Diffuse electron scattering reveals kinetic frustration as origin of order in CoCrNi medium entropy alloy
Source abstract
Abstract
Equimolar CoCrNi is driven towards a long-range structure with transformation characteristics similar to that of a strain glass alloy due to the specific stoichiometry and applied aging conditions. This work illustrates the frustrated and kinetically arrested state of this alloy, which develops nano-size, single-phase, isostructural ordered domains at temperatures above 1273 K within a matrix of solid solution. Upon aging at lower temperatures, both atomistic simulation and TEM investigation demonstrate the chemical sensitivity of the matrix by localized symmetry changes which suppress any long-range transformation, mirroring the kinetics observed in strain-glass alloys. Careful quantification of experimental and simulated diffraction patterns from various aging conditions reveal the degree of order in CoCrNi to increase given longer aging times, with achievement of longer domain length scales only when subjected to temperatures below 873 K. This evidence indicates a kinetically constrained, chemically sensitive transition from a disordered fcc to a partially ordered, lower symmetry structure given adequate aging time and temperature. Magnetic effects on the transformation are dictated on the specific alloy stoichiometry and aging temperature, which act to amplify any effects of the glassy kinetics.
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Research context
OpenAlex topics: High Entropy Alloys Studies · High-Temperature Coating Behaviors · Additive Manufacturing Materials and Processes
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (81)
Show source-provided references
1. Formation of simple crystal structures in Cu-Co-Ni-Cr-Al-Fe-Ti-V alloys with multiprincipal metallic elements10.1007/s11661-006-0234-4 ↗
2. Single-phase high-entropy alloys–an overview
3. Microstructural development in equiatomic multicomponent alloys10.1016/j.msea.2003.10.257 ↗
4. Phase stability of B2-ordered ZrTiHfCuNiFe high entropy alloy10.1016/j.intermet.2019.106515 ↗
5. Single-phase high-entropy intermetallic compounds (HEICs): bridging high-entropy alloys and ceramics10.1016/j.scib.2019.05.007 ↗
6. Sc–Zr–Nb–Rh–Pd and Sc–Zr–Nb–Ta–Rh–Pd high-entropy alloy superconductors on a CsCl-type lattice10.1021/acs.chemmater.7b04578 ↗
7. New multiphase compositionally complex alloys driven by the high entropy alloy approach10.1016/j.matchar.2018.06.036 ↗
8. Machine learning approach to predict new multiphase high entropy alloys10.1016/j.scriptamat.2021.113804 ↗
9. High-entropy alloys with heterogeneous microstructure: processing and mechanical properties10.1016/j.pmatsci.2020.100709 ↗
10. Strengthening in multi-principal element alloys with local-chemical-order roughened dislocation pathways
11. Refractory high-entropy alloys10.1016/j.intermet.2010.05.014 ↗
12. A critical review of high entropy alloys and related concepts10.1016/j.actamat.2016.08.081 ↗
13. An assessment of the lattice strain in the CrMnFeCoNi high-entropy alloy10.1016/j.actamat.2016.09.032 ↗
14. Local structure and short-range order in a NiCoCr solid solution alloy10.1103/PhysRevLett.118.205501 ↗
15. Chemical complexity induced local structural distortion in NiCoFeMnCr high-entropy alloy10.1080/21663831.2018.1478332 ↗
16. Short-range order and its impact on the CrCoNi medium-entropy alloy
17. Determination of peak ordering in the CrCoNi medium-entropy alloy via nanoindentation10.1016/j.actamat.2022.118380 ↗
18. Data-driven electron-diffraction approach reveals local short-range ordering in CrCoNi with ordering effects10.1038/s41467-022-34335-0 ↗
19. Atomic-scale evidence of chemical short-range order in CrCoNi medium-entropy alloy10.1016/j.actamat.2021.117490 ↗
20. Direct observation of chemical short-range order in a medium-entropy alloy10.1038/s41586-021-03428-z ↗
21. Magnetically driven short-range order can explain anomalous measurements in CrCoNi10.1073/pnas.2020540118 ↗
22. Evidence for strain glass in the ferroelastic-martensitic system Ti 50− x Ni 50+ x10.1103/PhysRevLett.95.205702 ↗
23. Spinodal strain glass in Mn-Cu alloys10.1016/j.actamat.2022.117874 ↗
24. Effects of lattice distortion and chemical short-range order on mechanisms of deofrmation in medium entropy alloy CoCrNi10.1016/j.actamat.2020.08.044 ↗
25. LAMMPS-a flexible simulation tool for particle-based materials modeling at the atomic, meso, and continuum scales10.1016/j.cpc.2021.108171 ↗
26. Scalable parallel Monte Carlo algorithm for atomistic simulations of precipitation in alloys10.1103/PhysRevB.85.184203 ↗
27. Fast parallel algorithms for short-range molecular dynamics10.1006/jcph.1995.1039 ↗
28. Calculation of excess free energies of precipitates via direct thermodynamic integration across phase boundaries10.1103/PhysRevB.86.134204 ↗
29. Efficient implementation of the concentration-dependent embedded atom method for molecular-dynamics and Monte-Carlo simulations10.1088/0965-0393/17/7/075005 ↗
30. Virtual diffraction analysis of Ni [0 1 0] symmetric tilt grain boundaries10.1088/0965-0393/21/5/055020 ↗
31. Relativistic Hartree–Fock X-ray and electron atomic scattering factors at high angles10.1107/S0108767389007567 ↗
32. Prince · 2004
33. Visualization and analysis of atomistic simulation data with OVITO–the Open Visualization Tool10.1088/0965-0393/18/1/015012 ↗
34. An approximate theory of order in alloys10.1103/PhysRev.77.669 ↗
35. Quantum critical behavior in a concentrated ternary solid solution10.1038/srep26179 ↗
36. Yield strength and misfit volumes of NiCoCr and implications for short-range-order10.1038/s41467-020-16083-1 ↗
37. Novel atomic-scale mechanism of incipient plasticity in a chemically complex CrCoNi medium-entropy alloy associated with inhomogeneity in local chemical environment10.1016/j.actamat.2020.05.042 ↗
38. Grain boundary phase transformation in a CrCoNi complex concentrated alloy10.1016/j.actamat.2021.116786 ↗
39. Role of local chemical fluctuations in the shock dynamics of medium entropy alloy CoCrNi10.1016/j.actamat.2021.117380 ↗
40. Phase transition in medium entropy alloy CoCrNi under quasi-isentropic compression10.1016/j.ijplas.2022.103389 ↗
41. Simulation of kinematic Kikuchi diffraction patterns from atomistic structures10.1016/j.mex.2018.09.001 ↗
42. Precession electron diffraction–a topical review10.1107/S2052252514022283 ↗
43. Double conical beam-rocking system for measurement of integrated electron diffraction intensities10.1016/0304-3991(94)90039-6 ↗
44. Strain-rate sensitivity of high-entropy alloys and its significance in deformation10.1080/21663831.2019.1668489 ↗
45. Radiation-assisted chemical short-range order formation in high-entropy alloys10.1016/j.scriptamat.2022.114547 ↗
46. Effect of short-range ordering on stress corrosion cracking susceptibility of Alloy 600 studied by electron and neutron diffraction10.1016/j.actamat.2014.10.009 ↗
47. One hundred years of diffuse scattering10.1080/0889311X.2015.1046853 ↗
48. Effect of stoichiometry on the evolution of thermally annealed long-range ordering in Ni–Cr alloys10.1016/j.mtla.2019.100453 ↗
49. Experimental investigation of the ordering pathway in a Ni-33 at.% Cr alloy10.1016/j.actamat.2016.06.014 ↗
50. Effect of cobalt-content on mechanical properties of non-equiatomic Co–Cr–Ni medium entropy alloys10.2320/matertrans.MT-MK2019004 ↗
51. Cryogenic-deformation-induced phase transformation in an FeCoCrNi high-entropy alloy10.1080/21663831.2018.1434250 ↗
52. Diffuse scattering in electron diffraction patterns. II. Short-range order scattering10.1107/S0567739468000653 ↗
53. Electron diffraction study of short-range-order diffuse scattering from disordered Cu–Pd and Cu–Pt alloys10.1107/S0567739473001300 ↗
54. Atomistic modeling of the order–disorder phase transformation in the Ni2Cr model alloy10.1016/j.actamat.2014.08.017 ↗
55. First-principles study of atomic ordering in fcc Ni-Cr alloys10.1103/PhysRevB.89.064103 ↗
56. Interplay between magnetism and short-range order in medium-and high-entropy alloys: CrCoNi, CrFeCoNi, and CrMnFeCoNi10.1103/PhysRevMaterials.7.053801 ↗
57. Direct evidence for local symmetry breaking during a strain glass transition10.1103/PhysRevLett.112.025701 ↗
58. A FeNiMnC alloy with strain glass transition10.1016/j.pnsc.2018.01.013 ↗
59. Integrating in situ TEM experiments and atomistic simulations for defect mechanics10.1016/j.cossms.2019.03.003 ↗
60. Tunable stacking fault energies by tailoring local chemical order in CrCoNi medium-entropy alloys10.1073/pnas.1808660115 ↗
61. Simulating short-range order in compositionally complex materials10.1038/s43588-023-00407-4 ↗
62. The effect of spin-polarization, atomic ordering and charge transfer on the stability of CoCrNi medium entropy alloy10.1016/j.matchemphys.2023.127783 ↗
63. Impact of interstitial elements on the stacking fault energy of an equiatomic CoCrNi medium entropy alloy: theory and experiments10.1080/14686996.2022.2080512 ↗
64. Magnetism and thermodynamics of defect-free Fe-Cr alloys10.1103/PhysRevB.74.094435 ↗
65. Spin-driven ordering of Cr in the equiatomic high entropy alloy NiFeCrCo
66. Sublattice formation in CoCrFeNi high-entropy alloy10.1016/j.intermet.2019.106542 ↗
67. Chemical domain structure and its formation kinetics in CrCoNi medium-entropy alloy10.1016/j.actamat.2022.118314 ↗
68. Bulk and element-specific magnetism of medium-entropy and high-entropy Cantor-Wu alloys10.1103/PhysRevB.102.174405 ↗
69. Short-range order and phase stability of CrCoNi explored with machine learning potentials
70. Extra electron reflections in concentrated alloys do not necessitate short-range order10.1038/s41563-023-01570-9 ↗
71. Shape memory effect and superelasticity in a strain glass alloy10.1103/PhysRevLett.97.225703 ↗
72. Superelasticity of slim hysteresis over a wide temperature range by nanodomains of martensite10.1016/j.actamat.2013.11.022 ↗
73. Nanocrystalline strain glass TiNiPt and its superelastic behavior10.1103/PhysRevB.104.024102 ↗
74. Novel B19′ strain glass with large recoverable strain10.1103/PhysRevMaterials.1.033608 ↗
75. Strain glass transition in a multifunctional β-type Ti alloy10.1038/srep03995 ↗
76. Ta-Nb-Mo-W refractory high-entropy alloys: anomalous ordering behavior and its intriguing electronic origin
77. Atomistic simulations of dislocation mobility in refractory high-entropy alloys and the effect of chemical short-range order10.1038/s41467-021-25134-0 ↗
78. Overcoming the strength-ductility trade-off in refractory medium-entropy alloys via controlled B2 ordering10.1080/21663831.2022.2109442 ↗
79. Chemical short-range ordering and its strengthening effect in refractory high-entropy alloys
80. Retainable short-range order effects on the strength and toughness of NbMoTaW refractory high-entropy alloys10.1016/j.intermet.2022.107707 ↗
81. On the origin of diffuse intensities in fcc electron diffraction patterns10.1038/s41586-023-06530-6 ↗