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@inproceedings{692280,
author = {Hodisz, Zdeněk and Sopoušek, Jiří},
address = {Brno},
booktitle = {VI. Pracovní setkání fyzikálních chemiků a elektrochemiků},
edition = {2006},
keywords = {Equilibria;Calphad;DICTRA; weld;steel;heat-resistant},
language = {eng},
location = {Brno},
pages = {42-43},
publisher = {Masarykova univerzita v Brně},
title = {Carbon Activity in Advanced Steels},
year = {2006}
}
TY - JOUR
ID - 692280
AU - Hodisz, Zdeněk - Sopoušek, Jiří
PY - 2006
TI - Carbon Activity in Advanced Steels
PB - Masarykova univerzita v Brně
CY - Brno
KW - Equilibria;Calphad;DICTRA
KW - weld;steel;heat-resistant
N2 - From thermodynamic points of view, the steels are Fe-Me-L-C based closed systems where Me means the metal elements (Cr, Mo, V, Mn, Ni,...) and L are the light elements (N, B,...). The steel phase microstructure depends on the heat treatment during production and exploitation. A major phase is solid solution and minor phases are different stoichiometric and/or non-stoichiometric phases (carbides, carbonitrides, nitrides, intermetallic phases). Thermodynamics deals with equilibrium states, which can be experimentally reached within reasonable annealing time for the steels only at temperatures above approximately 500stC. The equilibrated phases coexisting at given temperature, pressure, and composition can be found on phase diagram of the steel. Another way is to identify equilibrated phases experimentally after long time equilibrating. The carbon activity in steel at given temperature and pressure is very important value, which cannot be evaluate by single experimental way at present.
ER -
HODISZ, Zdeněk a Jiří SOPOUŠEK. Carbon Activity in Advanced Steels. In \textit{VI. Pracovní setkání fyzikálních chemiků a elektrochemiků}. 2006. vyd. Brno: Masarykova univerzita v Brně, 2006, s.~42-43.
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