Advanced Search
Volume 42 Issue 9
Sep.  2016
Turn off MathJax
Article Contents
Journal of Beijing University of Aeronautics and Astronautics  > 2016  >  42(9): 1999-2007.
DING Dan, ZHANG Ying, YUAN Yue, et al. Surface cracking and melting behavior of tungsten-vanadium alloys under thermal shock[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(9): 1999-2007. doi: 10.13700/j.bh.1001-5965.2015.0597(in Chinese)
Citation: DING Dan, ZHANG Ying, YUAN Yue, et al. Surface cracking and melting behavior of tungsten-vanadium alloys under thermal shock[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(9): 1999-2007. doi: 10.13700/j.bh.1001-5965.2015.0597(in Chinese)
shu

Surface cracking and melting behavior of tungsten-vanadium alloys under thermal shock

doi: 10.13700/j.bh.1001-5965.2015.0597
  • 1.

    School of Physics and Nuclear Energy Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • 2. Beijing Key Laboratory of Advanced Nuclear Materials and Physics, Beijing University of Aeronautics and Astronautics, Beijing 10008

  • 3. Southwestern Institute of Physics, Chengdu 610041, China

  • 4. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

Funds:  the Special Plan of Ministory of Science and Technology of the International Thermonuclear Experimental Reactor (2013GB109003); the Fundamental Research Funds for the Central Universities (5010000201511901)
  • Received Date: 14 Sep 2015
  • Publish Date: 20 Sep 2016
    Abstract
  • Surface cracking and melting behavior of tungsten-vanadium (W-V) alloys prepared by mechanical alloying + hot pressing (HP) sintering under thermal shock has been investigated in this paper. Mass fraction of V in the alloy is taken as a variable to explore the effect of mass fraction of V (1%-10%) on thermal shock resistance of W-V alloys. A variety of test methods such as optical microscope, scanning electron microscope, energy disperse spectrometer, and nano indentation are used to analyze the structure characteristics of W-V alloys produced by HP sintering, and the characteristics of surface cracking and melting behavior of W-V alloys under thermal shock. Results show that under the conditions of 1 800℃ and 20 MPa，and with heat preservation for 2 h, W-V alloys with high density and high alloying degree can be produced. Moreover, with the increase of vanadium content, the density of W-V alloys increases. In the alloys, the hardness of tungsten matrix is bigger than vanadium rich phase, and therefore, tungsten matrix's ability of preventing the crack growth is obviously greater than vanadium rich phase, when exposed to thermal shock in international thermonuclear experimental reactor (ITER) edge localized modes (ELMs) which are simulated by high energy electron beam; with the increase of vanadium content, the cracking threshold and melting threshold both decrease. The underlying mechanism is discussed detailed in this paper.

     

    • FullText(HTML)
  • loading
    • References(26)
  • [1]
    LINKE J,LORENZETTO P,MAJERUS P,et al.EU development of high heat flux components[J].Fusion Science and Technology,2005,47(3):678-685.
    [2]
    AYMAR R.ITER R&D:Executive summary:Design overview[J].Fusion Engineering and Design,2001,55(2):107-118.
    [3]
    HOLTKAMP N.The status of the ITER design[J].Fusion Engineering and Design,2009,84(2-6):98-105.
    [4]
    PHILIPPS V.Tungsten as material for plasma-facing components in fusion devices[J].Journal of Nuclear Materials,2011,415(1):S2-S9.
    [5]
    BARABASH V,AKIBA M,MAZUL I,et al.Selection,development and characterisation of plasma facing materials for ITER[J].Journal of Nuclear Materials,1996,233-237(1):718-723.
    [6]
    LASSER R,BALUC N,BOUTARD J L,et al.Structural materials for DEMO:The EU development,strategy,testing and modeling[J].Fusion Engineering and Design,2007,82(5-14):511-520.
    [7]
    SMID I,AKIBA G,VIEIDER M,et al.Development of tungsten armor and bonding to copper for plasma-interactive components[J].Journal of Nuclear Materials,1998,258-263(1):160-172.
    [8]
    ARSHAD K,GUO W,WANG J,et al.Influence of vanadium precursor powder size on microstructures and properties of W-V alloys[J].International Journal of Refractory Metals and Hard Materials,2015,50:59-64.
    [9]
    ARSHAD K,ZHAO M Y,YUAN Y,et al.Effects of vanadium concentration on the densification,microstructures and mechanical properties of tungsten vanadium alloys[J].Journal of Nuclear Materials,2014,455(1-3):96-100.
    [10]
    ARSHAD K,ZHAO M Y,YUAN Y,et al.Thermal stability evaluation of microstructures and mechanical properties of tungsten vanadium alloys[J].Modern Physics Letters B,2014,28(26):1450207.
    [11]
    KEMP R,COTTRELL G A,BHADESHIA H K D H.Designing optimised experiments for the international fusion materials irradiation facility[J].Journal of Nuclear Materials,2007,367-370(Part B):1586-1589.
    [12]
    ARSHAD K,DING D,WANG J,et al.Surface cracking of tungsten-vanadium alloys under transient heat loads[J].Nuclear Materials and Energy,2015,3-4:32-36.
    [13]
    LIU X,TAMURE S,TOKUNAGE K,et al.High heat flux properties of pure tungsten and plasma sprayed tungsten coatings[J].Journal of Nuclear Materials,2004,329-333(Part A):687-691.
    [14]
    ARSHAD K,ZHANG Y,YUAN Y,et al.The role of vanadium additive in the activated sintering and shrinkage rate of tungsten-vanadium alloys[J].Modern Physics Letters B,2015,29(14)：1550071.
    [15]
    ARSHAD K,ZHAO M Y,YUAN Y,et al.Effects of consolidation conditions on microstructures and properties of tungsten-vanadium alloy[C]//11th International Bhurban Conference on Applied Sciences and Technology.Piscataway,NJ:IEEE Press,2014:12-17.
    [16]
    ZHAO M,ZHOU Z,DING Q M,et al.Effect of rare earth elements on the consolidation behavior and microstructure of tungsten alloys[J].International Journal of Refractory Metals and Hard Materials,2015,48:19-23.
    [17]
    MAKHANKOV A,BARABASH V,MAZUL I,et al.Performance of the different tungsten grades under fusion relevant power loads[J].Journal of Nuclear Materials,2001,290-293:1117-1122.
    [18]
    LINKE J,LOEWENHOFF T,MASSAUT V.Performance of different tungsten grades under transient thermal loads[J].Nuclear Fusion,2011,51(7):73017-73022.
    [19]
    冯正清.关于灰铸铁硬度和强度之间的关系的讨论及其应用[J].铸造，1985(6):34-35.FENG Z Q.Discussion of the relationship between the hardness and strength for gray cast iron and its application[J].Foundry,1985(6):34-35(in Chinese).
    [20]
    操龙飞.金属材料的热膨胀特性研究[D].武汉:武汉科技大学,2013:5-7.CAO L F.Study on thermal expansion properties of steels[D].Wuhan:Wuhan University of Science and Technology,2013:5-7(in Chinese).
    [21]
    HUANG B,XIAO Y,HE B,et al.Effect of potassium doping on the thermal shock behavior of tungsten[J].International Journal of Refractory Metals and Hard Materials,2015,51:19-24.
    [22]
    DECHAUMPHAI E,BARTON J L,TESMER J R,et al.Near-surface thermal characterization of plasma facing components using the 3-omega method[J].Journal of Nuclear Materials,2014,455(1-3):56-60.
    [23]
    HASSANEIN A,BELAN V,KONKASHBAEV I,et al.Modeling and simulation of melt-layer erosion during plasma disruption[J].Journal of Nuclear Materials,1997,241-243(1):288-293.
    [24]
    COENEN J W,BAZYLEV B,BREZINSEK S,et al.Tungsten melt layer motion and splashing on castellated tungsten surfaces at the tokamak TEXTOR[J].Journal of Nuclear Materials,2011,415(1):78-82.
    [25]
    HUANG S,VLEUGELS J,LI L,et al.Experimental investigation and thermodynamic assessment of the V-W-C system[J].Journal of Alloys and Compounds,2005,395(1-2):68-74.
    [26]
    ZHOU Z J,PINTSUK G,LINKE J,et al.Transient high heat load tests on pure ultra-fine grained tungsten fabricated by resistance sintering under ultra-high pressure[J].Fusion Engineering and Design,2010,85(1):115-121.
    • Relative Articles
    • Supplements(0)
    • Cited By
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Get Citation
    PDF
    XML

    Article Metrics

    Article views(850) PDF downloads(289) Cited by()
    Proportional views
    Related

    Copyright © Journal of Beijing University of Aeronautics and Astronautics

    Address: Editorial Department of Journal of Beijing University of Aeronautics and Astronautics, 37 Xueyuan Road, Haidian District, Beijing Post Code: 100191 Email: jbuaa@buaa.edu.cn

    Supported by: Beijing Renhe Information Technology Co., Ltd.    

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return