A comparative study of irradiation response in amorphous TaTiWVCr refractory high entropy alloy with the counterpart of tungsten films

Guo, Pu; Sun, Song; Wang, Sishu; Gan, Lin; Chen, Sheng; Ye, Zongbiao; Huang, Zhangyi; Zheng, Jiaochun; Wang, Zhijun; Yang, Cheng‐Ta; Lin, Liwei; Liu, Bo; Zhang, Kun; Wang, Yihan

doi:10.1016/j.intermet.2023.107850

Cited by 11 publications

(6 citation statements)

References 64 publications

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“…The fabrication of RHEAs can be accomplished through various advanced techniques, such as magnetron sputtering [8,43] and laser metal deposition (LMD) [44,45]. However, to produce bulk materials, vacuum arc melting [46] is the most prevalent method.…”

Section: Composition Design and Preparation Of Rheasmentioning

confidence: 99%

“…Pu et al [8] discuss the mechanisms of irradiation-induced crystallization in amorphous TaTiWVCr RHEAs and W films when exposed to 60 keV He + ion irradiation. Both materials were irradiated using a 60 keV He ion beam platform, with fluences ranging from 1 × 10 16 cm −2 to 2 × 10 17 cm −2 .…”

Section: Irradiation-induced Phase Transformations Of Rheasmentioning

confidence: 99%

“…Nuclear energy has many advantages, such as a high energy density, great power generation efficiency, low comprehensive cost, continuous power supply, and small regional climate impact, but the inherent safety of nuclear reactors is a key issue limiting its development [1]. The properties of structural/cladding materials are fundamental in the inherent safety; however, they are affected by long-term irradiation of high-temperature and highenergy neutrons and fission products, which usually causes thermal stress expansion and cracks, in addition to radiation hardening and embrittlement [2][3][4][5], radiation swelling [6], phase transformations [7,8], helium effect behavior [9], etc.…”

Section: Introductionmentioning

confidence: 99%

“…As one type of HEA, refractory high-entropy alloys (RHEAs) are mainly composed of multiple principal refractory elements [7,8,30]. They possess a BCC structure, good phase stability, and high melting points and operating temperatures, and have good prospects in nuclear applications.…”

Section: Introductionmentioning

confidence: 99%

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A Review of Irradiation-Tolerant Refractory High-Entropy Alloys

Wang,

Yang,

Shu

et al. 2023

Metals

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Along with the globalization of environmental problems and the rapid development of the field of nuclear technologies, the severe irradiation damage of materials has become a big issue, restricting the development of advanced nuclear reactor systems. Refractory high-entropy alloys (RHEAs) have the characteristics of a complex composition, a short-range order, and lattice distortion and possess a high phase stability, outstanding mechanical properties, and excellent irradiation resistance at elevated temperatures; thus, they are expected to be promising candidates for advanced nuclear reactors. This review summarizes the design, preparation, and irradiation resistance of irradiation-tolerant RHEAs. It encompasses a comprehensive analysis of various aspects, including the evolution of defects, changes in microstructure, and the degradation in properties. Furthermore, the challenges and insufficiently researched areas regarding these alloys are identified and discussed. Building on this foundation, the review also provides a forward-looking perspective, outlining potential avenues for future research.

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Section: Composition Design and Preparation Of Rheasmentioning

confidence: 99%

Section: Irradiation-induced Phase Transformations Of Rheasmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Review of Irradiation-Tolerant Refractory High-Entropy Alloys

Wang,

Yang,

Shu

et al. 2023

Metals

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“…In general, the materials manifest sharply declining performances in hardening and swelling under irradiation [12,[21][22][23][24][25][26][27][28][29]. Introducing several defects sinks can effectively enhance the radiation resistance of materials, such as oxide-dispersion-strengthened steels [30,31] and nanograined polycrystalline alloys [32].…”

Section: Introductionmentioning

confidence: 99%

Defects Act in an “Introverted” Manner in FeNiCrCoCu High-Entropy Alloy under Primary Damage

Zhang,

Kan,

Liang

et al. 2024

Metals

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High-entropy alloys (HEAs) attract much attention as possible radiation-resistant materials due to their several unique properties. In this work, the generation and evolution of the radiation damage response of an FeNiCrCoCu HEA and bulk Ni in the early stages were explored using molecular dynamics (MD). The design, concerned with investigating the irradiation tolerance of the FeNiCrCoCu HEA, encompassed the following: (1) The FeNiCrCoCu HEA structure was obtained through a hybrid method that combined Monte Carlo (MC) and MD vs. the random distribution of atoms. (2) Displacement cascades caused by different primary knock-on atom (PKA) energy levels (500 to 5000 eV) of the FeNiCrCoCu HEA vs. bulk Ni were simulated. There was almost no element segregation in bulk FeNiCrCoCu obtained with the MD/MC method by analyzing the Warren–Cowley short-range order (SRO) parameters. In this case, the atom distribution was similar to the random structure that was selected as a substrate to conduct the damage cascade process. A mass of defects (interstitials and vacancies) was generated primarily by PKA departure. The number of adatoms grew, which slightly roughened the surface, and the defects were distributed deeper as the PKA energy increased for both pure Ni and the FeNiCrCoCu HEA. At the time of thermal spike, one fascinating phenomenon occurred where the number of Frenkel pairs for HEA was more than that for pure Ni. However, we obtained the opposite result, that fewer Frenkel pairs survived in the HEA than in pure Ni in the final state of the damage cascade. The number and size of defect clusters grew with increasing PKA energy levels for both materials. Defects were suppressed in the HEA; that is to say, defects were “cowards”, behaving in an introverted manner according to the anthropomorphic rhetorical method.

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Review on mechanical and functional properties of refractory high-entropy alloy films by magnetron sputtering

El Garah,

Soubane,

Sanchette

2023

emergent mater.

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Refractory high-entropy films (RHEFs), as multi-component materials, have garnered significant attention due to their potential use in high-temperature applications. RHEFs are endowed with unique microstructural and functional properties due to the use of refractory elements. In this review, we examine the recent state of research on RHEFs deposited by the magnetron sputtering technique. The microstructure of RHEFs has been analyzed/explored and the mechanical properties as well as the main hardening mechanisms of these films are discussed. Furthermore, functional properties such as resistance to corrosion and wear, electrical and irradiation performances, and high-temperature oxidation were evaluated. RHEFs can meet market demand in the field of engineering materials. However, many challenges, such as low ductility at room temperature, remain to be overcome. This review provides an overview of the strengths and weaknesses of RHEFs produced using magnetron sputtering.

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A comparative study of irradiation response in amorphous TaTiWVCr refractory high entropy alloy with the counterpart of tungsten films

Cited by 11 publications

References 64 publications

A Review of Irradiation-Tolerant Refractory High-Entropy Alloys

A Review of Irradiation-Tolerant Refractory High-Entropy Alloys

Defects Act in an “Introverted” Manner in FeNiCrCoCu High-Entropy Alloy under Primary Damage

Review on mechanical and functional properties of refractory high-entropy alloy films by magnetron sputtering

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