Hostname: page-component-7dd5485656-wxk4p Total loading time: 0 Render date: 2025-10-31T00:31:09.324Z Has data issue: false hasContentIssue false
  • English
  • Français

Nonequilibrium effects of primary solidification on peritectic reaction and transformation in undercooled peritectic Fe–Ni alloy

Published online by Cambridge University Press:  31 January 2011

Y.Z. Chen ,
F. Liu ,
G.C. Yang  and
Y.H. Zhou
Y.H. Zhou
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an Shaanxi, 710072 People's Republic of China
Get access

Abstract

Applying the glass fluxing method, a peritectic Fe–Ni alloy with a composition of Fe–4.35 at.% Ni was undercooled. It was found that when the initial melt undercooling (ΔT) is smaller than 130 K, the overall thickness of the peritectic phase formed in peritectic reaction (PR) and peritectic transformation (PT) decreases as ΔT increases. The nonequilibrium effects of the primary solidification on PR and PT in the undercooled peritectic Fe–Ni alloys were illuminated. With increasing ΔT, since the driving forces for PR and PT change slightly, the decrease of the overall thickness of the peritectic phase formed in PR and PT can be mainly ascribed to the reduced transformation time for PT.

Keywords

Phase transformationRapid solidificationAlloy

Information

Type
Materials Communications
Information
Journal of Materials Research , Volume 25 , Issue 6 , June 2010 , pp. 1025 - 1029
Copyright
Copyright © Materials Research Society 2010

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

REFERENCES

1.Kurz, W., Fisher, D.J.Fundamentals of Solidification 4th ed (Trans Tech Publications, Aedermannsdorf, Switzerland 1998)207208Google Scholar
2.Kerr, K.W., Kurz, W.Solidification of peritectic alloys. Int. Mater. Rev. 41, 129 (1996)CrossRefGoogle Scholar
3.Hillert, M.Solidification and Casting of Metals (The Metals Society, London, UK 1979)8183Google Scholar
4.Fredriksson, H., Nylén, T.Mechanism of peritectic reactions and transformations. Met. Sci. 16, 283 (1982)CrossRefGoogle Scholar
5.John, D.H. St., Hogan, L.M.A simple prediction of the rate of the peritectic transformation. Acta Metall. 35, 171 (1987)CrossRefGoogle Scholar
6.Lopez, H.F.Analysis of solute segregation effects on the peritectic transformation. Acta Metall. Mater. 39, 1543 (1991)CrossRefGoogle Scholar
7.Ha, H.P., Hunt, J.D.A numerical and experimental study of the rate of transformation in three directionally grown peritectic systems. Metall. Mater. Trans. A 31, 29 (2000)CrossRefGoogle Scholar
8.Lo, T.S., Dobler, S., Plapp, M., Karma, A., Kurz, W.Phase microstructure selection in peritectic solidification: From island banding to coupled growth. Acta Mater. 51, 599 (2003)CrossRefGoogle Scholar
9.Shibata, H., Arai, Y., Suzuki, M., Emi, T.Kinetics of peritectic reaction and transformation in Fe–C alloys. Metall. Mater. Trans. B 31, 981 (2000)CrossRefGoogle Scholar
10.Arai, Y., Emi, T., Fredriksson, H., Shibata, H.In-situ observed dynamics of peritectic solidification and δ/γ transformation of Fe-3 to 5 At. Pct Ni alloys. Metall. Mater. Trans. A 36, 3065 (2005)CrossRefGoogle Scholar
11.McDonald, N.J., Sridhar, S.Peritectic reaction and solidification in iron-nickel alloys. Metall. Mater. Trans. A 34, 1931 (2003)CrossRefGoogle Scholar
12.Dobler, S., Lo, T.S., Plapp, M., Karma, A., Kurz, W.Peritectic coupled growth. Acta Mater. 52, 2795 (2004)CrossRefGoogle Scholar
13.Vandyoussefi, M., Kerr, H.W., Kurz, W.Two-phase growth in perictectics Fe–Ni alloys. Acta Mater. 48, 2297 (2000)CrossRefGoogle Scholar
14.Ozawa, S., Kuribayashi, K., Hirosawa, S., Reutzel, S., Herlach, D.M.Heat treatment of metastable Nd2Fe17Bx phase formed from undercooled melt of Nd–Fe–B alloys. J. Appl. Phys. 100, 123906 (2007)CrossRefGoogle Scholar
15.Wang, N., Wei, B.Rapid solidification of undercooled Cu–Ge peritectic alloy. Acta Mater. 48, 1931 (2000)CrossRefGoogle Scholar
16.Leonhardt, M., Löser, W., Lindenkreuz, H-G.Phase selection in undercooled peritectic Fe–Mo alloys. Acta Mater. 50, 725 (2002)CrossRefGoogle Scholar
17.Phanikumar, G., Biswas, K., Funke, O., Holland-Moritz, D., Herlach, D.M., Chattopadhyay, K.Solidification of undercooled peritectic Fe–Ge alloy. Acta Mater. 53, 3591 (2005)CrossRefGoogle Scholar
18.Li, M., Kuribayashi, K.Phase selection in the containerless solidification of undercooled CaO 6Al2O3 melts. Acta Mater. 52, 3639 (2004)CrossRefGoogle Scholar
19.Chuang, Y.Y., Chang, Y.A.A thermodynamic analysis of the phase equilibria of the Fe–Ni system above 1200 K. Metall. Trans. A 18, 733 (1987)CrossRefGoogle Scholar
20.Chen, Y.Z., Liu, F., Yang, G.C., Liu, N., Yang, C.L., Zhou, Y.H.Suppression of peritectic reaction in the undercooled peritectic Fe–Ni melts. Scr. Mater. 57, 779 (2007)CrossRefGoogle Scholar
21.Chen, Y.Z., Yang, G.C., Liu, F., Liu, N., Xie, H., Zhou, Y.H.Microstructure evolution in undercooled Fe–7.5at.% Ni alloys. J. Cryst. Growth 282, 490 (2005)CrossRefGoogle Scholar
22.Herlach, D.M.Non-equilibrium solidification of undercooled metallic melts. Mater. Sci. Eng., R 12, 235 (1994)CrossRefGoogle Scholar
23.Chen, Y.Z.Non-equilibrium solidification and phase selection behavior of peritectic Fe–Ni alloys. Ph.D. Thesis Northwestern Polytechnical University, Xi'an, People's Republic of China 2008Google Scholar