450 °C and 600 °C Isothermal Sections of the Zn-Cr-Si Ternary Phase Diagram
- 10 Downloads
The 450 and 600 °C isothermal sections of the Zn-Cr-Si system were experimentally constructed using scanning electron microscopy equipped with energy dispersive x-ray spectrometry, and x-ray diffraction. Six three-phase regions in the 450 °C section and five three-phase regions in the 600 °C section were identified experimentally. No ternary compound was found. Si has low solubility in CrZn17. The Zn solubility in CrSi2, Cr5Si3, and Cr3Si are all less than 2.2 at.%. The CrSi phase cannot be in equilibrium with the η-Zn phase. Thermodynamic extrapolation of the Zn-Cr-Si system was carried out and showed good agreement with experimentally determined phase relationships.
KeywordsZn-Cr-Si system isothermal section phase equilibria thermodynamics
Financial support from the National Science Foundation of China (Grant Nos. 51471037 and 51671036) and a project funded by the Priority Academic Program Development of Jiangsu higher education institutions are greatly acknowledged.
- 1.R.S. Jamwal, M. Norden, B. Ehrhardt, and R. Schoenenberg, Advanced High Strength Steels: Development Concepts, Application and Challenges in Hot Dip Galvanizing, Stahl Undsen, 2014, 133(11), p S96-S110Google Scholar
- 2.J. Lu, C. Che, K. Gang, Q. Xu, and J. Chen, Influence of Silicon on the α-Fe/Γ Interface of Hot-Dip Galvanized Steels, Surf. Coat. Technol., 2006, 200(18–19), p 5277-5281Google Scholar
- 3.R.W. Sandelin, Galvanizing Characteristics of Different Typesof Steels, Wire Wire Prod., 1940, 15, p 3Google Scholar
- 5.V. Raghavan, Fe-Si-Zn (Iron-Silicon-Zinc), J. Phase Equilib., 2004, 35(17), p 395-396Google Scholar
- 8.M. Hansen, Constitution of Binary Alloys, McGraw-Hill, New York, 1958, p 572Google Scholar
- 10.H. Hanemann, Investigation on Zinc-Chromium System, Z. Metallkd, 1940, 32, p 91-92Google Scholar
- 12.T. Heumann, Contribution to the Knowledge of Zinc-Chromium System, Z. Metallkd, 1948, 39, p 45-52Google Scholar
- 28.C.H. Dauben, D.H. Templeton, and C. Myers, The Crystal Structure of Cr5Si3, Acta Crystallogr, 1955, 14(12), p 1289-1290Google Scholar