Modeling of the grain boundary segregation of helium in α-Fe

被引：11
|
作者：
Suzudo, Tomoaki [1 ]
Kaburaki, Hideo [1 ]
Yamaguchi, Masatake [1 ]
机构：
[1] Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan
来源：
JOURNAL OF NUCLEAR MATERIALS | 2011年 / 417卷 / 1-3期
关键词：
MARTENSITIC STEELS; EMBRITTLEMENT;
D O I：
10.1016/j.jnucmat.2011.02.014
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We proposed a kinetic theory model of helium segregation from the bulk to the grain boundary in alpha-Fe. This model is constructed on the basis of the ab initio results of large segregation energy and large deduction in strength at the grain boundary due to helium. The simulation results of the model showed the typical segregation features as function of bulk concentration of helium and temperature in general agreement with experiment. In addition, the results are compared with McLean's model for monoatomic-layered grain boundary segregation in equilibrium, and the validity of this equilibrium model is discussed. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：1102 / 1105
页数：4
相关论文
共 50 条
  • [1] Thermodynamic and kinetic modeling of grain boundary equilibrium segregation of P in α-Fe
    Yang, Y.
    Chen, S. -L.
    CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 2017, 57 : 134 - 141
  • [2] Computational modeling of grain boundary segregation: A review
    Hu, Chongze
    Dingreville, Remi
    Boyce, Brad L.
    COMPUTATIONAL MATERIALS SCIENCE, 2024, 232
  • [3] COMPUTER MODELING OF GRAIN-BOUNDARY SEGREGATION
    CHAPMAN, MAV
    FAULKNER, RG
    ACTA METALLURGICA, 1983, 31 (05): : 677 - 689
  • [4] Grain Boundary Segregation of Substitutional Solutes/Impurities and Grain Boundary Decohesion in BCC Fe
    He, Xinfu
    Wu, Shi
    Jia, Lixia
    Wang, Dongjie
    Dou, Yankun
    Yang, Wen
    INTERNATIONAL YOUTH NUCLEAR CONGRESS 2016, IYNC2016, 2017, 127 : 377 - 386
  • [5] Grain Boundary Specific Segregation in Nanocrystalline Fe(Cr)
    Xuyang Zhou
    Xiao-xiang Yu
    Tyler Kaub
    Richard L. Martens
    Gregory B. Thompson
    Scientific Reports, 6
  • [6] Grain Boundary Specific Segregation in Nanocrystalline Fe(Cr)
    Zhou, Xuyang
    Yu, Xiao-Xiang
    Kaub, Tyler
    Martens, Richard L.
    Thompson, Gregory B.
    SCIENTIFIC REPORTS, 2016, 6
  • [7] Atomistic investigation on grain boundary effect on helium segregation and clustering in iron
    Sun, Yongjie
    Peng, Lei
    Shi, Jingyi
    Li, Liuliu
    JOURNAL OF NUCLEAR MATERIALS, 2022, 569
  • [8] Significant effect of magnetism on grain boundary segregation in γ-Fe: A systematic comparison of grain boundary segregation in nonmagnetic and paramagnetic γ-Fe by first-principles calculations
    Ito, Kazuma
    MATERIALS TODAY COMMUNICATIONS, 2024, 38
  • [9] Grain boundary segregation and grain boundary wetting
    Vilenkin, A
    DIFFUSION, SEGREGATION AND STRESSES IN MATERIALS, 2003, 216-2 : 189 - 195
  • [10] Characterization of grain boundary segregation in an Fe-Si alloy
    Lejcek, P.
    Technica, 1994, 437
12345