Transmission electron microscopy(TEM)is usually used to identify the amorphicity. However, some artifacts may be introduced due to improper TEM foil preparation. In this paper, three Al-rich metallic glasses with and without a glass transition were selected for characterizing the effect of the electropolishing condition on the as-quenched structure during TEM specimen preparation. It is shown that the occurrence of the modulated bright-dark structure under TEM observation is closely sensitive to the electropolishing condition,which suggests us being careful about the possible artifacts induced by specimen preparation when examining amorphous alloys under TEM.
参考文献
| [1] | J.H. Perepezko;R.J. Hebert;W.S. Tong .Amorphization and nanostructure synthesis in Al alloys[J].Intermetallics,2002(11/12):1079-1088. |
| [2] | G. Wilde;H. Sieber;J. H. Perepezko .Glass formation in Al-rich Al-Sm alloys during solid state processing at ambient temperatue[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,1999(Pt.2):621-625. |
| [3] | M Calin;A Rudiger;U Koester .[J].Materials Science Forum,2000,343-346:359. |
| [4] | M.Calin;U.Koster .Nanocrystallization of Al-Ni-Y and Al-Ni-Nd metallic glasses[J].Materials Science Forum,1998(Pt.2):749-754. |
| [5] | A K Gangopadhyay;T K Croat;K F Kelton .[J].Acta Materialia,2000,48(16):4035. |
| [6] | T K Croat;A K Gangopadhyay;K F Kelton .[J].Philosophical Magazine A:Physics of Condensed Matter:Structure,Defects and Mechanical Properties,2002,82(12):2483. |
| [7] | N. Tian;M. Ohnuma;T. Ohkubo;K. Hono .Primary Crystallization of an Al{sub}88Gd{sub}6Er{sub}2Ni{sub}4 Metallic Glass[J].Materials transactions,2005(12):2880-2885. |
| [8] | J C Lee;Y C Kim;J P Ahn;H S Kim, S H Lee and B J Lee .[J].Acta Materialia,2004,52(06):1525. |
| [9] | H J Chang;E S Park;Y C Kim;D H Kim .[J].Materials Science and Engineering A,2005,406(1-2):119. |
| [10] | D. Nagahama;T. Ohkubo;K. Hono .Crystallization of Ti_(36)Zr_(24)Be_(40) metallic glass[J].Scripta materialia,2003(7):729-734. |
| [11] | H W Yang;J Wen;J Q Wang.[J].Journal of Alloys and Compounds |
| [12] | Y Kawamura;A Inoue;K Sasamori;A Katoh and T Masumoto .[J].Materials Transactions,1993,34(10):969. |
| [13] | H.W. Yang;S.C. Tjong;J.Q. Wang .Influence of Fe addition on glassy stability of an Al_(85)Ni_5Y_8Co_2 metallic glass with a large supercooled liquid region[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2005(1/2):160-165. |
| [14] | Y He;S J Poon;G J Shiflet .[J].Science,1988,241(4873):1640. |
| [15] | David B Williams;C Barry Carter.Tansmission Electron Microscopy[M].Pelnum Press,New York,1996 |
| [16] | E Tanner;Ranjan Ray .[J].Scripta Metallurgica et Materialia,1980,14(06):657. |
| [17] | B.B. Sun;Y.B. Wang;J. Wen .Artifacts Induced In metallic glasses during TEM sample preparation[J].Scripta materialia,2005(7):805-809. |
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