High entropy alloy nanocomposites produced by high pressure torsion
Source abstract
Abstract
Abstract High-pressure torsion was applied to join two disks of single-phase equiatomic fcc CoCrFeMnNi and bcc HfNbTaTiZr high entropy alloys (HEAs). After 15 revolutions a bulk nanocomposite had developed with alternating nano-lamellae of elongated nanocrystalline CoCrFeMnNi and mixed amorphous-nanocrystalline HfNbTaTiZr, exhibiting complex microstructures with numerous vortex-like regions. While the fcc phase retains a rather homogeneous elemental distribution, the former bcc high entropy alloy experiences a chemical separation towards Ta-rich and Ta-poor phases. The joining of dissimilar HEAs under constrained conditions (cold shut) enables the design of novel HEA-based composites by non-equilibrium processing.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: High Entropy Alloys Studies · High-Temperature Coating Behaviors · Advanced materials and composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (69)
Show source-provided references
1. High-entropy alloys and metallic nanocomposites: processing challenges, microstructure development and property enhancement10.1016/j.mser.2018.04.003 ↗
2. Critical strain for mechanical alloying of Cu–Ag, Cu–Ni and Cu–Zr by high-pressure torsion10.1016/j.scriptamat.2011.06.005 ↗
3. Zhang · 2010
4. Producing bulk ultrafine-grained materials by severe plastic deformation: ten years later10.1007/s11837-016-1820-6 ↗
5. Perspective on hetero-deformation induced (HDI) hardening and back stress10.1080/21663831.2019.1616331 ↗
6. Fabrication of nanocomposites through diffusion bonding under high-pressure torsion10.1557/jmr.2018.205 ↗
7. Kinetic, volumetric and structural effects induced by liquid Ga penetration into ultrafine grained Al10.1016/j.actamat.2015.07.061 ↗
8. The effect of pre-annealing on defects, microstructure and recrystallization of ultra-fine grained Al produced by high-pressure torsion10.1016/j.msea.2017.09.126 ↗
9. On nanostructured molybdenum–copper composites produced by high-pressure torsion10.1007/s10853-017-1142-2 ↗
10. Mechanical alloying via high-pressure torsion of the immiscible Cu50Ta50 system10.1016/j.msea.2016.12.106 ↗
11. Asymmetric accumulative roll bonding of aluminium–titanium composite sheets10.1016/j.msea.2013.04.027 ↗
12. Thermodynamic instability of a nanocrystalline, single-phase TiZrNbHfTa alloy and its impact on the mechanical properties10.1016/j.actamat.2017.09.035 ↗
13. In-situ high-resolution transmission electron microscopy investigation of grain boundary dislocation activities in a nanocrystalline CrMnFeCoNi high-entropy alloy10.1016/j.jallcom.2017.03.194 ↗
14. Evolution of microstructure and mechanical properties of a CoCrFeMnNi high-entropy alloy during high-pressure torsion at room and cryogenic temperatures10.3390/met8020123 ↗
15. Strength enhancement of high entropy alloy HfNbTaTiZr by severe plastic deformation10.1016/j.jallcom.2018.07.319 ↗
16. Nanostructured high-entropy alloys with multiple principal elements: novel alloy design concepts and outcomes10.1002/adem.200300567 ↗
17. Gao · 2016
18. A critical review of high entropy alloys and related concepts10.1016/j.actamat.2016.08.081 ↗
19. Ab initio phase stabilities and mechanical properties of multicomponent alloys: a comprehensive review for high entropy alloys and compositionally complex alloys10.1016/j.matchar.2018.06.019 ↗
20. Microstructural development in equiatomic multicomponent alloys10.1016/j.msea.2003.10.257 ↗
21. Grain boundary diffusion in CoCrFeMnNi high entropy alloy: kinetic hints towards a phase decomposition10.1016/j.actamat.2020.05.009 ↗
22. Microstructure and room temperature properties of a high-entropy TaNbHfZrTi alloy10.1016/j.jallcom.2011.02.171 ↗
23. Entropy determination of single-phase high entropy alloys with different crystal structures over a wide temperature range10.3390/e20090654 ↗
24. Strain mapping at nanometer resolution using advanced nano-beam electron diffraction10.1063/1.4922994 ↗
25. Diffraction contrast imaging using virtual apertures10.1016/j.ultramic.2015.03.015 ↗
26. Shear-induced mixing governs codeformation of crystalline-amorphous nanolaminates
27. Formation of supersaturated solid solutions in the immiscible Ni-Ag system by mechanical alloying10.1063/1.361820 ↗
28. C.W. Sinclair, J.D. Embury, G.C. Weatherly, Basic aspects of the co-deformation of bcc / fcc materials, 272 (1999) 90–98.10.1016/S0921-5093(99)00477-3 ↗
29. Instabilities of interfaces between dissimilar metals induced by high pressure torsion10.1016/j.matlet.2018.03.200 ↗
30. Mixing instabilities during shearing of metals10.1038/s41467-017-01879-5 ↗
31. The dynamics of solid-solid phase transitions 2. Incoherent interfaces10.1007/BF01845217 ↗
32. Dislocation and grain boundary diffusion
33. Kaur · 1995
34. Observations on interphase boundary structure10.1111/j.1365-2818.1974.tb04640.x ↗
35. Structure, energy and migration of phase boundaries in steels
36. A computational approach towards modelling dislocation transmission across phase boundaries10.1080/14786435.2019.1612961 ↗
37. Crystal plasticity modeling of size effects in rolled multilayered Cu-Nb composites10.1016/j.actamat.2016.03.055 ↗
38. Modeling of dislocation interaction with solutes, nano-precipitates and interfaces: a multiscale challenge10.1166/jctn.2010.1486 ↗
39. The presence and nature of vacancy type defects in nanometals detained by severe plastic deformation10.1016/j.msea.2007.06.093 ↗
40. Vacancies in plastically deformed copper
41. Deformation induced vacancies with severe plastic deformation: measurements and modelling10.4028/www.scientific.net/MSF.503-504.57 ↗
42. Combined volumetric, energetic and microstructural defect analysis of ECAP-processed nickel10.1016/j.actamat.2015.10.004 ↗
43. On the processing pathway dependence of microstructure evolution during severe plastic deformation: nickel as a case example10.1002/adem.201500174 ↗
44. Competition between precipitation and dissolution in Cu–Ag alloys under high pressure torsion10.1016/j.actamat.2016.09.024 ↗
45. Phase transformations in Nd–Fe–B-based alloys under high pressure torsion at different temperatures10.1134/S0021364020130020 ↗
46. Construction of phase diagrams for AlxHfNbTaTiZr refractory high entropy alloy10.1007/s12666-017-1221-8 ↗
47. Phase transformations of HfNbTaTiZr high-entropy alloy at intermediate temperatures10.1016/j.scriptamat.2018.08.032 ↗
48. Effect of aluminum on the microstructure and properties of two refractory high-entropy alloys10.1016/j.actamat.2014.01.029 ↗
49. Effects of cold rolling and subsequent annealing on the microstructure of a HfNbTaTiZr high-entropy alloy10.1557/jmr.2016.445 ↗
50. Phase transformations of HfNbTaTiZr high-entropy alloy at intermediate temperatures10.1016/j.scriptamat.2018.08.032 ↗
51. Dislocation cores and unconventional properties of plastic behavior
52. Lothe · 1982
53. Anomalous plasticity of body-centered-cubic crystals with non-Schmid effect10.1016/j.ijsolstr.2018.01.029 ↗
54. Solid state amorphization of metastable Al0.5TiZrPdCuNi high entropy alloy investigated by high voltage electron microscopy10.1016/j.matchemphys.2017.07.071 ↗
55. Alloy composition, deformation temperature, pressure and post-deformation annealing effects in severely deformed Ti-Ni based shape memory alloys10.1016/j.actamat.2005.02.032 ↗
56. Calorimetric study of amorphization in planar, binary, multilayer, thin-film diffusion couples of Ni and Zr10.1103/PhysRevLett.57.2295 ↗
57. Solid state amorphization reactions in deformed Ni—Zr multilayered composites10.1557/JMR.1990.0488 ↗
58. Amorphization of TiNi induced by high-pressure torsion10.1080/09500830310001657353 ↗
59. Annealing behaviour of nanocrystalline NiTi (50 at% Ni) alloy produced by high-pressure torsion10.1080/14786435.2011.566228 ↗
60. Gottstein · 2004
61. High pressure torsion-induced amorphous phase in a multilayer V-10Ti-5Cr/Zr-2.5Nb/V-10Ti-5Cr hybrid material10.1016/j.matlet.2018.09.112 ↗
62. Ductile crystalline-amorphous nanolaminates10.1073/pnas.0702344104 ↗
63. Amorphization of TiNi induced by high-pressure torsion10.1080/09500830310001657353 ↗
64. Plastic deformation modes of CuZr/Cu multilayers10.1038/srep23306 ↗
65. Deformation profile and interface-mediated defect interaction in Cu/CuZr nanolaminates: an effective-temperature description
66. Formation and thermal stability ofω-Ti(Fe) inα-phase-based Ti(Fe) alloys
67. Routes to control diffusive pathways and thermal expansion in Ti-alloys10.1038/s41598-020-60038-x ↗
68. A novel stress-induced martensitic transformation in a single-phase refractory high-entropy alloy10.1016/j.scriptamat.2020.08.013 ↗
69. High-pressure torsion deformation induced phase transformations and formations: new material combinations and advanced properties10.2320/matertrans.MF201930 ↗