Czasopismo
2008
|
Vol. 31, nr 1
|
33-36
Tytuł artykułu
Autorzy
Wybrane pełne teksty z tego czasopisma
Warianty tytułu
Języki publikacji
Abstrakty
Purpose: The paper presents a crystallization process of i68.7Cr6.6Fe2.65Si7.8B14C0.25 metallic glasses. The Ni68.7Cr6.6Fe2.65Si7.8B14C0.25 metallic glasses was produced by the CBMS method with cooling rate corresponding for amorphous structure manufacturing. Design/methodology/approach: The crystallization of Ni68.7Cr6.6Fe2.65Si7.8B14C0.25 metallic glasses by method internal friction (IF) differential thermal analysis (DTA), X-ray and transmission electron microscopy (TEM) were studied. Findings: The investigation showed, that metallic glasses during thermal activation go through from metastable amorphous state by few medial states to the stable crystalline state (relaxation and crystallization process). Research limitations/implications: During thermal activation of metallic glasses two processes can be distinguished: structural relaxation of amorphous structure and complex crystallization process of alloy. Practical implications: Perception of structural relaxation and crystallization processes of metallic glasses can used for analysis of thermal stability of metallic glasses. Originality/value: The paper presents, that the thermal activation of metallic glasses conduct to the structural changes, which the final stage is crystalline state.
Rocznik
Tom
Strony
33-36
Opis fizyczny
Bibliogr. 16 poz.
Twórcy
autor
autor
autor
- Rostfrei-Stahl Geisweid GmbH, 57250 Netphen-Deuz, Weiherdamm 1, Germany, poloczek@rostfrei-stahl.de
Bibliografia
- [1] H.S. Chen, Dynamic viscosity of a simple glass-forming liquid, Journal of Noncrystalline Solids 27 (1978) 257-262.
- [2] H.S. Chen, Glasses Metals Report on Progress in Physics 43 (1980) 355-428.
- [3] A. Van Den Beukel, Structural relaxation in FeCrPMnC amorphous alloy, Journal of Noncrystalline 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, Materials Science and Engineering 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, Proceedings of the 11th Scientific Conference "Contemporary Achievements in Mechanics, Manufacturing and Materials Science" CAM3S'2005, Gliwice - Zakopane, 2005, 720-727, (CD-ROM).
- [6] J.W. Graydon, S.J. Thorpe, D.W. Kirk, Effect of coposition on the formation and thermal stability of Ni72(Mo,Co)8B20 metallic glass, Acta Metalurgica Materiala 43/4 (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, Materials Science Engineering 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, Materials Science Engineering 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, Materials Science Engineering 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, Journal of Noncrystalline Solids 250-252 (1999) 709-713.
- [11] W.J. Botta F.D. Negri, A.R. Yavari, Crystallization of Fe-based amorphous alloys, Journal of Noncrystalline Solids 247 (1999) 19-25.
- [12] T. Poloczek, S. Griner, R. Nowosielski, Crystallisation process of Ni-base metallic glasses, Journal of Achievements in Materials and Manufacturing Engineering 18 (2006) 133-136.
- [13] T. Poloczek, S. Griner, R. Nowosielski, Crystallization process of Ni-base metallic glasses by electrical resistance measurements, Archives of Materials Science and Engineering 28/6 (2007) 353-356.
- [14] Ł. Cieślak, J. Tyrlik - Held, D. Szewieczek: Casting the tapes with the technique of very quick cooling from liquid state for the chosen of metals and alloys, Scientific Book PAN of No. 3, Casting Committee, Katowice, 1980 (in Polish).
- [15] Ł. Cieślak, D. Szewieczek, J. Tyrlik - Held, A. Waszczuk, Infuse gland - surveyor's of continuous casting parameters he the and quality of metallic ribbons of non - crystalline structure, Solidification of Metals and Alloys, Report 6, Ossolineum, Wrocław, 1983, 109, (in Polish).
- [16] T. Poloczek, Crystallization of Ni68,7Cr6,6Fe2,65Si7,8B14C0,25 amorphous alloy, Doctoral dissertation, Silesian University of Technology, Gliwice, 2004.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.baztech-article-BSL8-0028-0008