Evolution of dislocation density and character in hot rolled titanium determined by X-ray diffraction

被引:55
作者
Dragomir, IC
Li, DS
Castello-Branco, GA
Garmestani, H
Snyder, RL
Ribarik, G
Ungar, T
机构
[1] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA
[2] Florida State Univ, Dept Mech Engn, Tallahassee, FL 32310 USA
[3] CSF RJ, Ctr Fed Educ Tecnol, BR-22710 Rio De Janeiro, Brazil
[4] Eotvos Univ Budapest, Dept Gen Phys, H-1518 Budapest, Hungary
关键词
alpha-titanium; X-ray line broadening; dislocations; burgers vector population; texture;
D O I
10.1016/j.matchar.2005.03.002
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
X-ray Peak Profile Analysis was employed to determine the evolution dislocation density and dislocations type in hot rolled commercially pure titanium specimens. It was found that (a) dislocation type is dominating the deformation mechanism at all rolling reduction levels studied here. A good agreement was found between the texture evolution and changes in dislocation slip system activity during the deformation process. (c) 2005 Elsevier Inc. All rights reserved.
引用
收藏
页码:66 / 74
页数:9
相关论文
共 25 条
[1]  
[Anonymous], XRAY NEUTRON DIFFRAC
[2]   Application of white x-ray microbeams for the analysis of dislocation structures [J].
Barabash, RI ;
Ice, GE ;
Larson, BC ;
Yang, WG .
REVIEW OF SCIENTIFIC INSTRUMENTS, 2002, 73 (03) :1652-1654
[3]   Contrast factors of dislocations in the hexagonal crystal system [J].
Dragomir, IC ;
Ungár, T .
JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2002, 35 :556-564
[4]   X-ray line-broadening analysis of deformation mechanisms during rolling of commercial-purity titanium [J].
Glavicic, MG ;
Salem, AA ;
Semiatin, SL .
ACTA MATERIALIA, 2004, 52 (03) :647-655
[5]   Analysis of asymmetric broadening of X-ray diffraction peak profiles caused by randomly distributed polarized dislocation dipoles and dislocation walls [J].
Groma, I ;
Monnet, G .
JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2002, 35 :589-593
[6]   Dislocation structure and crystallite size distribution in plastically deformed Ti determined by X-ray peak profile analysis [J].
Gubicza, J ;
Dragomir, IC ;
Ribárik, G ;
Baik, SC ;
Zhu, YT ;
Vailev, RZ ;
Ungár, T .
ZEITSCHRIFT FUR METALLKUNDE, 2003, 94 (11) :1185-1188
[7]   STRESS-STATE DEPENDENCE OF SLIP IN TITANIUM-6A1-4V AND OTHER HCP METALS [J].
JONES, IP ;
HUTCHINSON, WB .
ACTA METALLURGICA, 1981, 29 (06) :951-968
[8]   Calculation of diffraction line profiles from specimens with dislocations. A comparison of analytical models with computer simulations [J].
Kamminga, JD ;
Delhez, R .
JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2000, 33 :1122-1127
[9]   X-RAY-DIFFRACTION LINE BROADENING DUE TO DISLOCATIONS IN NON-CUBIC MATERIALS .1. GENERAL-CONSIDERATIONS AND THE CASE OF ELASTIC ISOTROPY APPLIED TO HEXAGONAL CRYSTALS [J].
KLIMANEK, P ;
KUZEL, R .
JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1988, 21 :59-66
[10]   X-RAY-DIFFRACTION LINE BROADENING DUE TO DISLOCATIONS IN NON-CUBIC MATERIALS .2. THE CASE OF ELASTIC-ANISOTROPY APPLIED TO HEXAGONAL CRYSTALS [J].
KUZEL, R ;
KLIMANEK, P .
JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1988, 21 :363-368