Abstract
The paper presents the results of electron microscopy investigations of the defect structure evolution and the phase transformation of ultra fine-grained (UFG) Cu and Cu-Al-O alloy. The UFG Cu was prepared using the equal-channel angular (ECA) pressing method. The Cu-Al-O alloy was synthesized by mechanical milling and subsequent high temperature pressing. The initial grain size of the materials was 200 nm. The grain and dislocation structures were investigated qualitatively and quantitavely. In the Cu alloy, deformation twinning was revealed to occur in coarse grains together with slip deformation. The evolution of grain and dislocation micro structure in the presence or absence of solid solution and of dispersion hardening is analyzed, and differences are assessed.
| Original language | English |
|---|---|
| Pages (from-to) | 341-344 |
| Number of pages | 4 |
| Journal | Materials Science and Engineering A |
| Volume | 410-411 |
| DOIs | |
| Publication status | Published - 25 Nov 2005 |
Fingerprint
Keywords
- Deformation
- Dislocations
- Grains
- Microtwins
- Particles
- UFG Cu and Cu-Al-O alloy
ASJC Scopus subject areas
- Materials Science(all)
Cite this
Substructural and phase transformations during plastic deformations of materials obtained by intensive deformation. / Koneva, N. A.; Kozlov, E. V.; Ivanov, Yu F.; Popova, N. A.; Zhdanov, A. N.
In: Materials Science and Engineering A, Vol. 410-411, 25.11.2005, p. 341-344.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Substructural and phase transformations during plastic deformations of materials obtained by intensive deformation
AU - Koneva, N. A.
AU - Kozlov, E. V.
AU - Ivanov, Yu F.
AU - Popova, N. A.
AU - Zhdanov, A. N.
PY - 2005/11/25
Y1 - 2005/11/25
N2 - The paper presents the results of electron microscopy investigations of the defect structure evolution and the phase transformation of ultra fine-grained (UFG) Cu and Cu-Al-O alloy. The UFG Cu was prepared using the equal-channel angular (ECA) pressing method. The Cu-Al-O alloy was synthesized by mechanical milling and subsequent high temperature pressing. The initial grain size of the materials was 200 nm. The grain and dislocation structures were investigated qualitatively and quantitavely. In the Cu alloy, deformation twinning was revealed to occur in coarse grains together with slip deformation. The evolution of grain and dislocation micro structure in the presence or absence of solid solution and of dispersion hardening is analyzed, and differences are assessed.
AB - The paper presents the results of electron microscopy investigations of the defect structure evolution and the phase transformation of ultra fine-grained (UFG) Cu and Cu-Al-O alloy. The UFG Cu was prepared using the equal-channel angular (ECA) pressing method. The Cu-Al-O alloy was synthesized by mechanical milling and subsequent high temperature pressing. The initial grain size of the materials was 200 nm. The grain and dislocation structures were investigated qualitatively and quantitavely. In the Cu alloy, deformation twinning was revealed to occur in coarse grains together with slip deformation. The evolution of grain and dislocation micro structure in the presence or absence of solid solution and of dispersion hardening is analyzed, and differences are assessed.
KW - Deformation
KW - Dislocations
KW - Grains
KW - Microtwins
KW - Particles
KW - UFG Cu and Cu-Al-O alloy
UR - http://www.scopus.com/inward/record.url?scp=28844504674&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=28844504674&partnerID=8YFLogxK
U2 - 10.1016/j.msea.2005.08.114
DO - 10.1016/j.msea.2005.08.114
M3 - Article
VL - 410-411
SP - 341
EP - 344
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
SN - 0921-5093
ER -