Abstract
The results from quantitative investigations into the structural phase state of finely dispersed titanium before and after implantation with aluminum ions are presented. Two types of α-Ti grains differing by phase composition, defect structure, and size are distinguished in the structure: fine grains in the range of 0.1-0.5 μm and coarse grains in the range of 0.5-5 μm. The presence of two types of TiO2 particles in the material, i.e., rounded particles found at dislocations in the bulk of the α-Ti grains and lamellar particles found only inside coarse α-Ti grains, is established. The formation of the Ti3Al phase is observed in the form of lamellar inclusions along the grain boundaries and rounded particles in triple joints. It is found that the particles of the TiAl3 phase are isolated with a smaller volume fraction than the Ti3Al phase; they are localized along the boundaries of coarse grains of the titanium matrix. It is established that the granular state and defect structure of the material change substantially after ion irradiation; i.e., the dislocation density and the fields of internal stresses in fine grains grow considerably, relative to the initial state of titanium.
| Original language | English |
|---|---|
| Pages (from-to) | 1238-1245 |
| Number of pages | 8 |
| Journal | Bulletin of the Russian Academy of Sciences: Physics |
| Volume | 76 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 1 Nov 2012 |
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- Physics and Astronomy(all)
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Modifying the structural phase state of fine-grained titanium under conditions of ion irradiation. / Kurzina, I. A.; Kozlov, E. V.; Popova, N. A.; Kalashnikov, Mark Petrovich; Nikonenko, E. L.; Savkin, K. P.; Oks, E. M.; Sharkeev, Yu P.
In: Bulletin of the Russian Academy of Sciences: Physics, Vol. 76, No. 11, 01.11.2012, p. 1238-1245.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Modifying the structural phase state of fine-grained titanium under conditions of ion irradiation
AU - Kurzina, I. A.
AU - Kozlov, E. V.
AU - Popova, N. A.
AU - Kalashnikov, Mark Petrovich
AU - Nikonenko, E. L.
AU - Savkin, K. P.
AU - Oks, E. M.
AU - Sharkeev, Yu P.
PY - 2012/11/1
Y1 - 2012/11/1
N2 - The results from quantitative investigations into the structural phase state of finely dispersed titanium before and after implantation with aluminum ions are presented. Two types of α-Ti grains differing by phase composition, defect structure, and size are distinguished in the structure: fine grains in the range of 0.1-0.5 μm and coarse grains in the range of 0.5-5 μm. The presence of two types of TiO2 particles in the material, i.e., rounded particles found at dislocations in the bulk of the α-Ti grains and lamellar particles found only inside coarse α-Ti grains, is established. The formation of the Ti3Al phase is observed in the form of lamellar inclusions along the grain boundaries and rounded particles in triple joints. It is found that the particles of the TiAl3 phase are isolated with a smaller volume fraction than the Ti3Al phase; they are localized along the boundaries of coarse grains of the titanium matrix. It is established that the granular state and defect structure of the material change substantially after ion irradiation; i.e., the dislocation density and the fields of internal stresses in fine grains grow considerably, relative to the initial state of titanium.
AB - The results from quantitative investigations into the structural phase state of finely dispersed titanium before and after implantation with aluminum ions are presented. Two types of α-Ti grains differing by phase composition, defect structure, and size are distinguished in the structure: fine grains in the range of 0.1-0.5 μm and coarse grains in the range of 0.5-5 μm. The presence of two types of TiO2 particles in the material, i.e., rounded particles found at dislocations in the bulk of the α-Ti grains and lamellar particles found only inside coarse α-Ti grains, is established. The formation of the Ti3Al phase is observed in the form of lamellar inclusions along the grain boundaries and rounded particles in triple joints. It is found that the particles of the TiAl3 phase are isolated with a smaller volume fraction than the Ti3Al phase; they are localized along the boundaries of coarse grains of the titanium matrix. It is established that the granular state and defect structure of the material change substantially after ion irradiation; i.e., the dislocation density and the fields of internal stresses in fine grains grow considerably, relative to the initial state of titanium.
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U2 - 10.3103/S1062873812110135
DO - 10.3103/S1062873812110135
M3 - Article
VL - 76
SP - 1238
EP - 1245
JO - Bulletin of the Russian Academy of Sciences: Physics
JF - Bulletin of the Russian Academy of Sciences: Physics
SN - 1062-8738
IS - 11
ER -