Investigation of spark plasma sintered oxide-dispersion strengthened steels by means of small-angle neutron scattering

被引:14
作者
Hilger, I. [1 ,2 ]
Bergner, F. [1 ]
Ulbricht, A. [1 ]
Wagner, A. [1 ]
Weissgaerber, T. [3 ]
Kieback, B. [2 ,3 ]
Heintze, C. [1 ]
Dewhurst, C. D. [4 ]
机构
[1] Helmholtz Zentrum Dresden Rossendorf, Inst Ion Beam Phys & Mat Res, Bautzner Landstr 400, D-01328 Dresden, Germany
[2] Tech Univ Dresden, Inst Werkstoffwissensch, D-01062 Dresden, Germany
[3] Fraunhofer Inst Mfg Technol & Adv Mat, Branch Lab Dresden, D-01277 Dresden, Germany
[4] Inst Laue Langevin, 71 Ave Martyrs, F-38000 Grenoble, France
关键词
Nuclear reactor materials; Nanostructured materials; Powder metallurgy; Mechanical alloying; Sintering; Small-angle neutron scattering; NANOSTRUCTURED FERRITIC ALLOYS; ODS ALLOYS; MECHANICAL-PROPERTIES; MARTENSITIC STEELS; THERMAL-STABILITY; SIZE DISTRIBUTION; AB-INITIO; PARTICLES; NANOCLUSTERS; MICROSTRUCTURE;
D O I
10.1016/j.jallcom.2016.06.238
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Spark plasma sintering (SPS) is an advanced consolidation technique, which particularly allows coarsening of the microstructure to be limited. The basis for the characteristics of the strengthening nanofeatures is already set in the milling process preceding SPS. The present study is focused on the dependence of the size distribution and nature of the nanofeatures in an ODS Fe-14Cr-1W-0.4Ti alloy as a function of the applied milling parameters and amount of added Y2O3 while keeping the SPS parameters constant. Statistically reliable averages of the particle characteristics representative of a macroscopic sample volume have been obtained by means of small-angle neutron scattering (SANS). The measured magnetic-to-nuclear scattering ratios have been critically compared to values calculated on the basis of structures and compositions reported in the literature. Milling parameters suitable to completely transform the added Y2O3 into Ti-containing nm-sized oxide particles have been identified. Two size ranges of particles have been analyzed separately: 0.5-3 nm and 3-15 nm (radius). The former size range is dominant in all ODS samples, the magnetic-to-nuclear scattering ratio indicates these particles to be predominantly Y2TiO5 and/or Y2Ti2O7. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:927 / 935
页数:9
相关论文
共 67 条
  • [1] On the role of alloy composition and processing parameters in nanocluster formation and dispersion strengthening in nanostuctured ferritic alloys
    Alinger, M. J.
    Odette, G. R.
    Hoelzer, D. T.
    [J]. ACTA MATERIALIA, 2009, 57 (02) : 392 - 406
  • [2] Baker RG., 1959, Journal of Iron and Steel Institute, V192, P257
  • [3] An ab initio study of Ti-Y-O nanocluster energetics in nanostructured ferritic alloys
    Barnard, L.
    Odette, G. R.
    Szlufarska, I.
    Morgan, D.
    [J]. ACTA MATERIALIA, 2012, 60 (03) : 935 - 947
  • [4] Beaven P. A., 1986, Atomic Transport and Defects in Metals by Neutron Scattering. Proceedings of an IFF-ILL Workshop, P228
  • [5] Assessment of consolidation of oxide dispersion strengthened ferritic steels by spark plasma sintering: from laboratory scale to industrial products
    Boulnat, X.
    Fabregue, D.
    Perez, M.
    Urvoy, S.
    Hamon, D.
    de Carlan, Y.
    [J]. POWDER METALLURGY, 2014, 57 (03) : 204 - 211
  • [6] Microstructure Evolution in Nano-reinforced Ferritic Steel Processed By Mechanical Alloying and Spark Plasma Sintering
    Boulnat, Xavier
    Perez, Michel
    Fabregue, Damien
    Douillard, Thierry
    Mathon, Marie-Helene
    De Carlan, Yann
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2014, 45A (03): : 1485 - 1497
  • [7] Morphology, structure, and chemistry of nanoclusters in a mechanically alloyed nanostructured ferritic steel
    Brandes, M. C.
    Kovarik, L.
    Miller, M. K.
    Mills, M. J.
    [J]. JOURNAL OF MATERIALS SCIENCE, 2012, 47 (08) : 3913 - 3923
  • [8] CHROMIUM(II) OXIDE
    BRAUER, G
    REUTHER, H
    WALZ, H
    ZAPP, KH
    [J]. ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1969, 369 (3-6): : 144 - &
  • [9] Nanoscale characterization and formation mechanism of nanoclusters in an ODS steel elaborated by reactive-inspired ball-milling and annealing
    Brocq, M.
    Radiguet, B.
    Poissonnet, S.
    Cuvilly, F.
    Pareige, P.
    Legendre, F.
    [J]. JOURNAL OF NUCLEAR MATERIALS, 2011, 409 (02) : 80 - 85
  • [10] Cardarelli Francois., 2008, MAT HDB, V2nd