Abstract
The constitution of the ternary system Al-Cr-Ni is investigated over the entire composition range using X-ray diffraction (XRD), energy dispersive X-ray analysis (EDXA), differential thermal analysis (DTA) up to 1500 °C, and metallography. The ternary phase τ1 is confirmed. Its crystal structure, homogeneity range, and melting temperature are corroborated. Two additional ternary phases, labeled τ2 and τ3, are stable at 700 °C. Their compositions are Al77.5Cr12.5Ni10 and Al80Cr15Ni5, respectively. Their XRD powder patterns are shown. The isothermal section at 700 °C and the reaction scheme linking it with the liquidus surface are presented. The Al-rich part of the liquidus surface is characterized by an eutectic trough, which descends monotonously from the pseudobinary maximum emax1: L = NiAl + (Cr) at 1433 ± 1 °C through a series of transition reactions and ends in the ternary eutectic E2: L = Cr7Al45 + NiAl3 + (Al) at 639 °C.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
