Structure of Superaustenitic Steels After Long-term Annealing

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Authors	SVOBODA Milan SOPOUŠEK Jiří VŘEŠŤÁL Jan
Year of publication	2001
Type	Article in Proceedings
Conference	Seminar on Thermodynamics of Materials
MU Faculty or unit	Faculty of Informatics
Citation
Field	Thermodynamics
Keywords	Thermodynamics; Steels; Equilibrium
Description	Anticorrosion superaustenitic steels reach first equilibrium concerning carbon atoms at higher temperatures (paraequilibrium). Later on, true thermodynamic equilibrium is accomplished after diffusion of substitutional atoms (ortoequilibrium). Later step influences the longevity of materials in exploitation conditions. The structural study was performed on austenitic anticorrosion steels NICROFER 3033 and Avesta 254 SMO after annealing 700 C/500 hrs.
Related projects:	The thermodynamics of equilibrium states and kinetics of phase transformations in the transition metals based systems with N and C