Effects of temperature on the irradiation responses of Al0.1CoCrFeNi high entropy alloy

Yang, Tonghai; Xia, Songqin; Guo, Wei; Hu, Rong; Poplawsky, Jonathan D.; Sha, Gang; Fang, Yuan; Yan, Zhanfeng; Wang, Chenxu; Li, Congyi; Zhang, Yong; Zinkle, S.J.; Wang, Yugang

doi:10.1016/j.scriptamat.2017.09.025

Cited by 121 publications

(35 citation statements)

References 21 publications

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“…Furthermore, a trend of reducing RIS level has been observed with increasing compositional complexity, from NiFe, NiCoFe, NiCoFeCr, to NiCoFeCrMn . For all the observed RIS cases, as representatively shown in Figures 7c,d, Ni and Co tend to enrich, but Cr, Fe, and Mn prefer to deplete near the defects (grain boundaries, loops, and voids) (He et al, 2017;Lu et al, 2017;Yang et al, 2018).…”

Section: Response To the Irradiations At Elevated Temperaturesmentioning

confidence: 66%

“…(Yang et al, 2018). Unlike in Lu et al (2016b), no voids have been observed in both cases at all the test temperatures.…”

Section: Response To the Irradiations At Elevated Temperaturesmentioning

confidence: 74%

“…Unlike in Lu et al (2016b), no voids have been observed in both cases at all the test temperatures. For the observable defect clusters, the density decreases but the size increases with increasing irradiation temperature (Kumar et al, 2016;Yang et al, 2018). However, the temperature dependence in the FeNiMnCr 0.66 is less significant compared with the conventional Fe-Cr-Ni alloys.…”

Section: Response To the Irradiations At Elevated Temperaturesmentioning

confidence: 97%

“…Note that irradiation temperature is a critical parameter for high temperature irradiation induced effects, e.g., swelling, and the temperature dependence varies with alloy compositions. The experimental studies till present primarily have focused either on one HEA at different irradiation temperatures (Kumar et al, 2016;Yang et al, 2018) or on the effects of compositional complexity at single irradiation temperature (Jin et al, 2016c;Lu et al, 2016b). How the number and species of principal alloying elements affect the temperature dependence of irradiation response in SP-CSAs requires future systematic studies.…”

Section: Response To the Irradiations At Elevated Temperaturesmentioning

confidence: 99%

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Single-Phase Concentrated Solid-Solution Alloys: Bridging Intrinsic Transport Properties and Irradiation Resistance

Jin

Bei

2018

Front. Mater.

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Single-phase concentrated solid-solution alloys (SP-CSAs), including high entropy alloys (HEAs), are compositionally complex but structurally simple, and provide a playground of tailoring material properties through modifying their compositional complexity. The recent progress in understanding the compositional effects on the energy and mass transport properties in a series of face-centered-cubic SP-CSAs is the focus of this review. Relatively low electrical and thermal conductivities, as well as small separations between the interstitial and vacancy migration barriers have been generally observed, but largely depend on the alloying constituents. We further discuss the impact of such intrinsic transport properties on their irradiation response; the linkage to the delayed damage accumulation, slow defect aggregation, and suppressed irradiation induced swelling and segregation has been presented. We emphasize that the number of alloying elements may not be a critical factor on both transport properties and the defect behaviors under ion irradiations. The recent findings have stimulated novel concepts in the design of new radiation-tolerant materials, but further studies are demanded to enable predictive models that can quantitatively bridge the transport properties to the radiation damage.

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Section: Response To the Irradiations At Elevated Temperaturesmentioning

confidence: 66%

“…(Yang et al, 2018). Unlike in Lu et al (2016b), no voids have been observed in both cases at all the test temperatures.…”

Section: Response To the Irradiations At Elevated Temperaturesmentioning

confidence: 74%

Section: Response To the Irradiations At Elevated Temperaturesmentioning

confidence: 97%

Section: Response To the Irradiations At Elevated Temperaturesmentioning

confidence: 99%

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Single-Phase Concentrated Solid-Solution Alloys: Bridging Intrinsic Transport Properties and Irradiation Resistance

Jin

Bei

2018

Front. Mater.

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“…Recently, there has been great interest in HEAs for nuclear applications due to their apparent resistance to radiation effects [17][18][19]. One such application is for a replacement of Zr alloys as an accident-tolerant fuel cladding in nuclear fission reactors.…”

Section: Introductionmentioning

confidence: 99%

High temperature, low neutron cross-section high-entropy alloys in the Nb-Ti-V-Zr system

et al. 2019

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High-entropy alloys (HEAs) with high melting points and low thermal neutron cross-section are promising new cladding materials for generation III+ and IV power reactors. In this study a recently developed high throughput computational screening tool Alloy Search and Predict (ASAP) has been used to identify the most likely candidate single-phase HEAs with low thermal neutron cross-section, from over a million four-element equimolar combinations. The selected NbTiVZr HEA was further studied by density functional theory (DFT) for moduli and lattice parameter, and by CALPHAD to predict phase formation with temperature. HEAs of NbTiVZrx (x = 0.5, 1, 2) were produced experimentally, with Zr varied as the dominant cross-section modifier. Contrary to previous experimental work, these HEAs were demonstrated to constitute a single-phase HEA system; a result obtained using a faster cooling rate following annealing at 1200°C. However, the beta (BCC) matrix decomposed following aging at 700°C, into a combination of nano-scale beta, alpha (HCP) and C15 Laves phases.

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Microstructures and Properties of High‐Entropy Materials: Modeling, Simulation, and Experiments

Fang

Liaw

2020

Adv Eng Mater

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The performances of high‐entropy materials (HEMs), including high‐entropy alloys, high‐entropy ceramics, and high‐entropy polymers, with unique characteristics (high mixing entropy, serious lattice distortion, and short‐range order) determined by experiments are out of the ordinary, such as the excellent mechanical properties. The important research methods on HEMs are briefly introduced from the physical modeling, multiscale simulation, and experiments at various scales. The microstructures (dislocation, twinning, grain boundary, and phase) and performances (mechanical property, physical property, chemical property, optical property, medical property, and irradiation property) are summarized. Future directions of research and development with a focus on modeling and simulation in HEMs are discussed. In the next, HEMs with the unique properties would be promising candidates for industrial applications beyond conventional alloys.

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Effects of temperature on the irradiation responses of Al0.1CoCrFeNi high entropy alloy

Cited by 121 publications

References 21 publications

Single-Phase Concentrated Solid-Solution Alloys: Bridging Intrinsic Transport Properties and Irradiation Resistance

Single-Phase Concentrated Solid-Solution Alloys: Bridging Intrinsic Transport Properties and Irradiation Resistance

High temperature, low neutron cross-section high-entropy alloys in the Nb-Ti-V-Zr system

Microstructures and Properties of High‐Entropy Materials: Modeling, Simulation, and Experiments

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