Interfacial reaction between solid nickel and liquid zinc

Abstract

Interfacial reactions between solid nickel and liquid zinc at 450–650 °C for 30–600 s were studied. The morphology and growth behavior of intermetallic compound layers at the interface between solid nickel and liquid zinc were observed and analyzed by SEM and EDS. The results show that γ and δ phases are formed at 450 °C at the Ni/Zn interface, and at 550 °C and 650 °C only γphase is formed at the interface and some δ phase particles will be participated during solidification on the surface of γ phase layer. The δ ₁ phase is absent under experimental conditions. Many cracks occur in the layers due to the difference in thermal expansion coefficients of these phases. It is found that the kinetics of the intermetallic compounds growth follows a parabolic law of time, as controlled by the diffusion mechanism. The apparent activation energies are 113.9 kJ/mol for the growth of γ phase and 125.87 kJ/mol for γ ₁ phase, respectively.

Keywords

interfacial reaction / diffusion / liquid zinc / solid nickel

References

[1] Giorgi M. L., Durighello P., Nicolle R., . Dissolution Kinetics of Iron in Liquid Zinc[J]. J.Materials Science, 2004, 39(18): 5 803-5 808.

[2] Dybkov V. I., Barmak K., Lengauer W., . Interfacial Reaction of Solid Nickel with Liquid Bismuth and Bi-base Alloys[J]. J.Alloy Compounds, 2005, 389: 61-74.

[3] Snugovsky L., Ruggiero M. A., Perovic D. D., . Experiments on Interaction of Liquid Tin With Solid Copper[J]. Materials Science and Technology, 2003, 19(7): 866-874.

[4] Chen Z. W., Kennon N. F., See J. B., . Technigalva and Other Developments in Batch Hot-dip Galvanizing[J]. JOM, 1992, 44(1): 22-66.

[5] Yoshinori W., Masahiro U. K., . Effect of Electroless Nickel Plating on Reaction Between Silicon-containing Steels and Molten Zinc[J]. J.Iron and Steel Institute of Japan, 1999, 85(9): 46-52.

[6] Dybkov V. I., Duchenko O. V. The Homogeneity Ranges of and Phase of Ni-Zn System Grown by the Reaction Couple Method[J]. J Phase Equilibria, 1998, 19(5): 434-440.

[7] Dybkov V. I. Regularities of Reactive Diffusion and Phase Formation in Ni-Bi, Ni-Zn, and Co-Zn Binary Systems[J]. Powder Metallurgy and Metal Ceramics, 2001, 40(7–8): 428-431.

[8] Vassilev G. P., Acebo T. G., Tedenac J. C. Thermodynamic Optimization of the Ni-Zn System[J]. J Phase Equilibria, 2000, 21(3): 287-300.

[9] Dybkov V. I. Interaction of Iron-nickel Alloys With Liquid Aluminum[J]. J Materials Science, 2000, 35: 1 729-1 736.

[10] Duchenko O. V., Vereshchaka V. M., Dybkov V. I. Phase Formation and Reaction Kinetics in Co-Zn Diffusion Couples[J]. J. Alloy Compounds, 1999, 288: 164-169.

[11] Gang K., Jintang L., Qiaoyu X. Study on the Dissolution of Solid Nickel in Liquid Zinc[J]. The Chinese J. Nonferrous Metals, 2006, 16(2): 1-5.

[12] Gang K., Jintang L., Qiaoyu X. Peritectic Solidification of Zn-Ni Alloy with Different Cooling Rates[J]. Special casting & Nonferrous Alloys, 2005, 25(11): 643-645.

[13] Marder A. R. The Metallurgy of Zinc-coated Steel[J]. Progress in Mater Science, 2000, 45: 191-271.