Coherent cluster ordering in Fe-xAl and Fe-xGa alloys
Source abstract
Abstract
Abstract The evolution of structural phases and the morphology of the microstructure of several Fe-xAl and Fe-xGa compositions were studied by neutron diffraction with high Δd/d resolution and with high-intensity continuous scanning in a wide temperature range. It was found that the formation of an ordered structure upon a change in the Al or Ga content or during a phase transition upon a change in temperature leads to a decrease in the unit-cell parameter with a “jump” of the order of Δa/a ~ 0.001. A specific microstructure in the form of mesoscopic clusters (L ~ 200–1000 A) with an ordered atomic structure dispersedly incorporated into a disordered or less ordered matrix can be formed in the ranges of 23 at%
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Research context
OpenAlex topics: Magnetic Properties and Applications · Microstructure and Mechanical Properties of Steels · Magnetic Properties of Alloys
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References (30)
Show source-provided references
1. The formation of superstructure in alloys of iron and aluminium
2. A dilatometric study of the order-disorder transformation in Cu-Au alloys10.1103/PhysRev.60.320 ↗
3. Warren · 1969
4. Constitution and magnetic properties of iron-rich iron-aluminum alloys10.1016/0022-3697(58)90213-0 ↗
5. Structural investigations of Fe-Ga alloys by high-energy x-ray diffraction10.1016/j.jallcom.2018.05.327 ↗
6. Effects of ordering in Fe–xAl alloys10.1134/S0021364019210057 ↗
7. Cluster-like structure of Fе-based alloys with enhanced magnetostriction10.1134/S1027451020070058 ↗
8. Lattice parameter changes on disordering intermetallics10.1016/S0966-9795(99)00035-7 ↗
9. Gusev · 2001 · 454
10. Antiphase domains or dispersed clusters? Neutron diffraction study of coherent atomic ordering in Fe3Al-type alloys10.1016/j.actamat.2018.04.015 ↗
11. Dispersed clusters in (Fe, Cr)3Al alloys: neutron time-of-flight diffraction study
12. Detection and quantification of D03 chemical order in Fe–Ga alloys using high resolution X-ray diffraction10.1016/j.msea.2005.10.035 ↗
13. Microstructure investigation on magnetostrictive Fe100−xGax and (Fe100−xGax)99.8Tb0.2 alloys for 19 ≤ x ≤ 29
14. Coherent cluster atomic ordering in the Fe-27Al intermetallic compound10.1134/S0021364016200078 ↗
15. High resolution Fourier diffraction at the IBR-2 reactor10.1080/10446830500454346 ↗
16. Correlation Fourier diffractometry: 20 years of experience at the IBR-2 reactor10.1134/S1063779615030041 ↗
17. Comparative study of structural phase transitions in bulk and powdered Fe-27Ga alloy by real-time neutron thermodiffractometry10.1107/S1600576716020045 ↗
18. Mechanical spectroscopy as an in situ tool to study first and second order transitions in metastable Fe-Ga alloys10.1016/j.jallcom.2019.03.264 ↗
19. Phase diagram of magnetostrictive Fe-Ga alloys: insights from theory and experiment10.1080/01411594.2018.1556268 ↗
20. Evolution of antiphase ordered domain structure and phase separation activated by ordering
21. Giant heterogeneous magnetostriction in Fe-Ga alloys: effect of trace element doping10.1016/j.actamat.2016.02.056 ↗
22. Local inhomogeneous structural origin of giant magnetostriction in Fe-Ga alloys10.1016/j.jallcom.2017.05.180 ↗
23. S.V. Sumnikov, I.A. Bobrikov, I.S. Golovin, А.M. Balagurov, Bulk vs. Surface Structural Phases in Fe-27Ga Alloy, 2021 (Submitted for publication).10.2139/ssrn.4154301 ↗
24. Temperature evolution of Fe-27Ga structure: comparison of in situ X-ray and neutron diffraction studies10.1107/S1600576720010948 ↗
25. Crystal structure and phase composition evolution during heat treatment of Fe-45Ga alloy
26. M. Greenholz, A. Kidron, The structure of short-range ordered alloys. I. Clustering of ordered cells, Acta Crystallogr., A26, 1970, pp. 306–310. Structure of short-range ordered alloys. II. Ordered zones in a disordered matrix, Acta Crystallogr., A26, 1970, pp. 311–314.10.1107/S0567739470000761 ↗
27. Phase equilibria and stability of ordered b.c.c. phases in the Fe-rich portion of the Fe–Ga system10.1016/S0925-8388(02)00791-0 ↗
28. Effect of annealing in a ferromagnetic state on the structure of an Fe–18 at% Ga alloy10.1134/S1063783419010050 ↗
29. Finding a new B1-type phase in single crystals of Fe–Al and Fe–Ga soft magnetic alloys10.1134/S1063783419110118 ↗
30. Formation mechanism of tetragonal nanoprecipitates in Fe–Ga alloys that dominate the material’s large magnetostriction10.1016/j.scriptamat.2020.04.024 ↗