Microstructure and properties of Ti rods produced by multi-step SPD

被引：20
作者：
Latysh, VV
Semenova, IP
Salimgareeva, GH
Kandarov, IV
Zhu, YT
Lowe, TC
Valiev, RZ
机构：
[1] Innovat Sci Tech Ctr Iskra, Ufa 450000, Russia
[2] Ufa State Aviat Tech Univ, Inst Phys Adv Mat, Ufa 450000, Russia
[3] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
来源：
NANOMATERIALS BY SEVERE PLASTIC DEFORMATION | 2006年 / 503-504卷
关键词：
titanium; ultrufine-grained structure; severe plastic deformation; preliminary strain treatment;
D O I：
10.4028/www.scientific.net/MSF.503-504.763
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This paper studies the effect of combined SPD treatment on microstructure and mechanical properties of semi-products out of CP Ti. The combined processing, consisting of equal-channel angular pressing and further thermomechanical treatment, produced ultrafine-grained rods out of Grade 2 CP Ti with a diameter of 6.5 mm and a length of up to 1 m. It was established that the formation of homogeneous ultrafine-grained structure in Ti rod with alpha-grain size of about 100 nm allowed to enhance yield stress by 200% in comparison with initial annealed state.
引用
收藏
页码：763 / 768
页数：6
相关论文
共 12 条
[1]  
[Anonymous], 2002, Patent, Patent No. [6,399215(US), 6399215]
[2]  
BRUNETTE DM, 2001, SPRINGER, P1019
[3]  
LATYSH VV, 2005, ULTRAFINE GRAINED MA, V4
[4]   Enhanced superplasticity in a Ti-6Al-4V alloy processed by severe plastic deformation [J].
Sergueeva, AV ;
Stolyarov, VV ;
Valiev, RZ ;
Mukherjeeb, AK .
SCRIPTA MATERIALIA, 2000, 43 (09) :819-824
[5]   Advanced mechanical properties of pure titanium with ultrafine grained structure [J].
Sergueeva, AV ;
Stolyarov, VV ;
Valiev, RZ ;
Mukherjee, AK .
SCRIPTA MATERIALIA, 2001, 45 (07) :747-752
[6]   Microstructure and properties of pure Ti processed by ECAP and cold extrusion [J].
Stolyarov, VV ;
Zhu, YT ;
Lowe, TC ;
Valiev, RZ .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2001, 303 (1-2) :82-89
[7]   Influence of ECAP routes on the microstructure and properties of pure Ti [J].
Stolyarov, VV ;
Zhu, YT ;
Alexandrov, IV ;
Lowe, TC ;
Valiev, RZ .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2001, 299 (1-2) :59-67
[8]   Nanostructuring of metals by severe plastic deformation for advanced properties [J].
Valiev, R .
NATURE MATERIALS, 2004, 3 (08) :511-516
[9]   Bulk nanostructured materials from severe plastic deformation [J].
Valiev, RZ ;
Islamgaliev, RK ;
Alexandrov, IV .
PROGRESS IN MATERIALS SCIENCE, 2000, 45 (02) :103-189
[10]  
VALIEV RZ, 2000, 9 INT C TIT 99, V3, P1569
12