Microstructure evolution mechanism in adiabatic shear band in TA2

被引：0
作者：
Yang, Y [1 ]
Xiong, J
Yang, XY
机构：
[1] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China
[2] Univ Electrocommun, Dept Mech Engn & Intelligent Syst, Chofu, Tokyo 182, Japan
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2004年 / 14卷 / 04期
关键词：
adiabatic shear band; microstructure evolution; dynamic recrystallization;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The microstructure evolution mechanism in adiabatic shear band in commercial pure titanium (TA2) at high strain rates(gamma approximate to 10(5) - 10(6)/s) were studied. The nanosized recrystallized grains (about 50 nm in diameter) within the center of adiabatic shear band (ASB) were observed by means of transmission electronic microscope (TEM). A Rotational Dynamic Recrystallization (RDR) mechanism can explain the microstructure evolution (i. e. nanosized grains were formed within 5 - 10 mus) in ASB. Kinetics calculations indicate that the recrystallized small grains are formed during the deformation and don't undergo significant growth by grain boundary migration after deformation.
引用
收藏
页码：670 / 674
页数：5
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  • [1] DYNAMIC RECRYSTALLIZATION IN HIGH-STRAIN, HIGH-STRAIN-RATE PLASTIC-DEFORMATION OF COPPER
    ANDRADE, U
    MEYERS, MA
    VECCHIO, KS
    CHOKSHI, AH
    [J]. ACTA METALLURGICA ET MATERIALIA, 1994, 42 (09): : 3183 - 3195
  • [2] THE DEPENDENCE OF GRAIN-SIZE ON STRESS DURING DYNAMIC RECRYSTALLIZATION
    DERBY, B
    [J]. ACTA METALLURGICA ET MATERIALIA, 1991, 39 (05): : 955 - 962
  • [3] A model for microstructure evolution in adiabatic shear bands
    Hines, JA
    Vecchio, KS
    Ahzi, S
    [J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1998, 29 (01): : 191 - 203
  • [4] Recrystallization kinetics within adiabatic shear bands
    Hines, JA
    Vecchio, KS
    [J]. ACTA MATERIALIA, 1997, 45 (02) : 635 - 649
  • [5] Dynamic recrystallization induced by plastic deformation at high strain rate in a Monel alloy
    Li, Q
    Xu, YB
    Lai, ZH
    Shen, LT
    Bai, YL
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2000, 276 (1-2): : 250 - 256
  • [6] OBSERVATION OF AN ADIABATIC SHEAR BAND IN TITANIUM BY HIGH-VOLTAGE TRANSMISSION ELECTRON-MICROSCOPY
    MEYERS, MA
    PAK, HR
    [J]. ACTA METALLURGICA, 1986, 34 (12): : 2493 - 2499
  • [7] Microstructural evolution in adiabatic shear localization in stainless steel
    Meyers, MA
    Xu, YB
    Xue, Q
    Pérez-Prado, MT
    McNelley, TR
    [J]. ACTA MATERIALIA, 2003, 51 (05) : 1307 - 1325
  • [8] Shear localization in dynamic deformation of materials: microstructural evolution and self-organization
    Meyers, MA
    Nesterenko, VF
    LaSalvia, JC
    Xue, Q
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2001, 317 (1-2): : 204 - 225
  • [9] Microstructure of high-strain, high-strain-rate deformed tantalum
    Nemat-Nasser, S
    Isaacs, JB
    Liu, MQ
    [J]. ACTA MATERIALIA, 1998, 46 (04) : 1307 - 1325
  • [10] Microstructural evolution in adiabatic shear bands in Ta and Ta-W alloys
    Pérez-Prado, MT
    Hines, JA
    Vecchio, KS
    [J]. ACTA MATERIALIA, 2001, 49 (15) : 2905 - 2917
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