On the microstructural evolution and accelerated magnetocaloric phase formation in La-Fe-Si alloys by hot forging deformation
Source abstract
Abstract
Abstract To solve the difficulty in forming magnetocaloric phase in La-Fe-Si alloys due to intrinsic incompleteness of peritectic reaction and slow diffusion rate, we proposed here a new approach of hot forging deformation to accelerate the phase formation. The evolution of phase constitution, grain structure and magnetocaloric effect has been systematically investigated, and the underlying mechanism was revealed. It was found that a novel microstructure, consisting of refined layer phases and high-density grain boundaries, formed during the forging deformation and played a key role in promoting the phase formation process. As a result, a dominant La(Fe, Si) 13 phase with a volume fraction of 82.2% was obtained in the 84.4% deformed sample after annealing at 1323 K for only 1 h. This led to a large magnetic entropy change of 14.6 J/kg K at 2 T compared with 1.3 J/kg K for the non-deformed sample. A prominent magnetic entropy change of 19.4 J/kg K at 2 T was obtained after annealing for 12 h and hydrogenating, and the integrity of the sample was maintained. The current results suggest that the hot forging deformation effectively facilitates the magnetocaloric phase formation in La-Fe-Si alloys, and becomes a promising route for mass production of near-net-shape magnetic refrigerants.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Shape Memory Alloy Transformations · Magnetic Properties of Alloys
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (52)
Show source-provided references
1. Caloric materials for cooling and heating10.1126/science.abb0973 ↗
2. Exploring La(Fe, Si)13-based magnetic refrigerants towards application10.1016/j.scriptamat.2012.05.039 ↗
3. Developments in magnetocaloric refrigeration10.1088/0022-3727/38/23/R01 ↗
4. Giant magnetocaloric effect in Gd5(Si2Ge2)10.1103/PhysRevLett.78.4494 ↗
5. Magnetocaloric effect in MnFe(P, Si, Ge) compounds10.1063/1.2170589 ↗
6. Giant magnetocaloric effect of MnAs1−xSbx in the vicinity of first-order magnetic transition10.1016/S0921-4526(02)01822-7 ↗
7. Recent progress in exploring magnetocaloric materials10.1002/adma.200901072 ↗
8. Magnetocaloric effect and its relation to shape-memory properties in ferromagnetic Heusler alloys
9. Great magnetic entropy change in La(Fe, M)13 (M= Si, Al) with Co doping
10. Itinerant electron metamagnetic transition in La(FexSi1−x)13 intermetallic compounds10.1063/1.370471 ↗
11. The performance of a large-scale rotary magnetic refrigerator10.1016/j.ijrefrig.2013.09.025 ↗
12. LaFeSi-based magnetocaloric material analysis: Cyclic endurance and thermal performance results10.1016/j.ijrefrig.2020.12.004 ↗
13. Magnetocaloric properties of La(Fe, Co, Si)13 bulk material prepared by powder metallurgy10.1109/TMAG.2008.2002523 ↗
14. Structural and magnetic properties of magnetocaloric LaFe13−xSix compounds synthesized by high energy ball-milling10.1016/j.intermet.2010.07.022 ↗
15. Direct formation of NaZn13-structure La(Fe, Si)13 phase by directional solidification10.1016/j.matlet.2017.01.084 ↗
16. Microstructure and isothermal magnetic entropy change of La(Fe0.89Si0.11)13 in a single-phase formation process by annealing10.1016/j.jallcom.2013.03.036 ↗
17. The structure and large magnetocaloric effect in rapidly quenched LaFe11.6Si1.4 compound
18. Phase formation and magnetocaloric effect in rapidly quenched La(Fe1−xCox)11.4Si1.610.1063/1.2137884 ↗
19. Microstructures of (Fe0.88Co0.12)82 La7Si11 prepared by arc-melting/melt spinning and subsequent annealing10.1007/s00339-005-3328-8 ↗
20. Heat treatment and formation of magnetocaloric 1: 13 phase in LaFe11.4Si1.2Co0.4 processed by laser beam melting10.3390/ma13030773 ↗
21. High-temperature phase transition and magnetic property of LaFe11.6Si1.4 compound10.1016/j.jallcom.2011.05.054 ↗
22. The effect of different temperature annealing on phase relation of LaFe11.5Si1.5 and the magnetocaloric effects of La0.8Ce0.2Fe11.5−xCoxSi1.5 alloys10.1016/j.jmmm.2011.05.041 ↗
23. Phase relation of LaFe11.6Si1.4 compounds annealed at different high-temperature and the magnetic property of LaFe11.6−xCoxSi1.4 compounds10.1007/s12034-012-0273-y ↗
24. Microstructural evolution and phase transition dependent on annealing temperature and carbon content for LaFe11.5Si1.5Cx compounds prepared by arc-melting10.1016/j.intermet.2013.03.022 ↗
25. A systematic study of the microstructure, phase formation and magnetocaloric properties in off-stoichiometric La–Fe–Si alloys10.1016/j.actamat.2016.07.039 ↗
26. Effect of severe plastic deformation on the specific heat and magnetic properties of cold rolled Gd sheets10.1063/1.4916377 ↗
27. Plastically deformed Gd-X (X=Y, In, Zr, Ga, B) solid solutions for magnetocaloric regenerator of parallel plate geometry10.1016/j.jallcom.2018.04.264 ↗
28. Getting magnetocaloric materials into good shape: Cold-working of La(Fe, Co, Si)13 by powder-in-tube-processing10.1016/j.mtener.2018.05.009 ↗
29. Plastically deformed La–Fe–Si: Microstructural evolution, magnetocaloric effect and anisotropic thermal conductivity10.1016/j.actamat.2020.01.030 ↗
30. High-performance solid-state cooling materials: Balancing magnetocaloric and non-magnetic properties in dual phase La–Fe–Si10.1016/j.actamat.2016.12.014 ↗
31. Numerical simulation for stress/strain distribution and microstructural evolution in 42CrMo steel during hot upsetting process10.1016/j.commatsci.2008.03.010 ↗
32. NIH Image to ImageJ: 25 years of image analysis10.1038/nmeth.2089 ↗
33. Magnetic measurements: a powerful tool in magnetic refrigerator design10.1063/1.358648 ↗
34. Micromechanical behavior of multilayered Ti/Nb composites processed by accumulative roll bonding: an in-situ synchrotron X-ray diffraction investigation
35. Texture control in the production of grain oriented silicon steels10.2355/isijinternational.29.809 ↗
36. Analysis on deformation and texture formation mechanism of hot-deformed Nd-Fe-B magnets based on heterogeneous structure evolution10.1016/j.jmst.2020.11.051 ↗
37. A model of continuous dynamic recrystallization10.1016/S1359-6454(03)00078-8 ↗
38. Cube texture evolution and magnetic properties of 6.5 wt% Si electrical steel fabricated by surface energy and three-stage rolling method10.1016/j.jmmm.2018.02.059 ↗
39. Magnetic properties of RFeSi (R=La-Sm, Gd-Dy) from susceptibility measurements and neutron diffraction studies10.1016/0925-8388(92)90045-B ↗
40. Effect of α-Fe impurities on the field dependence of magnetocaloric response in LaFe11.5Si1.510.1016/j.jallcom.2015.06.085 ↗
41. Formation of tree-like and vortex magnetic domains of nanocrystalline α-(Fe, Si) in La–Fe–Si ribbons during rapid solidification and subsequent annealing10.1016/j.jallcom.2016.01.211 ↗
42. Making the most of the magnetic and lattice entropy changes10.1016/j.jmmm.2008.03.013 ↗
43. Determination of the entropy changes in the compounds with a first-order magnetic transition10.1063/1.2425033 ↗
44. Magnetocaloric properties response in high-speed melt-spun La-Ce-Fe-Si ribbons10.1007/s11664-016-4626-y ↗
45. Large magnetocaloric effect in melt-spun LaFe13−xSix10.1063/1.1847871 ↗
46. Large entropy change, adiabatic temperature change, and small hysteresis in La(Fe, Mn)11.6Si1.4 strip-cast flakes10.1016/j.jmmm.2014.10.035 ↗
47. Effects of the excess iron on phase and magnetocaloric property of LaFe11.6*xSi1.4 alloys10.1016/S1002-0721(14)60559-7 ↗
48. Itinerant-electron metamagnetic transition and large magnetocaloric effects in La(FexSi1−x)13 compounds and their hydrides10.1103/PhysRevB.67.104416 ↗
49. Systematic investigation of Mn substituted La(Fe, Si)13 alloys and their hydrides for room-temperature magnetocaloric application10.1016/j.jallcom.2014.02.015 ↗
50. Phase equilibria in the Fe–La–Si ternary system10.1016/j.intermet.2011.06.005 ↗
51. Lattice and grain boundary diffusion in polycrystals10.2320/matertrans1960.2.25 ↗
52. Formation of 1:13 phase in La (Fe, Si)13-based compounds by diffusion of LaFe, Si/α-Fe(Si) couple10.1109/TMAG.2012.2199964 ↗