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Microstructure, mechanical properties and anysotropy of pure ti processed by twist extrusion and cold rolling

Orlov, D. V. LU ; Stolyarov, V. V.; Salimgareyev, H. Sh; Soshnikova, E. P.; Reshetov, A. V.; Beygelziraer, Ya Ye; Synkov, S. G. and Varyukhin, V. N. (2004) Ultrafine Grained Materials III, 2004 In Ultrafine Grained Materials III p.457-462
Abstract

It is investigated UFG structure formation in CP Ti bulks processed by SPD (cold Twist Extrusion (TE), true strain e∼5.1, with the following Cold Rolling (CR), true strain e∼0.7). Evolution of microstructure and tensile mechanical properties in the CP Ti were investigated under room temperature. After the TE, in transversal section it is formed structure fragments with size less 1 μm. Strength increased on 80 %; elongation was 3.4 %. Following low-temperature annealing (300°C, 1 hour) leaded to increasing in both strength and ductility properties. In longitudinal section, specimens' strength properties increased slightly. Elongation was about 6 %. The following low-temperature annealing practically did not influence on the strength but... (More)

It is investigated UFG structure formation in CP Ti bulks processed by SPD (cold Twist Extrusion (TE), true strain e∼5.1, with the following Cold Rolling (CR), true strain e∼0.7). Evolution of microstructure and tensile mechanical properties in the CP Ti were investigated under room temperature. After the TE, in transversal section it is formed structure fragments with size less 1 μm. Strength increased on 80 %; elongation was 3.4 %. Following low-temperature annealing (300°C, 1 hour) leaded to increasing in both strength and ductility properties. In longitudinal section, specimens' strength properties increased slightly. Elongation was about 6 %. The following low-temperature annealing practically did not influence on the strength but improved elongation to 7.2 %. The additional CR leaded to forming severe deformed structure. Average size of fragments was 50-500 nm. It was observed elimination of anisotropy and equalization of strength. In both directions ultimate tensile strength became about 780-800 MPa and ductility properties remained the same as in the original.

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Please use this url to cite or link to this publication:
author
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Cold rolling, CpTi, SPD, Twist extrusion, UFG structure
in
Ultrafine Grained Materials III
editor
Zhu, Y.T.; Langdon, T.G.; Valiev, R.Z.; Lee Semiatin, S.; et al, al; ; ; ; and
pages
6 pages
conference name
Ultrafine Grained Materials III, 2004
external identifiers
  • scopus:3042822423
ISBN
0873395719
language
English
LU publication?
no
id
ba2c9f46-639e-49c6-b8bf-31fc0aba9dfb
date added to LUP
2016-06-20 15:45:56
date last changed
2017-04-20 12:45:11
@inproceedings{ba2c9f46-639e-49c6-b8bf-31fc0aba9dfb,
  abstract     = {<p>It is investigated UFG structure formation in CP Ti bulks processed by SPD (cold Twist Extrusion (TE), true strain e∼5.1, with the following Cold Rolling (CR), true strain e∼0.7). Evolution of microstructure and tensile mechanical properties in the CP Ti were investigated under room temperature. After the TE, in transversal section it is formed structure fragments with size less 1 μm. Strength increased on 80 %; elongation was 3.4 %. Following low-temperature annealing (300°C, 1 hour) leaded to increasing in both strength and ductility properties. In longitudinal section, specimens' strength properties increased slightly. Elongation was about 6 %. The following low-temperature annealing practically did not influence on the strength but improved elongation to 7.2 %. The additional CR leaded to forming severe deformed structure. Average size of fragments was 50-500 nm. It was observed elimination of anisotropy and equalization of strength. In both directions ultimate tensile strength became about 780-800 MPa and ductility properties remained the same as in the original.</p>},
  author       = {Orlov, D. V. and Stolyarov, V. V. and Salimgareyev, H. Sh and Soshnikova, E. P. and Reshetov, A. V. and Beygelziraer, Ya Ye and Synkov, S. G. and Varyukhin, V. N.},
  booktitle    = {Ultrafine Grained Materials III},
  editor       = {Zhu, Y.T. and Langdon, T.G. and Valiev, R.Z. and Lee Semiatin, S. and et al, al},
  isbn         = {0873395719},
  keyword      = {Cold rolling,CpTi,SPD,Twist extrusion,UFG structure},
  language     = {eng},
  pages        = {457--462},
  title        = {Microstructure, mechanical properties and anysotropy of pure ti processed by twist extrusion and cold rolling},
  year         = {2004},
}