2002
Kinetics of Equilibrium State Setting in Superaustenitic Anticorrosion Steels
SVOBODA, Milan, Jan VŘEŠŤÁL a Jiří SOPOUŠEKZákladní údaje
Originální název
Kinetics of Equilibrium State Setting in Superaustenitic Anticorrosion Steels
Autoři
SVOBODA, Milan (203 Česká republika), Jan VŘEŠŤÁL (203 Česká republika, garant) a Jiří SOPOUŠEK (203 Česká republika)
Vydání
Roma, Thermodynamics of Alloys TOFA 2002, od s. OR40, 1 s. 2002
Nakladatel
Universita di Roma "La Sapiensa"
Další údaje
Jazyk
angličtina
Typ výsledku
Stať ve sborníku
Obor
10403 Physical chemistry
Stát vydavatele
Itálie
Utajení
není předmětem státního či obchodního tajemství
Kód RIV
RIV/00216224:14330/02:00006366
Organizační jednotka
Fakulta informatiky
Klíčová slova anglicky
ThernoCalc;phase;diffusion;CALPHAD
Štítky
Změněno: 31. 5. 2003 15:16, RNDr. JUDr. Vladimír Šmíd, CSc.
Anotace
V originále
Superaustenitic steels are commonly used as corrosion resistant materials at higher temperatures. It is known, that the structure state of these materials is changed during long-term service, for the slow setting of equilibrium state. The NICROFER 3033 (33Cr, 31Ni, 1.7Mo, O.39N) and AVESTA 254 SMO (20Cr, 18Ni, 6.1Mo, 0.20N) were investigated. The preliminary results of structure analysis (metallography, electron microscopy, electron diffraction) after annealing 700oC/500 hrs. have shown [1], that grains of FCC-phase are still inhomogeneous in the NICROFER 3033 alloy. In the NICROFER 3033, the sigma-phase was detected, as calculated, in the AVESTA 254 SMO, sigma-phase was not found. Therefore, further annealing was performed and the results of structure analysis of mentioned anticorrosion superaustenitic steels after annealing 700oC/3188 hrs are presented. Experimental results are compared with calculated ones.
Návaznosti
| GA106/00/0174, projekt VaV |
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| IBS2041105, projekt VaV |
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