Abstract
Phase equilibria of the Ni-Cr-Si ternary system at 1000 and 1100 °C have been experimentally investigated by means of electron probe microanalyzer (EPMA) and x-ray diffraction (XRD) analysis on the equilibrated alloys. In the present work, the existence of the ternary compounds of σ (Cr13Ni5Si2), π (Cr3Ni5Si2), τ1 (Cr2Ni2Si) and τ2 (Cr3Ni3Si4), at both 1000 and 1100 °C is confirmed. The binary γ (Ni31Si12), δ (Ni2Si), and CrSi phases exhibit a considerable solubility of a third element. Additionally, a liquid phase region is found at 1100 °C in the ranges of 15.5-21.3 at.% Cr and 22.1-25.1 at.% Si.
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This work was supported by the National Natural Science Foundation of China (Grant Nos. 51031003 and 50971159) and the Ministry of Education of China (Grant Nos. 201201200130004). The support from National Key Basic Research Program of China (973 Program, 2012CB825700) and the Aviation Industry Corporation of China are also acknowledged.
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Liu, X., Lin, M., Yang, S. et al. Experimental Investigation of Phase Equilibria in the Ni-Cr-Si Ternary System. J. Phase Equilib. Diffus. 35, 334–342 (2014). https://doi.org/10.1007/s11669-014-0279-9
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DOI: https://doi.org/10.1007/s11669-014-0279-9