Thermodynamic optimization of the Ni-Al-Cr-Co system on the base of experimental phase data
| Authors | |
|---|---|
| Year of publication | 2005 |
| Type | Article in Proceedings |
| Conference | JUNIORMAT ' 05 |
| MU Faculty or unit | |
| Citation | |
| Field | Physical chemistry and theoretical chemistry |
| Keywords | thermodynamics; phase equilibria; microstructure; nickel; aluminium; chrom; cobalt |
| Description | The Ni-Al-Cr-Co system has been studied in the gamma + gamma' two-phase field. The phase boundaries and chemical composition of gamma + gamma' phase were calculated by means of the Thermocalc software. The experimental chemical composition of existing phases was measured by means of energy-dispersive X-ray analysis using a scanning mode in transmission electron microscope. The calculated results data were compared with experimental and a necessity of modification of thermodynamic parameters was found. In order for the calculated phase boundaries to match the experimental data, thermodynamic description must be modified. |
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