Excellent radiation resistance via enforced local non-directional He diffusion in a WTaCrV multicomponent alloy containing coherent ordered nanoprecipitates
Source abstract
Abstract
We design and investigate a W 15 Ta 15 Cr 35 V 35 (at.%) multicomponent alloy (MCA) with exceptional radiation resistance. The sintered WTaCrV alloy exhibits a body-centered cubic (BCC) matrix with dispersed coherent ordered nanoprecipitates. After ∼3-hour irradiation under 400 keV He + at room temperature (RT) and 450 °C with a fluence of 2 × 10 17 ions/cm 2 , the irradiation hardening values of the MCA are about a quarter of those of pure tungsten counterparts irradiated at identical conditions. Besides, helium bubbles generated in the irradiated matrix of the MCA are much smaller, compared with those in the pure tungsten and other tungsten-rich alloys previously reported. The exceptional radiation resistance of the present WTaCrV alloy can be mainly attributed to two synergistic mechanisms. First, the high lattice distortion of the solid solution matrix promotes the local non-directional diffusion of irradiation defects, effectively suppressing the aggregation of irradiation defects and helium atoms along specific orientations. This facilitates more uniform nucleation of helium bubbles in the alloy matrix. Second, carbon was introduced during fast hot pressing sintering as interstitial solute to form carbon-rich coherent ordered nanoprecipitates. The carbon-vacancy complexes generated in the nanoprecipitates inhibit the nucleation and aggregation of helium atoms at the vacancies during He + irradiation. The above two mechanisms synergistically enhance the resistance against He + irradiation. This work thus demonstrates a design strategy for high radiation resistance alloys by introducing well-tuned ordered coherent nanoprecipitates in multicomponent alloy systems .
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: High Entropy Alloys Studies · Fusion materials and technologies · High-Temperature Coating Behaviors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (76)
Show source-provided references
1. Does the pathway for development of next generation nuclear materials straightly go through high-entropy materials?10.1016/j.ijrmhm.2021.105504 ↗
2. Overview of materials research for fusion reactors10.1016/S0920-3796(02)00219-3 ↗
3. Designing radiation resistance in materials for fusion energy10.1146/annurev-matsci-070813-113627 ↗
4. Interaction of irradiation defects with precipitates in CuCrZr and Cu-1Fe alloys10.1016/j.actamat.2023.118964 ↗
5. Simultaneous enhancement in hardness and He-irradiation tolerance of TiVCr/W medium entropy nanolaminates10.1016/j.jallcom.2022.168114 ↗
6. Irradiation behaviors of two novel single-phase bcc-structure high-entropy alloys for accident-tolerant fuel cladding10.1016/j.jmst.2020.12.058 ↗
7. Effect of He on the hardness and incipient plasticity of W films during nanoindentation10.1016/j.jnucmat.2021.153478 ↗
8. An ultrafine-grained low-activation multicomponent alloy with exceptional thermal stability and ultrahigh-temperature mechanical properties10.1016/j.jmst.2024.03.002 ↗
9. Weakening the self-trapping of helium by electron density regulation in WTaVCr high-entropy alloys10.1016/j.scriptamat.2023.115930 ↗
10. Towards V-based high-entropy alloys for nuclear fusion applications10.1016/j.scriptamat.2019.09.028 ↗
11. A mechanically strong and ductile soft magnet with extremely low coercivity10.1038/s41586-022-04935-3 ↗
12. Metastable high-entropy dual-phase alloys overcome the strength-ductility trade-off10.1038/nature17981 ↗
13. Nanostructured high-entropy alloys with multiple principal elements: novel alloy design concepts and outcomes10.1002/adem.200300567 ↗
14. A non-equiatomic FeNiCoCr high-entropy alloy with excellent anti-corrosion performance and strength-ductility synergy10.1016/j.corsci.2021.109341 ↗
15. A strong ferritic high-resistivity multicomponent alloy with tunable ordered coherent multicomponent nanoprecipitates10.1016/j.actamat.2022.118209 ↗
16. Exceptional creep resistance enabled by thermally stable cellular dislocation structures in an additively manufactured multicomponent alloy10.1016/j.msea.2023.145902 ↗
17. Manipulating stacking fault energy to achieve crack inhibition and superior strength–ductility synergy in an additively manufactured high-entropy alloy10.1002/adma.202310160 ↗
18. A promising strategy of multicomponent alloy intermedium for enhancing the mechanical performance of inertia friction welding joints of Inconel 718 alloys10.1016/j.msea.2024.146480 ↗
19. Radiation-induced segregation on defect clusters in single-phase concentrated solid-solution alloys10.1016/j.actamat.2017.01.019 ↗
20. Ion irradiation response and mechanical behavior of reduced activity high entropy alloy10.1016/j.jnucmat.2019.151955 ↗
21. Influence of chemical disorder on energy dissipation and defect evolution in concentrated solid solution alloys10.1038/ncomms9736 ↗
22. Mechanism of radiation damage reduction in equiatomic multicomponent single phase alloys10.1103/PhysRevLett.116.135504 ↗
23. Effects of compositional complexity on the ion-irradiation induced swelling and hardening in Ni-containing equiatomic alloys10.1016/j.scriptamat.2016.03.030 ↗
24. Outstanding radiation resistance of tungsten-based high-entropy alloys10.1126/sciadv.aav2002 ↗
25. Unconventional energetics of small vacancy clusters in BCC high-entropy alloy Nb0.75ZrTiV0.510.1016/j.jmst.2022.11.008 ↗
26. Defect properties in a VTaCrW equiatomic high entropy alloy (HEA) with the body centered cubic (bcc) structure10.1016/j.jmst.2019.10.025 ↗
27. Primary radiation damage in tungsten-based high-entropy alloy: interatomic potential and collision cascade simulations10.1016/j.jnucmat.2023.154646 ↗
28. Enhanced resistance to helium irradiations through unusual interaction between high-entropy-alloy and helium10.1016/j.actamat.2023.118765 ↗
29. A promising new class of irradiation tolerant materials: ti2ZrHfV0.5Mo0.2 high-entropy alloy10.1016/j.jmst.2018.09.034 ↗
30. Mechanical properties and microstructural change of W–Y2O3 alloy under helium irradiation10.1038/srep12755 ↗
31. Microstructure and performance of rare earth element-strengthened plasma-facing tungsten material10.1038/srep32701 ↗
32. Development of re-crystallized W–1.1%TiC with enhanced room-temperature ductility and radiation performance10.1016/j.jnucmat.2009.10.015 ↗
33. Impact of neutron irradiation on the strength and ductility of pure and ZrC reinforced tungsten grades10.1016/j.jnucmat.2020.152226 ↗
34. Local chemical ordering and its impact on radiation damage behavior of multi-principal element alloys10.1016/j.jmst.2022.05.062 ↗
35. Effect of local chemical order on the irradiation-induced defect evolution in CrCoNi medium-entropy alloy
36. Unprecedented irradiation resistance of nanocrystalline tungsten with equiaxed nanocrystalline grains to dislocation loop accumulation10.1016/j.actamat.2018.11.024 ↗
37. A comparative study on the in situ helium irradiation behavior of tungsten: coarse grain vs. nanocrystalline grain10.1016/j.actamat.2018.01.015 ↗
38. In-situ irradiation tolerance investigation of high strength ultrafine tungsten-titanium carbide alloy10.1016/j.actamat.2018.10.038 ↗
39. Superior radiation tolerance via reversible disordering–ordering transition of coherent superlattices10.1038/s41563-022-01260-y ↗
40. Defect production efficiency in metals under neutron irradiation10.1016/j.jnucmat.2004.05.002 ↗
41. Enhancing radiation tolerance by controlling defect mobility and migration pathways in multicomponent single-phase alloys10.1038/ncomms13564 ↗
42. Enhanced radiation tolerance of the Ni-Co-Cr-Fe high-entropy alloy as revealed from primary damage10.1016/j.actamat.2020.06.027 ↗
43. Comparative study of radiation defects in ion irradiated bulk and thin-foil tungsten10.1016/j.actamat.2019.12.053 ↗
44. Microstructural response of He+ irradiated FeCoNiCrTi0.2 high-entropy alloy10.1016/j.jnucmat.2018.08.006 ↗
45. The effect of interstitial carbon atoms on defect evolution in high entropy alloys under helium irradiation10.1016/j.actamat.2022.117955 ↗
46. Helium irradiated cavity formation and defect energetics in Ni-based binary single-phase concentrated solid solution alloys10.1016/j.actamat.2018.10.040 ↗
47. He2+ irradiation induced microstructure evolution in sub-surface layer of the coarse-grained tungsten accessed by synchrotron GIXRD and GISAXS10.1016/j.apsusc.2022.153461 ↗
48. Compositional effects of additively manufactured refractory high-entropy alloys under high-energy helium irradiation10.3390/nano12122014 ↗
49. Helium partitioning to the core-shelled Ta nanoclusters in nanocrystalline Cu-Ta alloy10.1016/j.scriptamat.2021.114344 ↗
50. Evaluation of radiation hardening in ion-irradiated Fe based alloys by nanoindentation10.1016/j.jnucmat.2013.09.026 ↗
51. Indentation size effects in crystalline materials: a law for strain gradient plasticity10.1016/S0022-5096(97)00086-0 ↗
52. High He-ion irradiation resistance of CrMnFeCoNi high-entropy alloy revealed by comparison study with Ni and 304SS10.1016/j.jmst.2018.09.050 ↗
53. Elastic interaction between prismatic dislocation loops and straight dislocations10.1039/df9643800049 ↗
54. CXXX. On the linear work hardening mate of face-centred cubic single crystals, London10.1080/14786441108520630 ↗
55. Nanohardness measurements of heavy ion irradiated coarse- and nanocrystalline-grained tungsten at room and high temperature10.1016/j.jnucmat.2018.06.023 ↗
56. Trends in vacancy distribution and hardness of high temperature neutron irradiated single crystal tungsten10.1016/j.actamat.2020.07.047 ↗
57. Materials research for fusion10.1038/nphys3735 ↗
58. Migration energy of He in W revisited by ab initio calculations10.1103/PhysRevLett.97.196402 ↗
59. First-principles study of vacancy, interstitial, noble gas atom interstitial and vacancy clusters in bcc-W10.1016/j.commatsci.2016.06.022 ↗
60. Atomistic simulations of enhanced irradiation resistance and defect properties in body-centered cubic W-V-Cr and W-Ta-V alloys10.1016/j.jallcom.2023.169744 ↗
61. Enhanced radiation resistance of W-based HEA under helium-ion irradiation conditions10.1016/j.jnucmat.2023.154761 ↗
62. Kinetic Monte Carlo simulations of helium cluster nucleation in tungsten with preexisting vacancies10.13182/FST16-111 ↗
63. Equilibrium vacancies and thermophysical properties of metals10.1016/S0370-1573(97)00082-3 ↗
64. The effect of radiation upon diffusion in metals10.1016/0022-3115(78)90256-8 ↗
65. Was · 2017 · 207
66. Disentangling diffusion heterogeneity in high-entropy alloys10.1016/j.actamat.2021.117527 ↗
67. Quenching and recovery investigations of vacancies in tungsten10.1080/01418618008241833 ↗
68. Self-interstitial atom defects in bcc transition metals: group-specific trends10.1103/PhysRevB.73.020101 ↗
69. The interstitial emission mechanism in a vanadium-based alloy10.1016/j.jnucmat.2020.152121 ↗
70. Self-interstitials in V and Mo10.1103/PhysRevB.66.220101 ↗
71. Ultrastrong nanocrystalline steel with exceptional thermal stability and radiation tolerance10.1038/s41467-018-07712-x ↗
72. Investigation of plasma exposed W-1% La2O3 tungsten in a high ion flux, low ion energy, low carbon impurity plasma environment for the International Thermonuclear Experimental Reactor10.1016/S0022-3115(98)00483-8 ↗
73. The effect of mechanical alloying time on the microstructural and mechanical properties of spark plasma sintered Ta–10W10.1016/j.msea.2020.140024 ↗
74. Enhancing the radiation tolerance of high-entropy alloys via solute-promoted chemical heterogeneities10.1016/j.actamat.2022.118662 ↗
75. Effect of interstitial carbon on the evolution of early-stage irradiation damage in equi-atomic FeMnNiCoCr high-entropy alloys10.1063/1.5130748 ↗
76. Primary radiation damage: a review of current understanding and models10.1016/j.jnucmat.2018.10.027 ↗