The Critical Cooling Rate of Fe-Based Mono-Sized Spherical Particles with Fully Glassy Phase

Abstract:

A new method to evaluate the critical cooling rate, Rc of Fe-based metallic glass alloy was proposed and discussed. [(Fe0.5Co0.5)0.75B0.2Si0.05]96Nb4 alloy particles were prepared with narrow size distribution and high sphericity by Pulsated Orifice Ejection Method in Ar, He and 50%Ar+50%He mixed atmosphere, respectively. Phase transition of a particle from amorphous to amorphous-crystalline and fully crystalline occurred with the increase of particle diameter. Rc of the formation of fully amorphous phase was estimated to be in the range of 700-1100 K/s, lower than that measured by time-temperature transformation diagram of bulk metallic alloy. No change of Rc occurred in Ar, He or 50%Ar+50%He mixed atmosphere, which proved it an effective method to evaluate the critical cooling rate of Fe-based metallic glass alloy.

• Periodical: Advanced Materials Research (Volume 509)
• Pages: 185-191
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.509.185
• Online since: April 2012
• Authors: Ying Li, Wei Dong, Yi Fan Fu, Yi Tan, Ayako Miura, Akira Kawasaki
• Keywords: Critical Cooling Rate, Metallic Glass, Mono-Sized Spherical Particles

References

[1] C.S. Ray, S.T. Reis, R. K. Brow, W. Höland , V. Rheinberger, A new DTA method for measuring critical cooling rate for glass formation, Journal of Non-Crystalline Solids.351 (2005) 1350-1358.

DOI: 10.1016/j.jnoncrysol.2005.03.029

[2] D.R. Uhlmann, H. Yinnon, Glass science and technology (Chapter 1), in: D.R. Uhlmann, N.J. Kreidl (Eds.), Glass Forming Systems, vol. 1, Academic, New York, NY, 1983.

[3] D.R. Uhlmann, A kinetic treatment of glass formation, Journal of Non-Crystalline Solids.7 (4) (1972) 337-348.

DOI: 10.1016/0022-3093(72)90269-4

[4] N. Yodoshi, A. Miura, W. Dong, A. Kawasaki,Synthesis of Mono-Sized Fe-Co Based Metallic Glass Particles by Pulsated Orifice Ejection Method, J. Jpn. Inst. Metals.72 (2008) 686-692.

DOI: 10.2320/jinstmet.72.686

[5] A. Miura, W. Dong，M. Fukue, Preparation of Fe-based monodisperse spherical particles with fully glassy phase, Journal of Alloys and Compounds. 509(2011) 5581-5586.

DOI: 10.1016/j.jallcom.2011.02.044

[6] A. Inoue, B.L. Shen, C.T. Chang,Super-high strength of over 4000 MPa for Fe-based bulk glassy alloys in [(Fe1−xCox)0.75B0.2Si0.05]96Nb4 system, Acta Mater. 52(2004) 4093-4099.

DOI: 10.1016/j.actamat.2004.05.022

[7] A. Inoue, Advanced Technology and Application of Nano Metals, CMC Publishing Co., Ltd., (2003).

[8] C.R.M. Afonso, C. Bolfarini, W.J. Botta Filho, C.S. Kiminami, Spray forming of glass former Fe63Nb10Al4Si3B20 alloy, Material Science and Engineering A. 449-451(2007), 884-889.

DOI: 10.1016/j.msea.2006.02.393

[9] V.C. Srivastava, K.B. Surreddi, S. Scudino, M. Schowalter, V. Uhlenwinkel, Microstructure and mechanical properties of partially amorphous Al85Y8Ni5Co2 plate produced by spray forming, Material Science and Engineering A. 527(2010), 2747-2758.

DOI: 10.1016/j.msea.2010.01.057

[10] S. Masuda, T. Takagi, W. Dong, Solidification Behavior of Falling Germanium Droplets Produced by Pulsated Orifice Ejection Method, Journal of Crystal Growth.310 (2008), 2915-2919..

DOI: 10.1016/j.jcrysgro.2008.01.050

[11] W. Dong, S. Masuda, K. Takagi, The Development of Mono-sized Micro Silicon Particles for Spherical Solar Cells by Pulsated Orifice Ejection Method, Materials Science Forum.534-536 (2007), 149-152.

DOI: 10.4028/www.scientific.net/msf.534-536.149

[12] Netsubusseigakkai,Thermophysical Properties Handbook, Youkendou, Tokyo, 2000.

[13] The Japan Institute of Metal, Kinzoku Data Book, vol.3, Maruzen Co. Ltd., Tokyo, 1993.

[14] P. F. Paradis, T. Ishikawa, S. Yoda,Non-contact measurements of thermophysical properties of niobium at high temperature,J. Mater. Sci. 36(2001), 5125-5130.

[15] S. Taniguchi, J. Yagi,Transport Phenomena in Materials Engineering, Tohoku University Press, Japan, 2001.