Инд. авторы:	Terasaki H., Shibazaki Y., Nishida K., Tateyama R., Takahashi S., Ishii M., Shimoyama Y., Ohtani E., Funakoshi K., Higo Y.
Заглавие:	Repulsive nature for hydrogen incorporation to Fe3C up to 14 GPa
Библ. ссылка:	Terasaki H., Shibazaki Y., Nishida K., Tateyama R., Takahashi S., Ishii M., Shimoyama Y., Ohtani E., Funakoshi K., Higo Y. Repulsive nature for hydrogen incorporation to Fe3C up to 14 GPa // ISIJ International. - 2014. - Vol.54. - Iss. 11. - P.2637-2642. - ISSN 0915-1559. - EISSN 1347-5460.
Внешние системы:	DOI: 10.2355/isijinternational.54.2637; РИНЦ: 24014417; SCOPUS: 2-s2.0-84917706725; WoS: 000345485100028;
Реферат:	eng: We have performed in situ X-ray diffraction measurements under high pressure and high temperature to study hydrogen solubility in Fe3C carbide. Hydrogen solubility can be estimated from a volume expansion associated with hydrogen incorporation into metal. The lattice volumes and phase relations of Fe3C-H system and Fe3C were measured up to 14 GPa and 1973 K. The lattice volumes of Fe3C measured in this study are well fitted using the 3rd order Birch-Murnaghan equation of state with the reported elastic parameters of Fe3C. Obtained lattice volumes of Fe3C-H are quite consistent with those of Fe3C. No difference between the melting temperatures of Fe3C-H and Fe3C was observed. These results demonstrate that hydrogen incorporation into Fe3C does not occur and hydrogen is unlikely to coexist with carbon in iron-alloy up to 14 GPa. © 2014 ISIJ.
Ключевые слова:	Situ x-ray diffraction; Iron carbides; Hydrogen solubility; Hydrogen incorporation; High pressure and high temperature; High pressure; Elastic parameters; Birch-Murnaghan equation of state; X ray diffraction; Solubility; Hydrogen; Equations of state of solids; Carbides; Iron carbide; Hydrogen solubility; High pressure; Iron alloys;
Издано:	2014
Физ. характеристика:	с.2637-2642