Preparation, structure, and properties of high-entropy alloy multilayer coatings for nuclear fuel cladding: A case study of AlCrMoNbZr/(AlCrMoNbZr)N

Zhang, W.; Tang, Rui; Yang, Zhongbo; Liu, C.H.; Hong, Chen; Yang, Jijun; Liao, Jiali; Yang, Yuanyou; Liu, Naiming

doi:10.1016/j.jnucmat.2018.10.001

Cited by 77 publications

(20 citation statements)

References 39 publications

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“…A useful lookup tool for the neutron scattering and capture cross sections for elements as a function of neutron energy is the TENDL nuclear data library [ 27 ]. A number of studies have used low neutron cross section elements to design HEAs for ATF cladding, either as bulk alloys [ 28 , 29 , 30 , 31 ] or as coatings for Zr alloys [ 32 , 33 , 34 , 35 , 36 ]. Preliminary results of the HEA coatings has suggested better wear and corrosion performance than uncoated Zr, and authors have claimed they are good candidates for ATF cladding [ 33 , 34 ].…”

Section: Desired Properties and Element Restrictionsmentioning

confidence: 99%

High-Entropy Alloys for Advanced Nuclear Applications

Pickering

Carruthers

Barron

et al. 2021

Entropy

195

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The expanded compositional freedom afforded by high-entropy alloys (HEAs) represents a unique opportunity for the design of alloys for advanced nuclear applications, in particular for applications where current engineering alloys fall short. This review assesses the work done to date in the field of HEAs for nuclear applications, provides critical insight into the conclusions drawn, and highlights possibilities and challenges for future study. It is found that our understanding of the irradiation responses of HEAs remains in its infancy, and much work is needed in order for our knowledge of any single HEA system to match our understanding of conventional alloys such as austenitic steels. A number of studies have suggested that HEAs possess ‘special’ irradiation damage resistance, although some of the proposed mechanisms, such as those based on sluggish diffusion and lattice distortion, remain somewhat unconvincing (certainly in terms of being universally applicable to all HEAs). Nevertheless, there may be some mechanisms and effects that are uniquely different in HEAs when compared to more conventional alloys, such as the effect that their poor thermal conductivities have on the displacement cascade. Furthermore, the opportunity to tune the compositions of HEAs over a large range to optimise particular irradiation responses could be very powerful, even if the design process remains challenging.

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Section: Desired Properties and Element Restrictionsmentioning

confidence: 99%

High-Entropy Alloys for Advanced Nuclear Applications

Pickering

Carruthers

Barron

et al. 2021

Entropy

195

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“…Another important technique for the HEA coatings is magnetron sputtering where the HEA is atomically sputtered layer-by-layer over a substrate. Most of the HEA coatings deposited by sputtering are HEA nitride, carbide, and boride coatings with excellent wear, oxidation, and irradiation resistance properties [81][82][83][84][85]. Most of these sputtered coatings have BCC or FCC solid solution phases with amorphous structures compared to other thermally sprayed coatings.…”

Section: Methods Of Fabrication Of Hea Coatingsmentioning

confidence: 99%

“…In the vacuum deposition process, target material vaporizes on the base metal by the plasma generated from the arc produced. Although, there is a limit on the coating thickness, yet the coatings are very harder and good for wear and antioxidation resistance properties, due to columnar and amorphous structures [67][68][69]81,85].…”

Section: Methods Of Fabrication Of Hea Coatingsmentioning

confidence: 99%

High Entropy Alloy Coatings and Technology

Sharma

2021

Coatings

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Recently, the materials research community has seen a great increase in the development of multicomponent alloys, known as high entropy alloys (HEAs) with extraordinary properties and applications. In surface protection and engineering, diverse applications of HEAs are also being counted to benefit from their attractive performances in various environments. Thermally sprayed HEA coatings have outperformed conventional coating materials and have accelerated further advancement in this field. Therefore, this review article overviews the initial developments and outcomes in the field of HEA coatings. The authors have also categorized these HEA coatings in metallic, ceramic, and composite HEA coatings and discussed various developments in each of the categories in detail. Various fabrication strategies, properties, and important applications of these HEAs are highlighted. Further, various issues and future possibilities in this area for coatings development are recommended.

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“…Up to now, to the authors' knowledge, the work on the design of HEAs for application in the nuclear industry is scarce. Zhang et al [30,31] designed and prepared an AlCrMoNbZr HEA coating on N36 zirconium alloy (Zr-1Sn-1Nb-0.3Fe wt%) as cladding materials. The selected alloying elements (Al, Cr, Mo, Nb, and Zr) should have relatively low thermal neutron absorption cross sections (Zr, 0.18b; Al, 0.22b; Nb, 1.1b; Mo, 2.4b; and Cr, 3.05b) for nuclear power plant applications.…”

Section: Introductionmentioning

confidence: 99%

Microstructure, Mechanical Properties, and Corrosion Behavior of MoNbFeCrV, MoNbFeCrTi, and MoNbFeVTi High-Entropy Alloys

Xiang

Zhang

et al. 2019

Acta Metall. Sin. (Engl. Lett.)

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The development of high-entropy alloys (HEAs) has stimulated an ever-increasing interest from both academia and industries. In this work, three novel MoNbFeCrV, MoNbFeCrTi, and MoNbFeVTi HEAs containing low thermal neutron absorption cross section elements were prepared by vacuum arc melting. The microstructure, mechanical properties, and corrosion behaviors were investigated. A dominant body-centered cubic (BCC) phase was present in all these three HEAs. In addition, an ordered Laves phase was found to be another major phase in both MoNbFeCrV and MoNbFeCrTi alloys, whereas an ordered BCC (B2) phase was observed in the MoNbFeVTi alloy. The phase formation in these three alloys was discussed. It is found that the formation of the secondary phase in these alloys is mainly ascribed to the large atomic size difference and electronegativity difference. All the three HEAs show high hardness, high yield strength but limited plasticity. Moreover, the MoNbFeCrV, MoNbFeCrTi and MoNbFeVTi alloys exhibit excellent corrosion resistance in both deaerated 1 mol/L NaCl and 0.5 mol/L H 2 SO 4 solutions at room temperature. However, further composition adjustment and/or thermomechanical processing is required to enhance the mechanical properties of the three alloys.

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Preparation, structure, and properties of high-entropy alloy multilayer coatings for nuclear fuel cladding: A case study of AlCrMoNbZr/(AlCrMoNbZr)N

Cited by 77 publications

References 39 publications

High-Entropy Alloys for Advanced Nuclear Applications

High-Entropy Alloys for Advanced Nuclear Applications

High Entropy Alloy Coatings and Technology

Microstructure, Mechanical Properties, and Corrosion Behavior of MoNbFeCrV, MoNbFeCrTi, and MoNbFeVTi High-Entropy Alloys

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