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Mg100—xNix(x=7—79)合金機械合金化制備研究
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TF12 TG139.7

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    摘要:

    研究了不同成分的Mg-Ni合金(Mg100-xNix,x=7-79)的機械合金化制備。實驗結(jié)果表明,在機械球磨的條件下,其相變過程和相變產(chǎn)物與熔煉合金有很大差異。在所研究的10個成分中,當(dāng)x=7,12時,球磨產(chǎn)物為Mg2Ni金屬間化合物與晶態(tài)Mg的混合相;當(dāng)x=18,25時,則形成單相的納米晶Mg2Ni;當(dāng)x=334,43,55,67,70時,合金粉末發(fā)生非晶化轉(zhuǎn)變,形成單一的非晶相,且對于不同的

    Abstract:

    The preparation of a Mg-Ni alloy (Mg100-xNix x=7-79) by mechanical alloying is studied. The results show that a great difference exists between the as-milled product and the conventional product. For x=7, 12, the as-milled products are mixtures of the intermetallic compound Mg2Ni and crystalline Mg. For x=18 and 25, the final products are the single phase nanocrystalline Mg2Ni. In the case of x=33, 43, 55, 67 and 70, the as-milled powders are the amorphous and the amorphization reaction paths are strongly dependent on the compositions. For x= 70, a single fee supersaturated solid solution forms. The mechanism of transformation is also discussed in detail.Correspondent: Ji Shijun, Lecturer, Institute of Materials and Technology, Dalian Maritime University, Dalian 116026, P. R. China,Tel:086-441-4671611

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季世軍 孫俊才. Mg100—xNix(x=7—79)合金機械合金化制備研究[J].稀有金屬材料與工程,1998,(5):271~274.[Ji Shijun, Sun Juneal, Xu Xiaolei, Hei Zukun, Yan Li.[J]. Rare Metal Materials and Engineering,1998,(5):271~274.]
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