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

Orlov, D. V. LU orcid ; 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 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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author
; ; ; ; ; ; and
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Cold rolling, CpTi, SPD, Twist extrusion, UFG structure
host publication
Ultrafine Grained Materials III
editor
Zhu, Y.T. ; Langdon, T.G. ; Valiev, R.Z. ; Lee Semiatin, S. and et al, al
pages
6 pages
conference name
Ultrafine Grained Materials III, 2004
conference location
Charlotte, NC., United States
conference dates
2004-03-14 - 2004-03-18
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
2022-04-06 13:25:56
@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}},
  keywords     = {{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}},
}