The Al-Co-Ni system is essential to both Co- and Ni-based superalloys. In this study phase relationships among A1, L12 and B2 at 800 °C have been investigated by using equilibrated alloys. Four samples were prepared and annealed at 800 °C for 14 days. SEM-EDXS and XRD were used to analyze the annealed samples. The results indicated that...
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2018 (v1)PublicationUploaded on: April 14, 2023
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2019 (v1)Publication
An understanding of the thermodynamic and phase diagram data for the Al-Co-Fe system is essential for Co-based superalloys as well as high entropy alloys. In this study a thermodynamic assessment of the entire Al-Co-Fe system has been made according to the CALPHAD method after a critical review of the relevant literature data. The...
Uploaded on: April 14, 2023 -
2020 (v1)Publication
In the framework of the CALPHAD approach to the thermodynamic modelling of solid solution phases inmulticomponent alloy systems, the Compound Energy Formalism has been successfully used for severalyears. However, for a few important phases with relatively complex crystal structure such assandmphases, many different descriptions have been used...
Uploaded on: April 14, 2023 -
2023 (v1)Publication
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Uploaded on: February 14, 2024 -
2022 (v1)Publication
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Uploaded on: February 14, 2024 -
2021 (v1)Publication
Metallic coatings can improve the high temperature resistance of superalloys serving in the gas turbines. In general they are Al–Co–Cr–Ni alloys with small Y additions to improve oxide scale adherence. In order to complete the construction of a thermodynamic database for coatings, thermodynamic assessments of four ternary systems have been...
Uploaded on: April 14, 2023