Enhanced plasticity of FeCoBSiNb bulk glassy alloys by controlling the structure heterogeneity with Cu addition
Source abstract
Abstract
Abstract In this work, an FeCoBSiNbCu bulk glassy alloy (BGA) with a diameter up to 4 mm was successfully prepared by copper mold casting method. The (Fe0.5Co0.5)71.6B20Si4Nb4Cu0.4 BGA exhibits a high strength over 4 GPa and an enhanced plasticity of 3.7%, combined with good soft magnetic properties. A well-developed vein pattern on the fracture surface and highly dense multiple shear bands throughout the overall rod were observed on the deformed specimen. The improved plasticity is strongly related to the nano-scale heterogeneous structure introduced to the glassy alloy by phase separation with minor Cu addition, which can hinder the propagation of shear bands, promote multiple shearing and enhance the plasticity. This work might have a guiding significance for a deep-understanding of the plastic deformation mechanism of Fe-based BGA in a high strength level.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metallic Glasses and Amorphous Alloys · High Entropy Alloys Studies · Nanoporous metals and alloys
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (34)
Show source-provided references
1. Thermal and magnetic properties of bulk Fe-based glassy alloys prepared by copper mold casting10.2320/matertrans1989.36.1427 ↗
2. Bulk ferromagnetic glasses prepared by flux melting and water quenching10.1063/1.124273 ↗
3. Soft magnetic bulk glassy Fe-B-Si-Nb alloys with high saturation magnetization above 1.5 T10.2320/matertrans.43.766 ↗
4. Bulk glassy Fe-Ga-P-C-B-Si alloys with high glass-forming ability, high saturation magnetization and good soft magnetic properties10.2320/matertrans.43.1235 ↗
5. Structural amorphous steels10.1103/PhysRevLett.92.245503 ↗
6. Super-high strength of over 4000 MPa for Fe-based bulk glassy alloys in [(Fe1-xCox)0.75B0.2Si0.05]96Nb4 system10.1016/j.actamat.2004.05.022 ↗
7. A new Fe-based bulk glassy alloy with outstanding mechanical properties
8. Superhigh strength and good soft-magnetic properties of (Fe,Co)-B-Si-Nb bulk glassy alloys with high glass-forming ability10.1063/1.1827349 ↗
9. Excellent soft-ferromagnetic bulk glassy alloys with high saturation magnetization10.1063/1.2189910 ↗
10. Effects of Cu additions on mechanical and soft-magnetic properties of CoFeBSiNb bulk metallic glasses10.1016/j.jallcom.2017.12.176 ↗
11. Ductile FeNi-based bulk metallic glasses with high strength and excellent soft magnetic properties10.1016/j.jallcom.2018.01.317 ↗
12. Fe-based bulk glassy alloy composite containing in situ formed α-(Fe,Co) and (Fe,Co)23B6 microcrystalline grains10.1063/1.2348737 ↗
13. Cu clustering and Si partitioning in the early crystallization stage of an Fe73.5Si13.5B9Nb3Cu1 amorphous alloy10.1016/S1359-6454(98)00392-9 ↗
14. Three-dimensional atom probe study of Fe-B-based nanocrystalline soft magnetic materials10.1016/j.actamat.2009.06.008 ↗
15. Enhanced glass forming ability of Fe-based amorphous alloys with minor Cu addition10.1016/j.jnoncrysol.2015.03.035 ↗
16. Structure evolution of soft magnetic (Fe36Co36B19.2Si4.8Nb4)100-xCux (x = 0 and 0.5) bulk glassy alloys10.1016/j.actamat.2015.05.042 ↗
17. Classification of bulk metallic glasses by atomic size difference, heat of mixing and period of constituent elements and its application to characterization of the main alloying element10.2320/matertrans.46.2817 ↗
18. Cu clustering and Si partitioning in the early crystallization stage of an Fe73.5Si13.5B9Nb3Cu1 amorphous alloy10.1016/S1359-6454(98)00392-9 ↗
19. Crystallization behaviors of FeSiBPMo bulk metallic glasses10.1016/j.jnoncrysol.2012.10.010 ↗
20. Fe-based bulk metallic glass with high plasticity10.1063/1.2437722 ↗
21. Enhancement of plastic deformability in Fe-Ni-Nb-B bulk glassy alloys by controlling the Ni-to-Fe concentration ratio
22. A damage-tolerant glass10.1038/nmat2930 ↗
23. Temperature rise at shear bands in metallic glasses10.1038/nmat1536 ↗
24. Formation, ductile deformation behavior and soft-magnetic properties of (Fe,Co,Ni)-B-Si-Nb bulk glassy alloys10.1016/j.intermet.2005.11.037 ↗
25. FeCoSiBNbCu bulk metallic glass with large compressive deformability studied by time-resolved synchrotron X-ray diffraction10.1063/1.4864671 ↗
26. Enhancement of plasticity of Fe-based bulk metallic glass by Ni substitution for Fe10.1016/j.jallcom.2010.02.058 ↗
27. Fe-Al-P-C-B bulk metallic glass with good mechanical and soft magnetic properties10.1016/j.jallcom.2015.02.205 ↗
28. The effect of Cu on the plasticity of Fe-Si-B-P-based bulk metallic glass10.1016/j.scriptamat.2008.09.008 ↗
29. Improved plasticity of iron-based high- strength bulk metallic glasses by copper-induced nanocrystallization10.1016/j.jnoncrysol.2011.04.004 ↗
30. Enhanced plasticity of Fe-Nb-B-(Ni,Cu) bulk metallic glasses by controlling the heterogeneity and elastic constants10.1016/j.jallcom.2011.10.026 ↗
31. Enhancement of plastic deformation in FeCoNbB bulk metallic glass with; superhigh strength10.1016/j.intermet.2012.09.018 ↗
32. Fe-based bulk metallic glass matrix composite with large plasticity10.1016/j.scriptamat.2009.10.024 ↗
33. Solidification behavior, glass forming ability and thermal characteristics of soft magnetic Fe-Co-B-Si-Nb-Cu bulk amorphous alloys10.1016/j.intermet.2011.05.004 ↗
34. Grain size dependence of coercivity and permeability in nanocrystalline ferromagnents10.1109/20.104389 ↗