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Zr基大塊非晶噴射電解腐蝕特征的研究
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國家自然科學(xué)基金（50171068）


Characterization of Zr-Based Bulk Metallic Glass Corroded by Spout Electroanalysis
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    摘要:

    利用透射電子顯微鏡（TEM）及場發(fā)射電鏡納米尺度成分分析技術(shù)（EDS分析）研究塊狀非晶Zr70Cu8Ti7Ni15噴射電解腐蝕特征。結(jié)果表明：在噴射電解腐蝕過程中，非晶內(nèi)少量納米級別的晶體相對于塊狀非晶基體較容易被腐蝕破壞。此外，經(jīng)高氯酸乙醇溶液電解腐蝕后非晶中明顯存在一些特殊非晶區(qū)域，其中含有大量非晶態(tài)氧化物，Ni大量流失，這些區(qū)域的形成是由于Cl離子點蝕引起的。

    Abstract:

    Characterization of Zr-based bulk metallic glass (BMG) corroded by spout electroanalysis was investigated by transmission electronic microscopy (TEM) and energy depressive X-ray spectroscopy (EDS) analysis. Results show that during the spout electroanalysis corrosion process, the nanocrystallines in the amorphous region are corroded more easily than bulk metallic glass. In addition, there are some special amorphous regions in the amorphous specimens by electroanalysis corrosion of perchloric acid solution in alcohol, where a lot of amorphous oxides were observed, and Ni content decreased. The region formation was resulted from nano-pitting of chlorine ion.

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白英良,張海峰,賀連龍,韓 立. Zr基大塊非晶噴射電解腐蝕特征的研究[J].稀有金屬材料與工程,2009,38(12):2167~2170.[Bai Yingliang, Zhang Haifeng, He Lianlong, Han Li. Characterization of Zr-Based Bulk Metallic Glass Corroded by Spout Electroanalysis[J]. Rare Metal Materials and Engineering,2009,38(12):2167~2170.]
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  • 收稿日期:2008-11-20
  • 最后修改日期:2009-02-15
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