<i>Ab initio</i>
                    Study of He Stability in
                    <i>hcp</i>
                    -Ti

Dai, Yun Ya; Yang, Li; Peng, Shu Ming; Long, Xiao; Gao, Fei; Zu, Xu

doi:10.1088/0256-307x/27/12/123102

Cited by 4 publications

(1 citation statement)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Where E 𝑖 is the incident ion energy, M 1 is the mass of a He atom and M 2 is the mass of the encountered atom (Ti for the pure He ion irradiation). In the case of Ti in the He beam, E 𝑖 was equal to 120 eV and the energy E 𝑚 to form a complex He-vacancy in Ti material is comprised between 2.5 and 3 eV depending on the trapping site and the potentials used for the calculation [14,41]. Using the previous parameters, 𝜃 𝑐𝑟 is about 73 • .…”

Section: Surface Effects On Titaniummentioning

confidence: 99%

Enhanced formation of nanometric titanium cones by incorporation of titanium, tungsten and/or iron in a helium ion beam

Sanchez

Steiner

Lattner

et al. 2022

Surfaces and Interfaces

View full text Add to dashboard Cite

Section: Surface Effects On Titaniummentioning

confidence: 99%

Enhanced formation of nanometric titanium cones by incorporation of titanium, tungsten and/or iron in a helium ion beam

Sanchez

Steiner

Lattner

et al. 2022

Surfaces and Interfaces

View full text Add to dashboard Cite

Ab initio study of helium behavior in titanium tritides

Liang

Dai

Yang

et al. 2013

Computational Materials Science

View full text Add to dashboard Cite

Theoretical Combined Experimental Study of Unique He Behaviors in High-Entropy Alloys

Zhang

et al. 2021

Inorg. Chem.

View full text Add to dashboard Cite

Exploring new structural materials with strong He damage tolerance is one of the key tasks for the development of nuclear reactors. Helium (He), one of the most common elements in the nuclear environment, often forms undesired bubbles in metallic materials and may result in void swelling as well as high-temperature intergranular embrittlement. In this study, the behaviors of He in high-entropy alloy (HEA) TiZrHfMoNb and its constituents are systematically investigated both theoretically and experimentally. Density functional theory calculations show that the He atom prefers to occupy tetrahedral and octahedral interstitial sites in a HEA. The migration pathway for He in TiZrHfMoNb is explored and the migration energy barrier is determined. Besides, the He clustering behavior in TiZrHfMoNb is investigated. Through transmission electron microscopy analysis, a smaller He bubble size is observed in TiZrHfMoNb than in Ti, which is proposed to result from the lower tendency to form He clusters, a weaker coarsening effect, and severe lattice distortion in HEA. The current study thus provides deep insights into the He behaviors in HEAs and may help to develop structural materials with enhanced He damage tolerance in nuclear reactors.

show abstract

Ab initio Study of He Stability in hcp -Ti

Cited by 4 publications

References 22 publications

Enhanced formation of nanometric titanium cones by incorporation of titanium, tungsten and/or iron in a helium ion beam

Enhanced formation of nanometric titanium cones by incorporation of titanium, tungsten and/or iron in a helium ion beam

Ab initio study of helium behavior in titanium tritides

Theoretical Combined Experimental Study of Unique He Behaviors in High-Entropy Alloys

Contact Info

Product

Resources

About