Az ESTPHAD koncepció
III. rész: Ternér eutektikus típusú egyensúlyi fázisdiagram
Absztrakt
Másodközlés
Eredeti közlemény:
The ESTPHAD Concept: An Optimised SetofSimplified Equations to Estimate the Equilibrium Liquidus and Solidus Temperatures, Partition Ratios and Liquidus Slopes for Quick Access to Equilibrium Data in Solidification Software Part III: Ternary Eutectic-Type Equilibrium Phase Diagram
Gergely Kőrösy, András Roósz, Ádám Végh és Tamás Mende, Metals 2026, 16(1), 80; https://doi.org/10.3390/met16010080
A likvidusz és szolidusz hőmérsékleteket, a binér eutektikumok megszilárdulásának kezdeti hőmérsékletét, valamint a szilárd oldat megoszlási hányadosait a ternér eutektikus típusú Al-Si-Cu ötvözetrendszer Al-sarkán a termodinamikailag megalapozott ESTPHAD módszerrel számoltuk ki. Kimutattuk, hogy ezek az adatok kiszámíthatók a két binér egyensúlyi fázisdiagram likvidusz és szolidusz adataiból (elsőrendű becslés), a két binér fázisdiagram és az eutektikus vályúk adataiból (másodrendű becslés), valamint a két binér fázisdiagram, az eutektikus vályúk, valamint egy (harmadrendű becslés) és sok (negyedrendű becslés) likvidusz és szolidusz izoterma adataiból növekvő pontossággal. A számításokhoz egy Thermo-Calc szoftverrel (4.1.0.4995 verzió) működtetett adatbázist használtunk.
Hivatkozások
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