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Glass Forming Ability and Crystallization Behaviors of the Ti-Cu-Ni-(Sn) Alloys with Large Supercooled Liquid Region

Published online by Cambridge University Press:  17 March 2011

Y.C. Kim ,
S. Yi ,
W.T. Kim  and
D.H. Kim
Y.C. Kim
Affiliation:
Center for Noncrystalline Materials, Dept. of Metallurgical Eng., Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul, 120-749, Korea
S. Yi
Affiliation:
Center for Noncrystalline Materials, Dept. of Metallurgical Eng., Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul, 120-749, Korea
W.T. Kim
Affiliation:
Center for Noncrystalline Materials, Dept. of Physics, Chongju University 36 Naedok Dong, Chongju, Chungbuk, 360-764, Korea
D.H. Kim
Affiliation:
Center for Noncrystalline Materials, Dept. of Metallurgical Eng., Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul, 120-749, Korea
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Abstract

The thermal stability and crystallization behavior of melt spun amorphous Ti50Cu35Ni15-xSnx (x=0, 3, 5, 7) alloys has been studied in by thermal analysis (DSC and DTA) and X-ray diffractometry. Partial replacement of Ni by Sn up to 5 at % in Ti50Cu35Ni15 alloy improved thermal stability and glass forming ability. The onset temperature of the first exotherm increased from 739 to 756 K with increasing Sn content x from 0 to 5, and then decreased to 745 K for the alloy with x=7 due to change in crystallization sequence. Melt spun amorphous Ti50Cu35Ni12Sn3 and Ti50Cu35Ni10Sn5 alloys exhibit ΔTx exceeding 78 and 76 K, respectively, which is significantly larger than ΔTx of 46 K in Ti50Cu35Ni15 alloy. Amorphous Ti50Cu35Ni15 alloy crystallized by precipitation of supersaturated cubic Ti(Ni,Cu) phase followed by decomposition into a mixture of TiCu and TiNi at higher temperature. Amorphous Ti50Cu35Ni15-xSnx (x=3, 5) phase crystallized by precipitation of cubic Ti(Ni,Cu) phase, followed by transformation into a mixture of TiNi, TiCu, Ti3Sn phases. Amorphous Ti50Cu32Ni8Sn7 phase crystallized by co- precipitation of cubic Ti(Ni,Cu) phase and unidentified phase, followed by transformation into a mixture of TiNi, TiCu, Ti3Sn phases.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 644: Symposium L – Supercooled Liquid, Bulk Glassy and Nanocrystalline State of Alloys , 2000 , L4.9
Copyright
Copyright © Materials Research Society 2001

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References

1. Tanner, L.E. and Ray, R., Scripta Met., 11, 783 (1977).Google Scholar
2. Polk, D.E., Calka, A. and Giessen, B.C., Acta Metall., 26, 1097 (1978).Google Scholar
3. Inoue, A., Masumoto, T., Suryanarayana, C. and Hoshi, A., J.Physique, 41, 758 (1980).Google Scholar
4. Zhang, T., Inoue, A. and Masumoto, T., Mater. Sci.Eng., A181/A182, 1423 (1994).Google Scholar
5. Inoue, A., Nishiyama, N., Amiyam, K. Zhang, T. and Masumoto, T., Mater.Lett., 19, 131 (1994).Google Scholar
6. Amiya, K., Nishiyama, N., Inoue, A. and Masumoto, T., Mater.Sci.Eng., A179/A180, 692 (1994).Google Scholar
7. Zhang, T. and Inoue, A., Mater. Trans., JIM, 39, 1001, (1998).Google Scholar
8. Alisova, S.P., Volynskaya, N.V., Budberg, P.B. and Kobylkin, A.N., Russian Metall., 5, 207 (1986).Google Scholar
9. Kim, Y.C., Yi, S., Kim, W.T., Kim, D.H., ISMANAM-2000, J. Metastable and Nanocrystalline Mater., (in press)Google Scholar
10. Villars, P. and Calvert, L.D., in “Pearson's hand book of crystallographic data for intermetallic phases”, (Materials Park, OH, ASM International, 1991)Google Scholar