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電場均勻化對2091Al-Li合金時效過程中第二相析出的影響
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The Effect of the Homogenization Treatment with an Electric Field on Second Phase Precipitation of 2091 Al-Li Alloy During Ageing Treatment
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    摘要:

    研究了２０９１Ａｌ－Ｌｉ合金的電場均勻化對顯微結(jié)構(gòu)的影響。結(jié)果表明：強(qiáng)電場加速了Ａｌ－Ｌｉ合金的均勻化，提高了合金元素的固溶程度，誘發(fā)了Ｔ１相的均勻形核，提高了合金的屈服強(qiáng)度；對聯(lián)合均勻化處理的樣品進(jìn)行應(yīng)變時效處理后，析出相均勻彌散分布，合金的力學(xué)性能大大提高。

    Abstract:

    The effect of the homogenization treatment with an electric field on the microstructure of 2091 Al-Li alloy is investigated The results show that the homogenization treatment with an strong electric field promotes the homogenization of Al-Li alloy, increases the solubility of alloying element,induces the homogeneous nucleation of T 1 phase and results in the increasingyield strength In the same time, the strain ageing treatment after the combinedhomogenization treatment increases significently the mechanical properties of 2091 Al-Li alloy because of the uniform and fine second phase precipitation

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劉偉,崔建忠.電場均勻化對2091Al-Li合金時效過程中第二相析出的影響[J].稀有金屬材料與工程,1997,(1):31~34.[Liu Wei. The Effect of the Homogenization Treatment with an Electric Field on Second Phase Precipitation of 2091 Al-Li Alloy During Ageing Treatment[J]. Rare Metal Materials and Engineering,1997,(1):31~34.]
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