The effects of radiation-induced grain subdivision and dislocations on the fracture properties of uranium dioxide

被引：4

作者：

Chen, Tianyi ^{[1
]}

Frazer, David ^{[2
]}

Cullison, Mack ^{[1
]}

Teng, Fei ^{[2
]}

Lian, Jie ^{[3
]}

Mo, Kun ^{[4
]}

Cappia, Fabiola ^{[2
]}

机构：

[1] Oregon State Univ, Sch Nucl Sci & Engn, 1791 SW Campus Way, Corvallis, OR USA

[2] Idaho Natl Lab, Characterizat & Adv Post Irradiat Examinat Div, POB 1625, Idaho Falls, ID 83415 USA

[3] Rensselaer Polytech Inst, Mech Aerosp & Nucl Engn Dept, Troy, NY 12180 USA

[4] Argonne Natl Lab, 9700 S Cass Ave, Lemont, IL 60439 USA

来源：

JOURNAL OF NUCLEAR MATERIALS | 2023年 / 577卷

关键词：

Swift heavy ion; HBS; Polygonization; Cracking; Young?s modulus; YOUNGS MODULUS; BURNUP; UO2; TOUGHNESS; FUELS;

D O I：

10.1016/j.jnucmat.2023.154297

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Microcantilever bending tests were applied on uranium dioxide samples irradiated by 84 MeV Xe ions. Depending on the initial grain sizes, different levels of grain subdivision and dislocation development were observed near the irradiated surface. These radiation damage features were shown to degrade the fracture properties of both samples. The fundamental aspects of the radiation-microstructure-property relationships were discussed in this paper, taking a holistic consideration of the microcantilever bending data, fractography and microstructures. The separate effects of the irradiation-induced grain subdivision and dislocations on the fracture initiation and propagation of uranium dioxide were discussed. It was observed that radiation-induced dislocations and grain subdivision, without the presence of Xe bubbles co-located with the defects, cause reductions in the Young's modulus, fracture strain, and fracture stress, and a transition to intergranular fracture. (c) 2023 Elsevier B.V. All rights reserved.

引用

页数：7

共 32 条

[1] Materials challenges for nuclear systems [J].

Allen, Todd ;

Busby, Jeremy ;

Meyer, Mitch ;

Petti, David .

MATERIALS TODAY, 2010, 13 (12) :14-23

[2]

[Anonymous], 2010, NUCL INSTR METH PH B, DOI [DOI 10.1016/j.nimb.2010.02.091, DOI 10.1016/J.NIMB.2010.02.091]

[3] Grain subdivision and structural modifications by high-energy heavy ions in UO2 with different initial grain size [J].

Cappia, F. ;

Cullison, M. ;

Chen, T. ;

Kombaiah, B. ;

Bawane, K. ;

Teng, F. ;

Madden, J. ;

Perez, E. ;

Yao, T. ;

Lei, P. ;

Lian, J. ;

Miao, Y. ;

Mo, K. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2022, 515 :48-60

[4] Microhardness and Young's modulus of high burn-up UO2 fuel [J].

Cappia, F. ;

Pizzocri, D. ;

Marchetti, M. ;

Schubert, A. ;

Van Uffelen, P. ;

Luzzi, L. ;

Papaioannou, D. ;

Macian-Juan, R. ;

Rondinella, V. V. .

JOURNAL OF NUCLEAR MATERIALS, 2016, 479 :447-454

[5]

Cappia F., 2021, J NUCL MATER

[6]

Cappia F., 2022, J NUCL MATER

[7] Grain Boundary and Lattice Fracture Toughness of UO2 Measured Using Small-Scale Mechanics [J].

Feng, Lin ;

Finkeldei, Sarah C. ;

Heuser, Brent ;

Dillon, Shen J. ;

Nelson, Andrew T. .

JOM, 2020, 72 (05) :2075-2081

[8] In-Situ Transmission Electron Microscopy Microcantilever and Nanoindentation Testing of UO2 [J].

Frazer, D. ;

Shaffer, B. ;

Peralta, P. ;

Hosemann, P. .

JOM, 2020, 72 (08) :3028-3036

[9]

Frazer D., 2018, Elevated Temperature Small Scale Mechanical Testing of Uranium Dioxide, P115

[10] Micro-cantilever beam experiments and modeling in porous polycrystalline UO2 [J].

Gong, Bowen ;

Frazer, David ;

Shaffer, Benjamin ;

Lim, Harn Chyi ;

Hosemann, Peter ;

Peralta, Pedro .

JOURNAL OF NUCLEAR MATERIALS, 2021, 557

← 1 2 3 4 →