Effect of low diffusion coefficient on glass phase formation in Pd77Cu6Si17 alloy

Wang Zhen-Zhong; Wang Nan; Yao Wen-Jing

doi:10.7498/aps.59.7431

Abstract

The microstructure evolution of laser rapidly solidified Pd77Cu6Si17 alloy was investigated. The experimental results showed that with increasing growth velocity, a phase transition series of Pd3Si dendrite+eutectic-ξ dendrite+eutectic-eutectic grain-regular eutectic-amorphous phase occurred. The critical velocity of amorphous transition was determined to be about 6 mm/s and the smallest lamellar spacing was 35 nm. Compared with those of Al-25 wt% Sm and Al-32.7 wt% Cu alloys, it was proposed that low diffusion coefficient is the main reason for the good glass formation ability of Pd77Cu6Si17 alloy.

Keywords:

Authors and contacts

1.
Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, China

References

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Cited By

[1]	Trivedi R, Kurz W 1994 Acta Metall. Mater. 42 15
[2]	Aziz M J 1982 J. Appl. Phys. 53 1158
[3]	Aziz M J, Boettinger W J 1994 Acta Metall. Mater. 42 527
[4]	Siegel J, Solis J, Afonso C N, Garcia C 1996 J. Appl. Phys. 80 6677
[5]	Inoue A, Ohtera K, Zhang T, Masunoto T 1988 Jpn. J. Appl. Phys. 27 L1583
[6]	Wang N, David S, Walker H, Trivedi R 2007 Trans. Indian Inst. Met. 60 69
[7]	Zimmermann M, Carrard M, Kurz W 1989 Acta Metall. 37 3305
[8]	Inoue A 1998 Prog. Mater. Sci. 43 365
[9]	Trivedi R, Magnin P, Kurz W 1987 Acta Metall. 35 971
[10]	Egry I, Lohfer G, Seyhan I, Schneider S, Feuerbacher B 1999 Int. J. Thermophys. 20 1005
[11]	Boettinger W J 1981 Proceedings of the 4th International Conference on Rapidly Quenched Metals Sendai, Japan, 1981 p99
[12]	Wang N 2008 Chin. Phys. Lett. 25 4168
[13]	Yang S, Su Y P, Liu W J, Huang W D, Zhou Y H 2003 Acta Phys. Sin. 52 81 (in Chinese) [杨森、苏云鹏、刘文今、黄卫东、周尧和 2003 物理学报 52 81]
[14]	Jackson K A, Hunt J D 1966 Trans. Am. Inst. Min. Engng. 236 1129

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Catalog

Vol. 59, Issue 10 - 2010-05-20

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