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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