Y2O3 and Y2Ti2O7 nanoparticles stability in oxide dispersion strengthened steels under hydrogen irradiation at elevated temperature

Ahsan Ejaz; Limin Zhang; Zhiqiang Wang; Muhammad Bilal; Xuan Meng; Tong Liu; Madiha Shadab; Tieshan Wang

doi:10.1016/j.nimb.2025.165741

Y₂O₃ and Y₂Ti₂O₇ nanoparticles stability in oxide dispersion strengthened steels under hydrogen irradiation at elevated temperature

Ahsan Ejaz
, Limin Zhang^*
, Zhiqiang Wang
, Muhammad Bilal
, Xuan Meng
, Tong Liu
, Madiha Shadab
, Tieshan Wang

^*Corresponding author for this work

School of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Oxide dispersion-strengthened steels with Y₂O₃ and Y₂Ti₂O₇ nanoparticles (NPs) and Chinese low-activation ferritic/martensitic steel (CLF) samples were fabricated by the mechanical alloying method and sequentially irradiated at 550 °C with 50 keV H₂⁺ ions to various fluences. The hydrogen-bubble density and average bubble size are significantly higher in CLF steel. After irradiation, the size of NPs in YTO and YO steel reduced to ∼ 7 nm and ∼ 15 nm; finer NPs in YTO steel enhanced the resistance to the irradiation-induced defects. The absence of NPs in CLF causes the formation of dislocation networks. Y₂Ti₂O₇ NPs phases in YTO steel are highly stable and show semi-coherent orientation, while YAlO₃ NPs phases show incoherent orientation with the matrix. Y₂Ti₂O₇ NPs resist defect formation by reducing the internal stresses and obstructing dislocation networks. This study suggests that introducing Y₂Ti₂O₇ NP into ODS steel presents a promising approach to improving the resistance towards irradiation damage.

Original language	English
Article number	165741
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	565
DOIs	https://doi.org/10.1016/j.nimb.2025.165741
State	Published - Aug 2025

Keywords

EDS
Hydrogen irradiation
Nanoparticles
ODS steel

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10.1016/j.nimb.2025.165741

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Ejaz, A., Zhang, L., Wang, Z., Bilal, M., Meng, X., Liu, T., Shadab, M., & Wang, T. (2025). Y₂O₃ and Y₂Ti₂O₇ nanoparticles stability in oxide dispersion strengthened steels under hydrogen irradiation at elevated temperature. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 565, Article 165741. https://doi.org/10.1016/j.nimb.2025.165741

@article{7dba834f43fa48f89bf53e8948964e9a,

title = "Y2O3 and Y2Ti2O7 nanoparticles stability in oxide dispersion strengthened steels under hydrogen irradiation at elevated temperature",

abstract = "Oxide dispersion-strengthened steels with Y2O3 and Y2Ti2O7 nanoparticles (NPs) and Chinese low-activation ferritic/martensitic steel (CLF) samples were fabricated by the mechanical alloying method and sequentially irradiated at 550 °C with 50 keV H2+ ions to various fluences. The hydrogen-bubble density and average bubble size are significantly higher in CLF steel. After irradiation, the size of NPs in YTO and YO steel reduced to ∼ 7 nm and ∼ 15 nm; finer NPs in YTO steel enhanced the resistance to the irradiation-induced defects. The absence of NPs in CLF causes the formation of dislocation networks. Y2Ti2O7 NPs phases in YTO steel are highly stable and show semi-coherent orientation, while YAlO3 NPs phases show incoherent orientation with the matrix. Y2Ti2O7 NPs resist defect formation by reducing the internal stresses and obstructing dislocation networks. This study suggests that introducing Y2Ti2O7 NP into ODS steel presents a promising approach to improving the resistance towards irradiation damage.",

keywords = "EDS, Hydrogen irradiation, Nanoparticles, ODS steel",

author = "Ahsan Ejaz and Limin Zhang and Zhiqiang Wang and Muhammad Bilal and Xuan Meng and Tong Liu and Madiha Shadab and Tieshan Wang",

note = "Publisher Copyright: {\textcopyright} 2025 Elsevier B.V.",

year = "2025",

month = aug,

doi = "10.1016/j.nimb.2025.165741",

language = "英语",

volume = "565",

journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",

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}

Ejaz, A, Zhang, L, Wang, Z, Bilal, M, Meng, X, Liu, T, Shadab, M & Wang, T 2025, 'Y₂O₃ and Y₂Ti₂O₇ nanoparticles stability in oxide dispersion strengthened steels under hydrogen irradiation at elevated temperature', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, vol. 565, 165741. https://doi.org/10.1016/j.nimb.2025.165741

Y₂O₃ and Y₂Ti₂O₇ nanoparticles stability in oxide dispersion strengthened steels under hydrogen irradiation at elevated temperature. / Ejaz, Ahsan; Zhang, Limin; Wang, Zhiqiang et al.
In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 565, 165741, 08.2025.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Y2O3 and Y2Ti2O7 nanoparticles stability in oxide dispersion strengthened steels under hydrogen irradiation at elevated temperature

AU - Ejaz, Ahsan

AU - Zhang, Limin

AU - Wang, Zhiqiang

AU - Bilal, Muhammad

AU - Meng, Xuan

AU - Liu, Tong

AU - Shadab, Madiha

AU - Wang, Tieshan

PY - 2025/8

Y1 - 2025/8

N2 - Oxide dispersion-strengthened steels with Y2O3 and Y2Ti2O7 nanoparticles (NPs) and Chinese low-activation ferritic/martensitic steel (CLF) samples were fabricated by the mechanical alloying method and sequentially irradiated at 550 °C with 50 keV H2+ ions to various fluences. The hydrogen-bubble density and average bubble size are significantly higher in CLF steel. After irradiation, the size of NPs in YTO and YO steel reduced to ∼ 7 nm and ∼ 15 nm; finer NPs in YTO steel enhanced the resistance to the irradiation-induced defects. The absence of NPs in CLF causes the formation of dislocation networks. Y2Ti2O7 NPs phases in YTO steel are highly stable and show semi-coherent orientation, while YAlO3 NPs phases show incoherent orientation with the matrix. Y2Ti2O7 NPs resist defect formation by reducing the internal stresses and obstructing dislocation networks. This study suggests that introducing Y2Ti2O7 NP into ODS steel presents a promising approach to improving the resistance towards irradiation damage.

AB - Oxide dispersion-strengthened steels with Y2O3 and Y2Ti2O7 nanoparticles (NPs) and Chinese low-activation ferritic/martensitic steel (CLF) samples were fabricated by the mechanical alloying method and sequentially irradiated at 550 °C with 50 keV H2+ ions to various fluences. The hydrogen-bubble density and average bubble size are significantly higher in CLF steel. After irradiation, the size of NPs in YTO and YO steel reduced to ∼ 7 nm and ∼ 15 nm; finer NPs in YTO steel enhanced the resistance to the irradiation-induced defects. The absence of NPs in CLF causes the formation of dislocation networks. Y2Ti2O7 NPs phases in YTO steel are highly stable and show semi-coherent orientation, while YAlO3 NPs phases show incoherent orientation with the matrix. Y2Ti2O7 NPs resist defect formation by reducing the internal stresses and obstructing dislocation networks. This study suggests that introducing Y2Ti2O7 NP into ODS steel presents a promising approach to improving the resistance towards irradiation damage.

KW - EDS

KW - Hydrogen irradiation

KW - Nanoparticles

KW - ODS steel

UR - https://www.scopus.com/pages/publications/105004874135

U2 - 10.1016/j.nimb.2025.165741

DO - 10.1016/j.nimb.2025.165741

M3 - 文章

AN - SCOPUS:105004874135

SN - 0168-583X

VL - 565

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

M1 - 165741

ER -

Y₂O₃ and Y₂Ti₂O₇ nanoparticles stability in oxide dispersion strengthened steels under hydrogen irradiation at elevated temperature

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