Low temperature flow behavior of B2 intermetallic phase in Ti-Al-Nb system

被引：9
|
作者：
Shankar, Hari
Prasad, N. Eswara
Singh, A. K.
Nandy, T. K. [1 ]
机构：
[1] Def Met Res Lab, Hyderabad 500058, Andhra Pradesh, India
[2] Indian Inst Technol, Kanpur 208016, Uttar Pradesh, India
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2006年 / 424卷 / 1-2期
关键词：
intermetallic; Ti-Al-Nb system; Peierl;
D O I：
10.1016/j.msea.2006.02.048
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Low temperature flow behavior of polycrystalline B2 intermetallic in Ti-Al-Nb system has been studied in a range of temperature (77-298 K) and strain rate (10(-4) to 10(-3) s(-1)). To assess the rate limiting mechanisms, activation volume and energy have been determined. Relatively low values of activation volume (20-50b(3)) and activation energy (0.2 mu b(3)) suggest that a short-range obstacle that is Peierls barrier restricts the dislocation movement. Work hardening behavior of the intermetallic is also studied and contrasted with that of other B2 intermetallics. The intermetallic C exhibits extremely low rates of work hardening that is attributed to localized and planar flow. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：71 / 76
页数：6
相关论文
共 50 条
  • [31] A new intermetallic compound in TiAl plus Nb composition area of the Ti-Al-Nb ternary system
    Chen, GL
    Wang, JG
    Ni, XD
    Lin, JP
    Wang, YL
    INTERMETALLICS, 2005, 13 (3-4) : 329 - 336
  • [32] Thermodynamic calculation of the α/β and α/γ phase equilibria in the Ti-Al-Nb ternary system
    Li, Juntao
    Jiang, Min
    Hao, Shiming
    Li, Shiqiong
    Zhong, Zengyong
    Jinshu Xuebao/Acta Metallurgica Sinica, 2001, 37 (10): : 1064 - 1068
  • [33] Thermodynamic calculation of the α/β and α/γ phase equilibria in the Ti-Al-Nb ternary system
    Li, JT
    Jiang, M
    Hao, SM
    Li, SQ
    Zhong, ZY
    ACTA METALLURGICA SINICA, 2001, 37 (10) : 1064 - 1068
  • [34] Tensile properties and creep behavior of a new Ti-Al-Nb intermetallic alloy with an O+α2 microstructure
    Feng Tang
    Masuo Hagiwara
    Metallurgical and Materials Transactions A, 2003, 34 : 633 - 643
  • [35] Tensile properties and creep behavior of a new Ti-Al-Nb intermetallic alloy with an O+α2 microstructure
    Tang, F
    Hagiwara, M
    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2003, 34 (03): : 633 - 643
  • [36] High temperature oxidation behavior and strength of Ti-Al-Nb ternary alloys
    Ding, XF
    Tan, Y
    Shen, Y
    Wang, FG
    Yang, JM
    ADVANCES IN FRACTURE AND STRENGTH, PTS 1- 4, 2005, 297-300 : 403 - 408
  • [37] Investigation of the intermetallic β'(B2)-phase in the Co–Al–Si system
    N. V. Kazantseva
    I. V. Ezhov
    D. I. Davydov
    N. I. Vinogradova
    P. B. Terent’ev
    Physics of Metals and Metallography, 2017, 118 : 249 - 255
  • [38] Evolution of intermetallic compounds in Ti-Al-Nb system by the action of mechanoactivation and spark plasma sintering
    Kozhakhmetov, Yernat
    Skakov, Mazhyn
    Wieleba, Wojciech
    Sherzod, Kurbanbekov
    Mukhamedova, Nuriya
    AIMS MATERIALS SCIENCE, 2020, 7 (02) : 182 - 191
  • [39] Kinetic modeling of the γ phase in Ti-Al-Nb alloys
    Berglund, Ida S.
    Bryan, Zachary L.
    Manuel, Michele V.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 729 : 688 - 694
  • [40] Phase selection in undercooled Ti-Al-Nb melts
    Shuleshova, O.
    Holland-Moritz, D.
    Lindenkreuz, H-G
    Loeser, W.
    Buechner, B.
    13TH INTERNATIONAL CONFERENCE ON RAPIDLY QUENCHED AND METASTABLE MATERIALS, 2009, 144
12345