonic vibration.

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張志強,樂啟熾,崔建忠.超聲處理對Mg-9Al二元鎂合金Mg17Al12相形貌影響[J].稀有金屬材料與工程,2008,37(1):173~175.[Zhang Zhiqiang, Le Qichi, Cui Jianzhong. Influence of Ultrasonic Treatment on the Morphology in Mg17Al12 of Mg-9Al Binary Magnesium Alloy[J]. Rare Metal Materials and Engineering,2008,37(1):173~175.]
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  • 收稿日期:2007-01-24
  • 最后修改日期:2007-01-24
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