| CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
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Preparation and Characterization of Fe-Based Metallic Glasses with Pure and Raw Elements |
| Nassima Seghairi1,2, Badis Bendjemil1,3,4**, Gabriel Lavorato1, Alberto Castellero1, Marcello Baricco1 |
1Dipartimento di Chimica I.F.M/NIS/CNISM/INSTM, Università di Torino, Via Giuria 9, 10125 Trino, Italy
2University of Larbi Ben M'hidi, Oum El Bouaghi, Algeria
3LASEA, Faculty of Sciences, Department of Chimistry, University of Annaba, Algeria
4University of Guelma, P. O. Box 12, 24000 Guelma, Algeria
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| Cite this article: |
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Nassima Seghairi, Badis Bendjemil, Gabriel Lavorato et al 2012 Chin. Phys. Lett. 29 118102 |
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Abstract Amorphous alloys with a composition (at.%) Fe48Cr15Mo14C15B6Y2 were prepared by using either pure elements (alloy B1) or a commercial AISI430 steel as a base material (B2). When prepared from pure elements, alloy (B1) could be cast in plate form with a fixed thickness of 2 mm and variable lengths between 10 and 20 mm by means of copper-mold injection in an air atmosphere. In the case of alloy B2, prepared by using commercial grade raw materials, rods of 2 mm diameter are obtained. Ribbons (B1 and B2) of width 5 mm and thickness about 30 μm are prepared from the arc-melted ingots using a single roller melt spinner at a wheel speed of 40 m/s. The thermal and structural properties of the samples are measured by a combination of differential scanning calorimetry (DSC), x-ray diffraction and scanning electron microscopy. Chemical compositions are checked by energy dispersive spectroscopy analysis. X-ray diffraction and scanning electron microscopy observations confirm that an amorphous structure is obtained in all the samples. A minor fraction of crystalline phases (oxides and carbides) is detected on the as-cast surface. Values of hardness and Young modulus were measured by nanoindentation for both the alloys. The effects of adverse casting conditions (such as air atmosphere, non-conventional injection copper mold casting and the partial replacement of pure elements with commercial grade raw materials) on the glass formation and properties of the alloy are discussed.
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Received: 10 July 2012
Published: 28 November 2012
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| PACS: |
81.05.Kf
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(Glasses (including metallic glasses))
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73.50.-h
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(Electronic transport phenomena in thin films)
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07.85.Fv
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(X- and γ-ray sources, mirrors, gratings, and detectors)
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07.20.Fw
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(Calorimeters)
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[1] Duwez P and Lin S C H 1967 J. Appl. Phys. 38 4096
[2] Haigiwara M, Inoue A and Masumoto T 1982 Metall. Trans. 13A 373
[3] Inoue A, Shinohara Y and Gook J S 1995 Mater. Trans. JIM 36 1427
[4] Inoue A, Zhang T, Itoi T and Takeuchi A 1997 Mater. Trans. JIM 38 359
[5] Zhang W and Inoue A 2000 Mater. Trans. JIM 41 1679
[6] Pang S, Zhang T, Asami K and Inoue A 2001 Mater. Trans. JIM 42 376
[7] Wang W H, Pan M X, Zhao D Q, Hu Y and Y Bai H J 2004 J. Phys.: Condens. Matter 16 3719
[8] Lu Z P, Liu C T, Thompson J R and Porter W D 2004 Phys. Rev. Lett. 92 245503
[9] Ponnambalam V, Poon S J and Shiflet G J 2004 J. Mater. Res. 19 1320
[10] Shen J, Chen Q, Sun J, Fan H and Wang G 2005 Appl. Phys. Lett. 86 151907
[11] Oliver W C and Pharr G M 1992 J. Mater. Res. 7 1564
[12] Pan J, Chen Q, Li N and Liu L 2008 J. Alloys Compd. 463 246
[13] Kramer M J, Mecco H, Dennis K W, Vargonova E, McCallum R W and Napolitano R E 2007 J. Non-Cryst. Solids 353 3633
[14] Wang W H 2007 Prog. Mater. Sci. 52 540
[15] Lu Z P and Liu C T 2002 Acta Mater. 50 3501 |
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