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合金元素對(duì)Zr基大塊非晶晶化行為的影響
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TG111.1

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國(guó)家重點(diǎn)基礎(chǔ)研究發(fā)展規(guī)劃項(xiàng)目(G2000067201)，國(guó)家高技術(shù)研究發(fā)展規(guī)劃項(xiàng)目(2001AA331010)


Effects of Alloying Elements on the Crystallization Behavior of Zr-Base Amorphous Alloys
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    摘要:

    利用準(zhǔn)晶的共軛結(jié)構(gòu)模型構(gòu)造出了Zr基非晶合金中準(zhǔn)晶相的原子結(jié)構(gòu)模型,用遞歸方法研究了合金元素對(duì)非晶晶化過(guò)程的影響.結(jié)果表明:Zr基非晶合金析出的準(zhǔn)晶相存在Zr6Ni,Ni6Zr2種結(jié)構(gòu),Ni6Zr結(jié)構(gòu)優(yōu)先析出;合金元素Ag,Pd,Pt,Au固溶于準(zhǔn)晶中時(shí),占據(jù)Cu,Ni原子的位置,增大近鄰原子間的相互作用,這從電子理論角度解釋了合金元素Ag,Pd,Pt,Au穩(wěn)定地促進(jìn)二十面體準(zhǔn)晶(I)相析出的事實(shí).

    Abstract:

    The atom structure models of two kinds of quasicrystal in Zr-base amorphous alloys were set up by using the conjugate structure model of quasicrystals. The effects of alloying elements on the crystallization behavior of Zr-base amorphous alloys were investigated by recursion method. The results show that two kinds of quasicrystal -Zr6Ni, Ni6Zr clusters are exist in Zr-base amorphous alloys, and alloying elements (Ag, Pt, Pd, Au) occupy the sites of Ni ( or Cu) in the quasicrystal phase, and that increase the interaction of neighbor atoms, which explains the fact of alloying elements (Ag, Pd, Pt, Au) promoting the stable growth of the quasicrystal phase.

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張國(guó)英 張輝 胡壯麒 林榕 張海峰.合金元素對(duì)Zr基大塊非晶晶化行為的影響[J].稀有金屬材料與工程,2005,34(3):389~392.[Zhang Guoying, Zhang Hui, Hu Zhuangqi, Lin Rong, Zhang Haifeng. Effects of Alloying Elements on the Crystallization Behavior of Zr-Base Amorphous Alloys[J]. Rare Metal Materials and Engineering,2005,34(3):389~392.]
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  • 最后修改日期:2003-08-05
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