Abstract
Abstract The 600 and 800 °C isothermal sections of the Al–Cr–Sn ternary system were determined based on examination of equilibrated alloys by X-ray diffraction and scanning electron microscopy coupled with energy dispersive spectroscopy. The experimental results indicate that seven and four three-phase regions exist in the Al–Cr–Sn system at 600 °C and 800 °C, respectively. The Al11Cr2 phase is found in both two isothermal sections. The Al11Cr4 Phase is confirmed, and is stable in the 600 °C isothermal section; its decomposition temperature is between 690 °C and 800 °C. The solubility of Sn in Al–Cr binary compounds is negligible. Six intermediate phases, i.e., Al7Cr, Al11Cr2, Al4Cr, Al11Cr4, Al8Cr5 and AlCr2, and no ternary compounds are found in this work.
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