Open AccessDECOMPOSITION OF THE ε-PHASE OBTAINED BY MEANS OF SPLAT QUENCHING IN THE Fe-C-Sb ALLOY
Author(s) -
Chen Xi-Sen,
Yi Sun-Sheng,
Wang Zu-Lun,
Dinghui Wu,
Lin Zhi-Wai,
Li Cun-Li,
Liang Guang-Qi,
Lu Jin-Wen
Publication year - 1981
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.30.849
Subject(s) - quenching (fluorescence) , materials science , alloy , phase (matter) , thermal decomposition , decomposition , analytical chemistry (journal) , diffraction , differential thermal analysis , monochromatic color , work (physics) , metallurgy , thermodynamics , optics , chemistry , physics , fluorescence , organic chemistry , chromatography
This work investigates the high temperature decomposition process of theε-phase obtained by means of splat quenching in the Fe-C-Sb alloy by using differential thermal analysis, quenching sample X-ray diffraction analysis and powder photography employing Guinier-Lenne transmission high temperature monochromatic focusing camera. The results indicate that the ε-phase begins to decompose at 125℃. At first, it decomposes into ε-Fe2C, then α-Fe, Sb and Fe3Sb2 appear at 450℃, but ε-Fe2 Cremains at that temperature. Above 550℃, the ε-Fe2C phase transforms into Fe3C. The transformation of the α-Fe→γ-Fe was found to be at 770℃, and at 800℃ the main phases are:γ-Fe, Sb and Fe3C. The transformation of the γ-Fe→α-Fe was found to take place at 750℃during the cooling. The main phases at room temperature are:α -Fe, Fe3C, Sb and Fe3Sb2.