Detailed Information on Publication Record
2002
Kinetics of Equilibrium State Setting in Superaustenitic Anticorrosion Steels
SVOBODA, Milan, Jan VŘEŠŤÁL and Jiří SOPOUŠEKBasic information
Original name
Kinetics of Equilibrium State Setting in Superaustenitic Anticorrosion Steels
Authors
SVOBODA, Milan (203 Czech Republic), Jan VŘEŠŤÁL (203 Czech Republic, guarantor) and Jiří SOPOUŠEK (203 Czech Republic)
Edition
Roma, Thermodynamics of Alloys TOFA 2002, p. OR40, 1 pp. 2002
Publisher
Universita di Roma "La Sapiensa"
Other information
Language
English
Type of outcome
Stať ve sborníku
Field of Study
10403 Physical chemistry
Country of publisher
Italy
Confidentiality degree
není předmětem státního či obchodního tajemství
RIV identification code
RIV/00216224:14330/02:00006366
Organization unit
Faculty of Informatics
Keywords in English
ThernoCalc;phase;diffusion;CALPHAD
Tags
Změněno: 31/5/2003 15:16, RNDr. JUDr. Vladimír Šmíd, CSc.
Abstract
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.
Links
| GA106/00/0174, research and development project |
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| IBS2041105, research and development project |
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