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Titolo:
Phase diagram in the iron-rich corner of the Fe-Cr-Mo-V-C system below 1000 K
Autore:
Kroupa, A; Havrankova, J; Coufalova, M; Svoboda, M; Vrestal, J;
Indirizzi:
Acad Sci Czech Republ, Inst Phys Mat, Brno 61662, Czech Republic Acad Sci Czech Republ Brno Czech Republic 61662 no 61662, Czech Republic Masaryk Univ, Fac Sci, Inst Phys Chem, Brno, Czech Republic Masaryk Univ Brno Czech Republic , Inst Phys Chem, Brno, Czech Republic
Titolo Testata:
JOURNAL OF PHASE EQUILIBRIA
fascicolo: 3, volume: 22, anno: 2001,
pagine: 312 - 323
SICI:
1054-9714(200106)22:3<312:PDITIC>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
THERMODYNAMIC EVALUATION; TEMPER EMBRITTLEMENT; MODEL; STEEL; STABILITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
47
Recensione:
Indirizzi per estratti:
Indirizzo: Kroupa, A Acad Sci Czech Republ, Inst Phys Mat, Brno 61662, Czech RepublicAcad Sci Czech Republ Brno Czech Republic 61662 Czech Republic
Citazione:
A. Kroupa et al., "Phase diagram in the iron-rich corner of the Fe-Cr-Mo-V-C system below 1000 K", J PH EQUIL, 22(3), 2001, pp. 312-323

Abstract

Relevant experimental phase equilibria were used with the THERMOCALC program to refine thermodynamic parameters for the low-temperature region, in the steels with composition 0.4 to 2.5 wt.% Cr, 0 to 1 wt.% Mo, and 0 to 0.5 wt.% V. The refined parameters were used to calculate phase relationships, which were then compared with experimental results. The main interest was focused on the temperature and concentration regionsof existence of the chromium-rich carbides M7C3 and M23C6 and Mo-rich carbides M6C and MIG. Results of experiments indicate that M7C3 carbide replaces M23C6 carbide in the temperature region between 773 and 873 K. Similar behavior was also found for molybdenum-rich phases M6C and M2C. Some modifications of existing thermodynamic parameters in the low-temperature region, as well as the establishment of some new parameters, were necessary to obtain reasonable agreement between theoretical and experimental results.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/12/20 alle ore 22:17:22