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Purpose: The paper mainly aims to present the structure and thermal stability of selected Fe-based bulk metallic glasses: Fe72B20Si4Nb4 and Fe43Co14Ni14B20Si5Nb4. Design/methodology/approach: The investigated samples were cast in form of the rods by the pressure die casting method. The structure analysis of the studied materials in as-cast state was carried out using XRD and TEM methods. The thermal stability associated with glass transition temperature (Tg), onset (Tx) and peak (Tp) crystallization temperature was examined by differential scanning calorimetry (DSC). Several parameters have been used to determine the glass-forming ability of studied alloys. The parameters of GFA included reduced glass transition temperature (Trg), supercooled liquid region (deltaTx), the stability (S) and (Kgl) parameter. Findings: The XRD and TEM investigations revealed that the studied as-cast metallic glasses were fully amorphous. Changes of the onset and peak crystallization temperature and the glass transition temperature as a function of glassy samples thickness were stated. The good glass-forming ability (GFA) enabled casting of the Fe72B20Si4Nb4 and Fe43Co14Ni14B20Si5Nb4 glassy rods. Practical implications: The obtained examination results confirm the utility of applied investigation methods in the thermal stability analysis of examined bulk amorphous alloys. It is evident that parameters Trg, deltaTx, Kgl, S could be used to determine glass-forming ability of studied bulk metallic glasses. Originality/value: The success of fabrication of studied Fe-based bulk metallic glasses in form of rods with diameter up to 3 mm is important for the future progress in research of this group of materials.
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Rocznik
Tom
Strony
66--72
Opis fizyczny
Bibliogr. 15 poz., rys., tabl.
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autor
autor
- Division of Nanocrystalline and Functional Materials and Sustainable Pro-ecological Technologies, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland, rafal.babilas@polsl.pl
Bibliografia
- [1] S. Lesz, D. Szewieczek, J.E. Frąckowiak, Structure and magnetic properties of amorphous and nanocrystalline Fe85.4Hf1.4B13.2 alloy, Journal of Achievements in Materials and Manufacturing Engineering 19 (2006) 29-34.
- [2] P. Kwapuliński, J. Rasek, Z. Stokłosa, G. Badura, B. Kostrubiec, G. Haneczok, Magnetic and mechanical properties in FeXSiB (X=Cu, Zr, Co) amorphous alloys, Archives of Materials Science and Engineering 31/1 (2008) 25-28.
- [3] D. Szewieczek, T. Raszka, Structure and magnetic properties of Fe63.5Co10Cu1Nb3Si13.5B9 alloy, Journal of Achievements in Materials and Manufacturing Engineering 19 (2006) 179-182.
- [4] D. Szewieczek, T. Raszka, J. Olszewski, Optimisation the magnetic properties of the (Fe1-xCox)73.5Cu1Nb3Si13.5B9 (x=10; 30; 40) alloys, Journal of Achievements in Materials and Manufacturing Engineering 20 (2007) 31-36.
- [5] A. Inoue, B. Shen, A. Takeuchi, Fabrication, properties and applications of bulk glassy alloys in late transition metal-based systems, Materials Science and Engineering A 441 (2006) 18-25.
- [6] Z.P. Lu, H. Bei, C.T. Liu, Recent progress in quantifying glass-forming ability of bulk metallic glasses, Intermetallics 15 (2007) 618-624.
- [7] A. Inoue, B.L. Shen, C.T. Chang, Fe- and Co-based bulk glassy alloys with ultrahigh strength of over 4000 MPa, Intermetallics 14 (2006) 936-944.
- [8] R. Nowosielski, R. Babilas, Structure and properties of selected Fe-based metallic glasses, Journal of Achievements in Materials and Manufacturing Engineering 37/2 (2009) 332-339.
- [9] R. Nowosielski, R. Babilas, S. Griner, T. Czeppe, Structure, thermal and magnetic properties of Fe43Co14Ni14B20Si5Nb4 bulk metallic glass, Journal of Achievements in Materials and Manufacturing Engineering 38/2 (2010) 123-130.
- [10] R. Nowosielski, R. Babilas, Preparation, structure and properties of Fe-based bulk metallic glasses, Journal of Achievements in Materials and Manufacturing Engineering 40/2 (2010) 123-130.
- [11] Y. Li, S.C. Ng, C.K. Ong, H.H. Hng, T.T. Goh, Glass forming ability of bulk glass forming alloys, Scripta Materialia 36 (1997) 783-787.
- [12]G.J. Fan, H. Choo, P.K. Liaw, A new criterion for the glass-forming ability of liquids, Journal of Non-Crystalline Solids 353 (2007) 102-107.
- [13]A. Inoue, A. Makino, T. Mizushima, Ferromagnetic bulk glassy alloys, Journal of Magnetism and Magnetic Materials 215-216 (2000) 246-252.
- [14]A. Hruby, Evaluation of glass-forming tendency by means of DTA, Czechoslovak Journal of Physics B22 (1972) 1187-1193.
- [15]M. Saad, M. Poulain, Glass forming ability criterion, Materials Science Forum 19-20 (1987) 11-18.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BOS2-0023-0010