Thermal vacancies and the yield anomaly of FeAl

被引：56
|
作者：
George, EP
Baker, I
机构：
[1] Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA
[2] Dartmouth Coll, Thayer Sch Engn, Hanover, NH 03755 USA
来源：
INTERMETALLICS | 1998年 / 6卷 / 7-8期
关键词：
iron aluminides; based on FeAl; creep; mechanical properties at high temperature; yield stress; defects : point defects; mechanical properties; theory;
D O I：
10.1016/S0966-9795(98)00063-6
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：
We review here the George-Baker model for the yield strength anomaly of FeAl which is based on hardening by thermal vacancies at intermediate temperatures and dislocation creep at high temperatures. Results of up-quenching and down-quenching experiments; which corroborate the vacancy hardening mechanism, are discussed. Some implications of the model are compared with available experimental results. (C) 1998 Elsevier Science Limited. All rights reserved.
引用
收藏
页码：759 / 763
页数：5
相关论文
共 50 条
  • [1] On the yield stress anomaly in stoichiometric FeAl
    Dartmouth Coll, Hanover, United States
    Mater Sci Eng A Struct Mater Prop Microstruct Process, (109-117):
  • [2] On the yield stress anomaly in stoichiometric FeAl
    Baker, I
    Yang, Y
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1997, 240 : 109 - 117
  • [3] A model for the yield strength anomaly in FeAl
    Baker, I
    George, EP
    HIGH-TEMPERATURE ORDERED INTERMETALLIC ALLOYS VII, 1997, 460 : 373 - 378
  • [4] Yield stress anomaly in B2 FeAl
    Yoshimi, K
    Hanada, S
    Yoo, MH
    HIGH-TEMPERATURE ORDERED INTERMETALLIC ALLOYS VII, 1997, 460 : 313 - 324
  • [5] The yield stress anomaly in stoichiometric FeAl at high strain rate
    Yang, Y
    Baker, I
    Gray, GT
    Cady, C
    SCRIPTA MATERIALIA, 1999, 40 (04) : 403 - 408
  • [6] The effect of boron on the yield strength anomaly in FeAl single crystals
    George, EP
    Wu, DM
    Lee, EH
    Baker, I
    PRICM 4: FORTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, VOLS I AND II, 2001, : 815 - 818
  • [7] Thermal vacancies and high-temperature mechanical properties of FeAl
    Schaefer, HE
    Damson, B
    Weller, M
    Arzt, E
    George, EP
    PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1997, 160 (02): : 531 - 540
  • [8] Vacancies in FeAl and NiAl
    Cottrell, AH
    INTERMETALLICS, 1997, 5 (06) : 467 - 469
  • [9] Vacancies, vacancy aggregates and hardening in FeAl
    Morris, MA
    George, O
    Morris, DG
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 258 (1-2): : 99 - 107
  • [10] Vacancies, vacancy aggregates and hardening in FeAl
    Morris, M.A.
    George, O.
    Morris, D.G.
    Materials Science and Engineering A, 1998, A258 (1-2): : 99 - 107
12345