Tracer diffusion in the σ phase of the CoCrFeMnNi system
Source abstract
Abstract
Abstract: A single Cr-rich σ-phase alloy with a composition of Co17Cr46Fe16.3Mn15.2Ni5.5 (at.%) and a tetragonal lattice structure was produced. The tracer diffusion coefficients of Ni and Fe were measured by secondary ion mass spectroscopy using the highly enriched 64Ni and 58Fe natural isotopes. On the homologous temperature scale, Ni and Fe diffuse in the σ phase faster as compared to the corresponding diffusion rates in the equiatomic and face-centered cubic CoCrFeMnNi alloy. In contrast, on the absolute temperature scale, these elements diffuse roughly at the same rates in both materials. Factors influencing element diffusion and phase stability of the σ phase compared to the equiatomic alloy are discussed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: High Entropy Alloys Studies · High Temperature Alloys and Creep · High-Temperature Coating Behaviors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (64)
Show source-provided references
1. Nanostructured high‐entropy alloys with multiple principal elements: novel alloy design concepts and outcomes10.1002/adem.200300567 ↗
2. Sluggish diffusion in Co–Cr–Fe–Mn–Ni high-entropy alloys10.1016/j.actamat.2013.04.058 ↗
3. Microstructural development in equiatomic multicomponent alloys10.1016/j.msea.2003.10.257 ↗
4. A fracture-resistant high-entropy alloy for cryogenic applications10.1126/science.1254581 ↗
5. An understanding of high entropy alloys from phase diagram calculations10.1016/j.calphad.2013.10.006 ↗
6. Microstructures and properties of high-entropy alloys10.1016/j.pmatsci.2013.10.001 ↗
7. Nanoscale origins of the damage tolerance of the high-entropy alloy CrMnFeCoNi10.1038/ncomms10143 ↗
8. High temperature oxidation behavior of Cr-Mn-Fe-Co-Ni high entropy alloy10.1016/j.intermet.2018.04.006 ↗
9. Decomposition of the single-phase high-entropy alloy CrMnFeCoNi after prolonged anneals at intermediate temperatures10.1016/j.actamat.2016.04.005 ↗
10. Precipitation in the equiatomic high-entropy alloy CrMnFeCoNi10.1016/j.scriptamat.2015.10.025 ↗
11. Phase stability and kinetics of σ-phase precipitation in CrMnFeCoNi high-entropy alloys10.1016/j.actamat.2018.09.040 ↗
12. On the influence of Mn on the phase stability of the CrMnxFeCoNi high entropy alloys10.1016/j.intermet.2017.09.011 ↗
13. Effect of Co on the phase stability of CrMnFeCoxNi high entropy alloys following long-duration exposures at intermediate temperatures10.1016/j.intermet.2019.106582 ↗
14. On the prediction and the formation of the sigma phase in CrMnCoFeNix high entropy alloys10.1016/j.jallcom.2018.08.032 ↗
15. Mechanical properties, microstructure and thermal stability of a nanocrystalline CoCrFeMnNi high-entropy alloy after severe plastic deformation10.1016/j.actamat.2015.06.025 ↗
16. Grain boundary diffusion in CoCrFeMnNi high entropy alloy: kinetic hints towards a phase decomposition10.1016/j.actamat.2020.05.009 ↗
17. The Crystal Structure of the Sigma‐Phase in the Co‐Cr System10.1063/1.1699960 ↗
18. The determination of the crystal structure of the σ phase in the iron–chromium and iron–molybdenum systems10.1107/S0365110X54002605 ↗
19. The crystal structure of the Co–Cr σ phase10.1107/S0365110X56000826 ↗
20. Understanding sigma-phase precipitation in a stabilized austenitic stainless steel (316Nb) through complementary CALPHAD-based and experimental investigations10.1016/j.actamat.2014.06.066 ↗
21. High resolution transmission electron microscopy studies of σ phase in Ni-based single crystal superalloys10.1016/j.jallcom.2012.05.004 ↗
22. Overview of Intermetallic Sigma Phase Precipitation in Stainless Steels10.5402/2012/732471 ↗
23. σ-Phase precipitation in stabilized austenitic stainless steels10.1016/S1359-6454(00)00069-0 ↗
24. Effects of solution treatment and continuous cooling on σ-phase precipitation in a 2205 duplex stainless steel10.1016/S0921-5093(01)00911-X ↗
25. Phase-Field Modeling of Sigma-Phase Precipitation in 25Cr7Ni4Mo Duplex Stainless Steel10.1007/s11661-017-4214-7 ↗
26. Self-diffusion of V-48 in the FeV σ-phase and in an Fe-47 wt.% V solid solution10.1007/BF01597398 ↗
27. Tracer diffusion in single crystalline CoCrFeNi and CoCrFeMnNi high-entropy alloys: Kinetic hints towards a low-temperature phase instability of the solid-solution?10.1016/j.scriptamat.2020.05.060 ↗
28. Concentration-dependent atomic mobilities in FCC CoCrFeMnNi high-entropy alloys10.1016/j.actamat.2018.12.033 ↗
29. Bulk tracer diffusion in CoCrFeNi and CoCrFeMnNi high entropy alloys10.1016/j.actamat.2017.12.052 ↗
30. Ni tracer diffusion in CoCrFeNi and CoCrFeMnNi high entropy alloys10.1016/j.jallcom.2016.07.239 ↗
31. Tracer diffusion in the Ni–CoCrFeMn system: Transition from a dilute solid solution to a high entropy alloy10.1016/j.scriptamat.2018.09.011 ↗
32. Experimental and theoretical study of tracer diffusion in a series of (CoCrFeMn)100−xNix alloys10.1016/j.actamat.2020.05.037 ↗
33. A Mystery of "Sluggish Diffusion" in High-Entropy Alloys: The Truth or a Myth?10.4028/www.scientific.net/DF.17.69 ↗
34. Studies of “sluggish diffusion” effect in Co-Cr-Fe-Mn-Ni, Co-Cr-Fe-Ni and Co-Fe-Mn-Ni high entropy alloys; determination of tracer diffusivities by combinatorial approach10.1016/j.jallcom.2017.10.108 ↗
35. Analysis of diffusion in high entropy alloys10.1016/j.matchemphys.2017.06.039 ↗
36. Experimental and numerical studies on the sluggish diffusion in face centered cubic Co-Cr-Cu-Fe-Ni high-entropy alloys10.1016/j.jmst.2018.02.003 ↗
37. Effect of Temperature and Texture on Hall–Petch Strengthening by Grain and Annealing Twin Boundaries in the MnFeNi Medium-Entropy Alloy10.3390/met9010084 ↗
38. Ab initio analysis of energetics of σ-phase formation in Cr-based systems10.1103/PhysRevB.63.174104 ↗
39. Application of ab initio electronic structure calculations for prediction of phase equilibria in superaustenitic steels10.1016/j.commatsci.2006.03.002 ↗
40. Site Occupation Reversal in the Fe−Cr σ Phase10.1103/PhysRevLett.75.3142 ↗
41. https://www.jems-swiss.ch/Home/jemsWebSite/jems.html
42. Paul · 2014
43. A curvature in the Arrhenius plot for the diffusion of iron in single crystals of nickel in the temperature range from 1200 to 1400 C10.1002/pssb.2220450227 ↗
44. Interdiffusion and the Kirkendall Effect in Binary Alloys
45. Diffusion of Ni63 in iron, cobalt, nickel, and two iron–nickel alloys10.1139/v59-237 ↗
46. Volume diffusion of cobalt and tungsten in nickel
47. H. Mehrer, Diffusion in solids: fundamentals, methods, materials, diffusion-controlled processes, Springer Science & Business Media2007.10.1007/978-3-540-71488-0 ↗
48. The Atomic Site Occupancies in the Fe-Cr σ-Phase10.4028/www.scientific.net/SSP.170.13 ↗
49. Configurational thermodynamics of the Fe-Crσphase10.1103/PhysRevB.84.184206 ↗
50. 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 ↗
51. Grain boundary structure in high-entropy alloys
52. Vacancy concentration and diffusion in order-disorder alloys10.1016/0022-3697(64)90111-8 ↗
53. Vacancy formation enthalpy in CoCrFeMnNi high-entropy alloy10.1016/j.scriptamat.2019.09.033 ↗
54. Defect energetics for diffusion in CrMnFeCoNi high-entropy alloy from first-principles calculations10.1016/j.commatsci.2019.109163 ↗
55. Effect of d electrons on defect properties in equiatomic NiCoCr and NiCoFeCr concentrated solid solution alloys10.1103/PhysRevMaterials.2.013602 ↗
56. Tracer diffusion in single crystalline CoCrFeNi and CoCrFeMnNi high entropy alloys10.1557/jmr.2018.162 ↗
57. Radioactive isotopes reveal a non sluggish kinetics of grain boundary diffusion in high entropy alloys10.1038/s41598-017-12551-9 ↗
58. Phase separation of metastable CoCrFeNi high entropy alloy at intermediate temperatures10.1016/j.scriptamat.2016.08.008 ↗
59. Ductile CoCrFeNiMox high entropy alloys strengthened by hard intermetallic phases10.1016/j.actamat.2016.06.063 ↗
60. Grain refinement of non-equiatomic Cr-rich CoCrFeMnNi high-entropy alloys through combination of cold rolling and precipitation of σ phase10.1016/j.msea.2018.08.038 ↗
61. Role of brittle sigma phase in cryogenic-temperature-strength improvement of non-equi-atomic Fe-rich VCrMnFeCoNi high entropy alloys10.1016/j.msea.2018.03.115 ↗
62. The tribological properties of Al0. 6CoCrFeNi high-entropy alloy with the σ phase precipitation at elevated temperature10.1016/j.jallcom.2018.10.393 ↗
63. Utilization of brittle σ phase for strengthening and strain hardening in ductile VCrFeNi high-entropy alloy10.1016/j.msea.2018.11.136 ↗
64. Growth kinetics of σ-phase precipitates and underlying diffusion processes in CrMnFeCoNi high-entropy alloys10.1016/j.actamat.2020.08.023 ↗