Microstructure and Devitrification Behavior of Melt-Spun Al-Rich Metallic Glasses and Nanostructured Composites
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and
Abstract
Melt-spun Al-rich metallic glasses and nanostructured composites were synthesized under various quenching rates. Differential scanning calorimetry (DSC), X-ray diffraction and transmission electron microscopic techniques were employed to study the microstructure and devitrification of these samples in more details. The microstructure obtained is strongly sensitive to the quenching rates used. A reduction of the quenching rate from 50 to 9 m/s changed the structure from an amorphous single phase to the coexistence of α-Al nanocrystals and amorphous phase, and finally to a combination of α-Al, Al3(Ni,Fe), Al11Ce3 and amorphous matrix. Upon devitrifying, a two-stage crystallization reaction was observed but the glass transition was not detected in these samples. The absence of glass transition was presumably due to the formation of pre-existing nuclei. Isothermal and non-isothermal DSC measurements indicated that the first crystallization was associated with the growth of α-Al nanocrystals controlled by the volume diffusion with a small activation energy of 1.3 –1.7eV. The second crystallization was derived from the growth of Al3(Ni,Fe) and Al11Ce3 nanophases.
This work was financially supported by the National Science Foundation of China (Grant Nos. 59901011 and 59823001), the Chinese Academy of Sciences and the Croucher Foundation of Hong Kong. The authors would like to thank Prof. K. Lu for valuable comments and suggestions.
References
1 He, Y.; Poon, S.J.; Shiflet, G.J.: Science 241 (1988) 1640.10.1126/science.241.4873.1640Search in Google Scholar
2 Greer, A.L.: Science 267 (1995) 1947.10.1126/science.267.5206.1947Search in Google Scholar
3 Inoue, A.: Prog. Mater. Sci. 43 (1998) 365.10.1016/S0079-6425(98)00005-XSearch in Google Scholar
4 Calin, M.; Köster, U.: Mater. Sci. Forum, 269 –272 (1998) 749.10.4028/www.scientific.net/MSF.269-272.749Search in Google Scholar
5 Foley, J.C.; Allen, D.R.; Perepezko, J.H.: Scripta Mater. 35 (1996) 655.10.1016/1359-6462(96)00196-0Search in Google Scholar
6 Perepezko, J.H.: Mater. Sci. Eng. A 65 (1984) 125.10.1016/0025-5416(84)90206-4Search in Google Scholar
7 Kelton, K.F.: Phil. Mag. Lett. 77 (1998) 337.10.1080/095008398178318Search in Google Scholar
8 Kelton, K.F.: Acta Mater. 48 (2000) 1967.10.1016/S1359-6454(99)00455-3Search in Google Scholar
9 Allen, D.R.; Foley, J.C.; Perepezko, J.H.: Acta Mater. 46 (1998) 431.10.1016/S1359-6454(97)00279-6Search in Google Scholar
10 Williamson, G.K.; Hall, W.H.: Acta Metall. 1 (1953) 22.10.1016/0001-6160(53)90006-6Search in Google Scholar
11 Audebert, F.; Sirkin, H.; Garcia-Escorial, A.: Phil. Mag. B 76 (1997) 483.10.1080/01418639708241113Search in Google Scholar
12 Jiang X.Y.; Zhong Z.C.; Greer A.L.: Phil. Mag. B 76 (1997) 419.10.1080/01418639708241105Search in Google Scholar
13 Gangopadhyay, A.K.; Kelton, K.F.: Phil. Mag., A 80 (2000) 1193.10.1080/01418610008212110Search in Google Scholar
14 Wang, J.Q.; Chang, X.C.; Hou, W.L.; Lu, K.; Hu, Z.Q.: Phil. Mag. Lett. 80 (2000) 349.10.1080/095008300176128Search in Google Scholar
15 Inoue, A.; Ohtera, K.; Tsai, A.P.: Jpn. J. Appl. Phys. 27 (1988) L1579.10.1143/JJAP.27.L1579Search in Google Scholar
16 Egami, T., in: Liebermann, H. (ed.), Rapidly Solidified Alloys, Dekker, New York (1993) 231.10.1201/9781482233995Search in Google Scholar
17 Hsieh, H.Y.; Toby, B.H.; Egami, T.; He, Y.; Poon, S.J.; Shiflet, G.J.; J. Mater. Res. 5 (1990) 2807.10.1557/JMR.1990.2807Search in Google Scholar
18 Sabet-Sharghi, R.; Altounian, Z.; Muir, W.B.: J. Appl. Phys. 75 (1994) 4438.10.1063/1.355958Search in Google Scholar
19 Tsai, A.P.; Kamiyama, T.; Kawamura, Y.; Inoue, A.; Masumoto, T.: Acta Mater. 45 (1997) 1477.10.1016/S1359-6454(96)00268-6Search in Google Scholar
20 Kelton, K.F.; Greer, A.L.: J. Non-Cryst. Solids 79 (1986) 295.10.1016/0022-3093(86)90229-2Search in Google Scholar
21 Greer, A.L.: Acta Metall. 30 (1982) 171.10.1016/0001-6160(82)90056-6Search in Google Scholar
22 Kissinger, H.E.: Anal. Chem. 29 (1957) 1702.10.1021/ac60131a045Search in Google Scholar
23 Christian, J.W.: The Theory of Transformation in Metals and Alloys, Pergamon Press, New York (1975) 15.Search in Google Scholar
24 Calka, A.; Radlinski, A.P.: J. Mater. Res. 3 (1987) 59.10.1557/JMR.1988.0059Search in Google Scholar
25 Ghosh, G.; Chandrasekaran, M.; Delaey, L.: Acta Metall. Mater. 39 (1991) 925.10.1016/0956-7151(91)90292-9Search in Google Scholar
26 Sun, N.X.; Liu, X.D.; Lu, K.: Scripta Mater. 34 (1996) 1201.10.1016/1359-6462(95)00657-5Search in Google Scholar
© 2001 Carl Hanser Verlag, München
Articles in the same Issue
- Frontmatter
- Editorial
- In memoriam
- The Ringberg Workshop 1999 on Thermodynamic Modelling and Applications
- Aufsätze/Articles
- Using Ab Initio Calculations in the Calphad Environment
- Contributions to the Thermodynamic Modelling of Solutions
- Thermodynamic Modelling of Oxide and Oxynitride Phases
- The Modelling of Carbide, Nitride and Carbo-Nitride Phases
- Amorphous Phases in Materials Microstructure
- Experimental and Theoretical Study of the Al-Rich Corner in the Ternary Al–Ti–B System and Reassessment of the Al-Rich Side of the Binary Al–B Phase Diagram
- Evaluation of Superplastic Formability of the AZ31 Magnesium Alloy
- Characteristics of Mechanical Alloying of Zn–Al-Based Alloys
- The Effect of Sputter Cleaning and TiN Coating after Sputter Cleaning on Tensile and Fatigue Behavior of a Nodular Cast Iron
- Nucleation of Iron Nitrides during Gaseous Nitriding of Iron; Effect of a Preoxidation Treatment
- Structure Formation of Activated Nickel Catalyst During Caustic Leaching of a Nickel–Aluminium Alloy
- Experimental Study on the Electrical Conductivity and Thermo-Electromotive Force of Liquid Pb–Mg-Based Alloys
- Interfacial Reactions between the Aluminium Alloy Matrix and Intermetallic Reinforcement Particles in Novel P/M 5056/Ni3Alp Composites
- Microstructure and Devitrification Behavior of Melt-Spun Al-Rich Metallic Glasses and Nanostructured Composites
- Mitteilungen/Notifications
- Personelles/Personal
- Bücher/Books
- Tagungen/Conferences
Articles in the same Issue
- Frontmatter
- Editorial
- In memoriam
- The Ringberg Workshop 1999 on Thermodynamic Modelling and Applications
- Aufsätze/Articles
- Using Ab Initio Calculations in the Calphad Environment
- Contributions to the Thermodynamic Modelling of Solutions
- Thermodynamic Modelling of Oxide and Oxynitride Phases
- The Modelling of Carbide, Nitride and Carbo-Nitride Phases
- Amorphous Phases in Materials Microstructure
- Experimental and Theoretical Study of the Al-Rich Corner in the Ternary Al–Ti–B System and Reassessment of the Al-Rich Side of the Binary Al–B Phase Diagram
- Evaluation of Superplastic Formability of the AZ31 Magnesium Alloy
- Characteristics of Mechanical Alloying of Zn–Al-Based Alloys
- The Effect of Sputter Cleaning and TiN Coating after Sputter Cleaning on Tensile and Fatigue Behavior of a Nodular Cast Iron
- Nucleation of Iron Nitrides during Gaseous Nitriding of Iron; Effect of a Preoxidation Treatment
- Structure Formation of Activated Nickel Catalyst During Caustic Leaching of a Nickel–Aluminium Alloy
- Experimental Study on the Electrical Conductivity and Thermo-Electromotive Force of Liquid Pb–Mg-Based Alloys
- Interfacial Reactions between the Aluminium Alloy Matrix and Intermetallic Reinforcement Particles in Novel P/M 5056/Ni3Alp Composites
- Microstructure and Devitrification Behavior of Melt-Spun Al-Rich Metallic Glasses and Nanostructured Composites
- Mitteilungen/Notifications
- Personelles/Personal
- Bücher/Books
- Tagungen/Conferences
