Trends in vacancy distribution and hardness of high temperature neutron irradiated single crystal tungsten

被引：42
|
作者：
Bonny, G. [1 ]
Konstantinovic, M. J. [1 ]
Bakaeva, A. [1 ]
Yin, C. [1 ,2 ]
Castin, N. [1 ]
Mergia, K. [3 ]
Chatzikos, V [3 ]
Dellis, S. [3 ]
Khvan, T. [1 ,4 ]
Bakaev, A. [1 ]
Dubinko, A. [1 ]
Terentyev, D. [1 ]
机构：
[1] Nucl Mat Sci Inst, SCK CEN, Boeretang 200, B-2400 Mol, Belgium
[2] Catholic Univ Louvain, Inst Mech Mat & Civil Engn, B-1348 Louvain La Neuve, Belgium
[3] Natl Ctr Sci Res Demokritos, Inst Nucl & Radiol Sci & Technol Energy & Safety, Athens 15341, Greece
[4] Univ Liege, Pl 20 Aout 7, B-4000 Liege, Belgium
来源：
ACTA MATERIALIA | 2020年 / 198卷
关键词：
Tungsten; Neutron irradiation; Positron annihilation spectroscopy; Micro-hardness; Kinetic Monte Carlo; Dispersed barrier model; FUSION POWER-PLANT; MONTE-CARLO MODEL; EDGE; MICROSTRUCTURAL DEVELOPMENT; PURE TUNGSTEN; RADIATION-DAMAGE; INDUCED DEFECTS; HE-IONS; EVOLUTION; ENERGY;
D O I：
10.1016/j.actamat.2020.07.047
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The aim of the present study is to extend the knowledge about the formation and thermal stability of vacancy-type defects in tungsten under neutron irradiation, thereby mimicking the temperature and neutron flux expected in the ITER divertor. Neutron irradiation of single crystal tungsten, W(100), in the temperature range 60 0-1200 degrees C is performed up to 0.12 dpa. Positron annihilation spectroscopy is employed to detect the presence of open volume defects, while hardness tests are applied to relate the irradiation-induced defects with the modification of mechanical properties. Rationalization of the experimental results is enhanced by the application of a kinetic Monte Carlo simulation tool, applied to model the microstructural evolution under the neutron irradiation process. The relation between radiation microstructure and hardness is explained via a dispersed barrier model. (C) 2020 SCK CEN. Published by Elsevier Ltd on behalf of Acta Materialia Inc. All rights reserved.
引用
收藏
页码：1 / 9
页数：9
相关论文
共 50 条
  • [1] Anisotropy in the hardness of single crystal tungsten before and after neutron irradiation
    Yin, Chao
    Bonny, Giovanni
    Terentyev, Dmitry
    JOURNAL OF NUCLEAR MATERIALS, 2021, 546
  • [2] Deuterium retention in neutron-irradiated single-crystal tungsten
    Shimada, M.
    Oya, Y.
    Wampler, W. R.
    Yamauchi, Y.
    Taylor, C. N.
    Garrison, L. M.
    Buchenauer, D. A.
    Hatano, Y.
    FUSION ENGINEERING AND DESIGN, 2018, 136 : 1161 - 1167
  • [3] HIGH-TEMPERATURE RECOVERY OF NEUTRON-IRRADIATED TUNGSTEN
    KEYS, LK
    SMITH, JP
    MOTEFF, J
    BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1968, 13 (03): : 463 - &
  • [4] Development of vacancy clusters in neutron-irradiated copper at high temperature
    Shimomura, Y
    Mukouda, I
    JOURNAL OF NUCLEAR MATERIALS, 2000, 283 (283-287) : 249 - 254
  • [5] VACANCY DAMAGE IN HEAVY ION AND NEUTRON-IRRADIATED TUNGSTEN
    BUSWELL, JT
    PHILOSOPHICAL MAGAZINE, 1970, 22 (178): : 787 - &
  • [6] High temperature hardness of bulk single crystal GaN
    Yonenaga, I
    Hoshi, T
    Usui, A
    MRS INTERNET JOURNAL OF NITRIDE SEMICONDUCTOR RESEARCH, 2000, 5 : art. no. - W3.90
  • [7] D retention and depth profile behavior for single crystal tungsten with high temperature neutron irradiation
    Oya, Y.
    Sun, F.
    Yamauchi, Y.
    Nobuta, Y.
    Shimada, M.
    Taylor, C. N.
    Wampler, W. R.
    Nakata, M.
    Garrison, L. M.
    Hatano, Y.
    JOURNAL OF NUCLEAR MATERIALS, 2020, 539
  • [8] ON VACANCY CLUSTERS IN NEUTRON IRRADIATED NICKEL AT LOW TEMPERATURE
    BOURRET, A
    LEVELUT, AM
    PHYSICA STATUS SOLIDI, 1970, 37 (02): : K101 - &
  • [9] Decoration of voids with rhenium and osmium transmutation products in neutron irradiated single crystal tungsten
    Lloyd, Matthew J.
    Abernethy, Robert G.
    Gilbert, Mark R.
    Griffiths, Ian
    Bagot, Paul A. J.
    Duc Nguyen-Manh
    Moody, Michael P.
    Armstrong, David E. J.
    SCRIPTA MATERIALIA, 2019, 173 : 96 - 100
  • [10] Effect of crystal orientation on hardness of He+ ion irradiated tungsten
    Huang, Shilin
    Ran, Guang
    Lei, Penghui
    Chen, Nanjun
    Wu, Shenghua
    Li, Ning
    Shen, Qiang
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2017, 406 : 585 - 590
12345