Graphical representation for isothermal kinetics of non-equilibrium grain-boundary segregation

被引：17
作者：
Wang, Kai [1 ]
Xu, TingDong [1 ]
Song, ShenHua [2 ]
Shao, Chong [1 ]
机构：
[1] Cent Iron & Steel Res Inst, Superalloy Dept, 76 Xueyuan Nanlu, Beijing 100081, Peoples R China
[2] Harbin Inst Technol, Shenzhen Grad Sch, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
来源：
MATERIALS CHARACTERIZATION | 2011年 / 62卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Ni-base alloys; Grain boundaries; Non-equilibrium segregation; TENSILE PROPERTIES; CRITICAL TIME; EMBRITTLEMENT; PHOSPHORUS; SULFUR; ALLOYS; STEEL; MODEL;
D O I：
10.1016/j.matchar.2011.03.008
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A model of non-equilibrium grain-boundary segregation of solute is expressed with graphs for the isothermal aging at various temperatures after quenching from a solution temperature. It is found from the graphical representations that when the samples are aged for a certain time at various temperatures there is a maximum value in the segregation concentration at a certain temperature. The aging time is equal or close to the critical time of non-equilibrium segregation corresponding to this temperature. This finding is experimentally confirmed with sulfur in an Ni-base superalloy with the aid of Auger electron spectroscopy. As an application of the new finding, a mechanism for intermediate temperature embrittlement of alloys is suggested and identified experimentally with tension tests of the superalloy. Crown Copyright (C) 2011 Published by Elsevier Inc. All rights reserved.
引用
收藏
页码：575 / 581
页数：7
相关论文
共 50 条
  • [21] Non-equilibrium Grain-boundary Segregation of Phosphorus in an Fe-17Cr Alloy
    Kai Wang
    Hong Si
    Journal of Iron and Steel Research International, 2014, 21 : 1136 - 1139
  • [22] A unified model of grain-boundary segregation kinetics
    Wu, Jian
    Song, Shenhua
    JOURNAL OF APPLIED PHYSICS, 2011, 110 (06)
  • [23] Deformation-induced non-equilibrium grain boundary segregation in dilute alloys
    Song, S. -H.
    Zhang, Q.
    Weng, L. -Q.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 473 (1-2): : 226 - 232
  • [24] Non-equilibrium grain boundary segregation of phosphorous during high temperature plastic deformation
    Chen Xian-Miao
    Song Shen-Hua
    ACTA PHYSICA SINICA, 2009, 58 (06) : S183 - S188
  • [25] Non-equilibrium grain boundary segregation kinetics of phosphorus in 12Cr1MoV steel at different solution temperatures
    Li Qingfen
    Li Li
    Zheng Lei
    Liu Erbao
    Jin Guo
    Yang Shanglin
    Journal of Materials Science, 2004, 39 : 6551 - 6554
  • [26] NON-EQUILIBRIUM SEGREGATION OF SOLUTE TO GRAIN BOUNDARIES
    CHU Youyi ZHANG Sanhong HE Xinlai KE Jun(T.Ko) University of Science and Technology Beijing
    Acta Metallurgica Sinica(English Letters), 1990, (01) : 40 - 45
  • [27] Analysis of grain-boundary segregation of hydrogen in bcc-Fe polycrystals via a nano-polycrystalline grain-boundary model
    Ito, Kazuma
    Tanaka, Yuta
    Tsutsui, Kazumasa
    Sawada, Hideaki
    COMPUTATIONAL MATERIALS SCIENCE, 2023, 225
  • [28] Intermediate-temperature embrittlement induced by non-equilibrium grain-boundary segregation of sulfur in Ni-Cr-Fe alloy
    Wang Kai
    Xu TingDong
    Wang YanQing
    Du JinHui
    PHILOSOPHICAL MAGAZINE LETTERS, 2009, 89 (11) : 725 - 733
  • [29] Mechanism Study on Hot Ductility of 2.25Cr1Mo Alloy Based on Non-Equilibrium Grain-Boundary Segregation
    Wang Kai
    Liu Liu
    Xu Tingdong
    Dong Xuedong
    ACTA METALLURGICA SINICA, 2017, 53 (03) : 345 - 350
  • [30] NON-EQUILIBRIUM SOLUTE SEGREGATION TO AUSTENITIC GRAIN BOUNDARY IN FERRUM-NICKLE ALLOY
    P. Wu
    Acta Metallurgica Sinica(English Letters), 2001, (06) : 525 - 531
12345