In situ study of phase transformations in the metastable Fe-42Ga alloy

被引：0
|
作者：
Vershinina, T.N. [1 ,2 ,3 ]
Sumnikov, S.V. [1 ,3 ]
Yapryntsev, M.N. [4 ]
Balagurov, A.M. [1 ,3 ,5 ]
Palacheva, V.V. [1 ,3 ]
Golovin, I.S. [1 ,3 ]
机构：
[1] Joint Institute for Nuclear Research, Dubna, Russia
[2] Dubna State University, Dubna, Russia
[3] National University of Science and Technology MISIS, Moscow, Russia
[4] Belgorod State National Research University, Belgorod, Russia
[5] Lomonosov Moscow State University, Moscow, Russia
来源：
Journal of Alloys and Compounds | 1600年 / 1002卷
基金：
俄罗斯科学基金会;
关键词：
Cooling - Gallium alloys - Iron alloys - Metastable phases - Neutron diffraction;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The evolution of the structural phases of the Fe-42.4 at% Ga alloy was studied using neutron diffraction performed with high-intensity continuous scanning in a wide temperature range. The sequence of occurrence of structural states both during heating and subsequent cooling is reported. The structural phases Fe13Ga13, Fe13Ga9, α-Fe6Ga5, D03, L12, A2 are present in the alloy and they disappear upon heating above 800 °C into the partially ordered B2/A2 phase. The high-temperature Fe13Ga13 intermetallic compound exists in two temperature ranges: 25–580 °С and 770–800 °С during heating and precipitates again during cooling. The persistence of the phase upon cooling down to room temperature is inconsistent with the phase diagram, indicating that the alloy remains in a metastable state after the heating and subsequent cooling. The D03, α-Fe6Ga5 and L12 phases are formed during cooling. © 2024 Elsevier B.V.
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