Abstract
Grain refinement is an important prerequisite for advent of superplasticity. In particular, as the grain size is smaller, the superplasticity appears at higher strain rates and lower temperatures. Severe plastic deformation (SPD) is a useful process for achieving significant grain refinement. This presentation shows that applicability of the SPD process is enhanced when it is operated under high pressure through high-pressure torsion (HPT) and high-pressure sliding (HPS). It is demonstrated that commercially available conventional alloys but less ductile alloys such as Mg alloys, age-hardenable high-strength Al alloys (A2024, A7075) and Ti alloys become superplastic after processing by HPT or HPS.
| Original language | English |
|---|---|
| Title of host publication | Superplasticity in Advanced Materials, ICSAM 2015 |
| Editors | Goroh Itoh, Junya Kobayashi, Koichi Kitazono, Eiichi Sato, Yoshimasa Takayama, Takaomi Itoi, Koji Morita |
| Publisher | Trans Tech Publications Ltd |
| Pages | 287-293 |
| Number of pages | 7 |
| ISBN (Print) | 9783038356721 |
| DOIs | |
| Publication status | Published - Jan 1 2016 |
| Event | 12th International Conference on Superplasticity in Advanced Materials, ICSAM 2015 - Tokyo, Japan Duration: Sep 7 2015 → Sep 11 2015 |
Publication series
| Name | Materials Science Forum |
|---|---|
| Volume | 838-839 |
| ISSN (Print) | 0255-5476 |
Other
| Other | 12th International Conference on Superplasticity in Advanced Materials, ICSAM 2015 |
|---|---|
| Country | Japan |
| City | Tokyo |
| Period | 9/7/15 → 9/11/15 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
Cite this
Severe plastic deformation under high pressure for production of superplastic materials. / Horita, Zenji.
Superplasticity in Advanced Materials, ICSAM 2015. ed. / Goroh Itoh; Junya Kobayashi; Koichi Kitazono; Eiichi Sato; Yoshimasa Takayama; Takaomi Itoi; Koji Morita. Trans Tech Publications Ltd, 2016. p. 287-293 (Materials Science Forum; Vol. 838-839).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Severe plastic deformation under high pressure for production of superplastic materials
AU - Horita, Zenji
PY - 2016/1/1
Y1 - 2016/1/1
N2 - Grain refinement is an important prerequisite for advent of superplasticity. In particular, as the grain size is smaller, the superplasticity appears at higher strain rates and lower temperatures. Severe plastic deformation (SPD) is a useful process for achieving significant grain refinement. This presentation shows that applicability of the SPD process is enhanced when it is operated under high pressure through high-pressure torsion (HPT) and high-pressure sliding (HPS). It is demonstrated that commercially available conventional alloys but less ductile alloys such as Mg alloys, age-hardenable high-strength Al alloys (A2024, A7075) and Ti alloys become superplastic after processing by HPT or HPS.
AB - Grain refinement is an important prerequisite for advent of superplasticity. In particular, as the grain size is smaller, the superplasticity appears at higher strain rates and lower temperatures. Severe plastic deformation (SPD) is a useful process for achieving significant grain refinement. This presentation shows that applicability of the SPD process is enhanced when it is operated under high pressure through high-pressure torsion (HPT) and high-pressure sliding (HPS). It is demonstrated that commercially available conventional alloys but less ductile alloys such as Mg alloys, age-hardenable high-strength Al alloys (A2024, A7075) and Ti alloys become superplastic after processing by HPT or HPS.
UR - http://www.scopus.com/inward/record.url?scp=84958093658&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84958093658&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/MSF.838-839.287
DO - 10.4028/www.scientific.net/MSF.838-839.287
M3 - Conference contribution
AN - SCOPUS:84958093658
SN - 9783038356721
T3 - Materials Science Forum
SP - 287
EP - 293
BT - Superplasticity in Advanced Materials, ICSAM 2015
A2 - Itoh, Goroh
A2 - Kobayashi, Junya
A2 - Kitazono, Koichi
A2 - Sato, Eiichi
A2 - Takayama, Yoshimasa
A2 - Itoi, Takaomi
A2 - Morita, Koji
PB - Trans Tech Publications Ltd
ER -