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Crystallization process of Ni-base metallic glasses

Wybrane pełne teksty z tego czasopisma
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Purpose: The paper presents a crystallization process of Ni68,7Cr6,6Fe2,65Si7,8B14C0,25 metallic glasses. The Ni68,7Cr6,6Fe2,65Si7,8B14C0,25 metallic glasses were produced by the CBMS method for two different conditions of the casting, with different cooling rate. Design/methodology/approach: The crystallization of Ni68,7Cr6,6Fe2,65Si7,8B14C0,25 metallic glasses by method differential thermal analysis (DTA), internal friction (IF), X-ray diffraction and transmission electron microscopy (TEM) were studied. For calculation of activation energy of crystallization processes was used modified Kissingers formula. Findings: The investigation showed, that the conditions of vitrification (different, but higher than critical cooling rate) influence for different course elementary crystallization processes during thermal activation. Research limitations/implications: The differences in temperature of beginning of elementary crystallization processes of alloy, the activation energy of crystallization process as a function of thickness of strip were disclosed. Practical implications: The calculation values of activation energy of crystallization processes can used for analysis of thermal stability of metallic glasses. Originality/value: The paper presents, that the conditions of vitrification influence for different course elementary crystallization processes during thermal activation.
Rocznik
Strony
133--136
Opis fizyczny
Bibliogr. 15 poz., rys., tab., wykr.
Twórcy
autor
  • Rostfrei-Stahl Geisweid GmbH, 57250 Netphen-Deuz, Weiherdamm 1, Germany
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
  • 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
Bibliografia
  • [1] H.S. Chen, Dynamic viscosity of a simple glass-forming liquid, J. Non.-Cryst. Solids, 27 (1978) 257-262.
  • [2] H.S. Chen, Rep. Progr. Phys., Glasses Metals, 43 (1980) 355-428.
  • [3] A. Van Den Beukel, Structural relaxation in FeCrPMnC amorphous alloy, J. Non-Cryst. Solids 83 (1986) 134-140.
  • [4] G.P. Tiwari, R.V. Ramanujan, M.R. Gonal, R.Prasad, P. Raj, B.P. Badguzar, G.L. Goswami, Structural relaxation in metallic glasses, Mater. Sci. Eng. A304-306 (2001) 499-504.
  • [5] R. Nowosielski, S. Griner, T. Poloczek, Influence of amorphous structure’s different stages on structural relaxation and the elementary stage of metallic glasses crystallization, Proc. of the 11th Scientific Conference on the Contemporary Achievements in Mechanics, Manufacturing and Materials Science CAM3S'2005, Gliwice-Zakopane (2005) 720-727.
  • [6] J.W. Graydon, S.J. Thorpe, D.W. Kirk, Effect of coposition on the formation and thermal stability of Ni72(Mo,Co)8B20metallic glass, Acta metal. mater., 43, N.4 (1995) 1363-1373.
  • [7] Y.J. Liu, I.T.H. Chang, Compositional dependence of crystallization behavior of mechanically alloyed amorphous Fe-Ni-Zr-B alloys, Mater. Sci. Eng. A325 (2002) 25-30.
  • [8] T. Ohkubo, H. Kai, A. Makino, Y. Hirotsu, Structural change of amorphous Fe90Zr7B3 alloy in the primary crystallization process studied by modern electron microscope techniques, Mater. Sci. Eng., A312 (2001) 274-283.
  • [9] E. Matsubara, S. Sato, M. Imafuku, T. Nakamura, H. Koshiba, A. Inoue, Y. Waseda, Structural study of Amorphous Fe70M10B20 (M=Zr, Nb and Cr) alloys by X-ray diffraction, Mater. Sci. Eng., A312 (2001) 136-144.
  • [10] H. Chiriac, F. Vinai, M. Tomut, A. Stantero, E. Ferrara, On the crystallization of amorphous Fe85B15 ribbons produced with different heat treatments of the liquid alloy before ejection, J. Non.-Cryst. Solids, 250-252 (1999) 709-713.
  • [11] W.J. Botta F.D. Negri, A.R. Yavari, Crystallization of Fe-based amorphous alloys, J.Non.-Cryst.Solids, 247(1999) 19-25.
  • [12] Ł. Cieślak, D. Szewieczek, J. Tyrlik - Held, A. Waszczuk, Influce gland - surveyor's of continuous casting parameters he the and quality of metallic ribbons of non-crystalline structure, [in:] Silidifikation of Metals and Alloys, Report 6, Ossolineum, Wrocław (1983) 109, (in Polish).
  • [13] T. Poloczek, Crystallization of Ni68,7Cr6,6Fe2,65Si7,8 B14C0,25amorphous alloy, Doctoral dissertation, Silesian University of Technology, Gliwice 2004.
  • [14] H.E. Kissinger, Reaction kinetics in Differential Thermal Analysis, Anal.Chem. 29 (1957) 1702-1707.
  • [15] T. Poloczek, J.W. Moroń, Ł. Cieślak: Determination of activation energy of non-isothermal crystallisation of metallic glass on nickel matrix the internak friction method, Archiv of Materials Science, 7 (1986) 229-237, (in Polish).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-9796b606-aaec-4401-b929-c19d4a611a03
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