In situ neutron diffraction study of bulk phase transitions in Fe-27Ga alloys. (15th May 2016)

• Record Type: Journal Article
• Authors: Golovin, I.S.; Balagurov, А.M.; Palacheva, V.V.; Bobrikov, I.A.; Zlokazov, V.B.
• Is Part Of: Materials & design. Volume 98(2016)
• Page Start: 113
• Page End: 119
• Publication Date: 2016-05-15
• Subjects: Fe-27Ga alloy -- Neutron scattering -- Phase transitions -- Internal friction; Materials -- Periodicals; Engineering design -- Periodicals; Matériaux -- Périodiques; Conception technique -- Périodiques; Electronic journals; 620.11
• DOI: 10.1016/j.matdes.2016.03.016
• Languages: English
• ISSNs: 0264-1275

Abstract

Abstract: Neutron diffraction technique was applied to study phase transitions in Fe-27 at.% Ga alloys at instant heating and subsequent cooling in the 20–980 °C temperature range. The following sequence of phase transitions D03 → L12 → D019 → A2 was recorded at heating and A2 → D019 → L12 at cooling. This transition sequence determines temperature dependencies of elastic and magnetic properties. The only D03 → L12 transition generates internal stresses due to a different rate of an increase in the lattice parameter with temperature. This effect is resulted in the internal friction transient effect. Graphical abstract: Highlights: Neutron diffraction technique is applied to study in situ phase transitions in Fe-27 at.% Ga. D03 → L12 → D019 → A2 transitions were recorded at instant heating in Fe-27 at.% Ga. The D03 → L12 transition generates internal stresses and results in an internal friction transient peak.