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100 _a20200109a2019 k y0engy50 ba
101 0 _aeng
105 _ay z 100zy
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181 0 _ai
182 0 _ab
200 1 _aInfluence of Implantation on the Grain Size and Structural-Phase State of UFG-Titanium
_fA. Nikonenko [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 16 tit.]
330 _aTransmission electron microscopy (TEM) investigations were carried out to study the structural-phase state of ultra-fine grained (UFG) titanium with the average grain size of ~0.2 and 0.3 [mu]m, implanted with aluminium ions. MEVVA-V.RU ion source was used for ion implantation under room temperature, exposure time of 5.25 h, at ion implantation dosage of 1´1018 ion/cm{2]. UFG-titanium was obtained by means of multiple uniaxial compacting with multipass rolling in grooved rolls and further annealing at 573 K during 1 hour to reach the average grain size of ~0.2 [mu]m, and annealing at 623 K during 1 hour to reach the size of ~0.3 [mu]m. The study revealed that in alloy with the average grain size of ~0.2 [mu]m implantation results in a decrease in longitudinal grain size of [alpha]-Ti (from 1.9 to 0.7 [mu]m), however lateral size in its turn changed insignificantly (from 0.15 to 0.12 [mu]m). Grain anisotropy factor decreased by 3 times. In the alloy with the average grain size of ~0.3 [mu]m both longitudinal and lateral grain sizes decreased (from 0.33 to 0.19 [mu]m and from 2.1 to 0.8 [mu]m correspondingly). The studies also showed that implantation of titanium with aluminium has led to the formation of a number of phases, such as: [beta]-Ti, TiAl[3], Ti[3]Al, TiC and TiO[2]. Their places of concentration, sizes, distribution density and volume ratios were determined. TiAl[3] and Ti[3]Al phases were established to be ordered ones, formed within the conditions of ion exposure along the boundaries of [alpha]-Ti grains. Conducted calculations demonstrated that implantation contributed to the alloy strengthening, i.e. in alloy with the average grain size of ~0.2 [mu]m the value of yield stress increased by 2 times, and in the alloy with the average grain size of ~0.3 [mu]m-by 4 times.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 0 _0(RuTPU)RU\TPU\network\4816
_tAIP Conference Proceedings
463 0 _0(RuTPU)RU\TPU\network\31884
_tVol. 2167 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019 (AMHS'19)
_oProceedings of the International Conference, 1–5 October 2019, Tomsk, Russia
_fNational Research Tomsk Polytechnic University (TPU) ; Institute of Strength Physics and Materials Science SB RAS (Russia) ; eds. V. E. Panin ; S. G. Psakhie ; V. M. Fomin
_v[020243, 4 p.]
_d2019
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aимплантация
610 1 _aзерна
610 1 _aструктурно-фазовые состояния
610 1 _aтитан
610 1 _aионная имплантация
610 1 _aионы алюминия
610 1 _aпросвечивающая электронная микроскопия
610 1 _aанизотропия
610 1 _aупрочненные сплавы
610 1 _aпредел текучести
701 1 _aNikonenko
_bA.
_gAlisa
701 1 _aPopova
_bN.
_gNatalya
701 1 _aNikonenko
_bE. L.
_cphysicist
_cAssociate Professor of Tomsk Polytechnic University, candidate of physical and mathematical sciences
_f1962-
_gElena Leonidovna
_2stltpush
_3(RuTPU)RU\TPU\pers\35823
701 1 _aKalashnikov
_bM. P.
_cphysicist
_cEngineer of Tomsk Polytechnic University
_gMark Petrovich
_2stltpush
_3(RuTPU)RU\TPU\pers\33561
701 1 _aKurzina
_bI. A.
_cChemist
_cAssociate Professor of Tomsk Polytechnic University, Candidate of chemical sciences
_f1972-
_gIrina Aleksandrovna
_2stltpush
_3(RuTPU)RU\TPU\pers\32214
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИнженерная школа новых производственных технологий
_bОтделение материаловедения
_h7871
_2stltpush
_3(RuTPU)RU\TPU\col\23508
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bШкола базовой инженерной подготовки
_bОтделение русского языка
_h8030
_2stltpush
_3(RuTPU)RU\TPU\col\23517
801 2 _aRU
_b63413507
_c20200109
_gRCR
856 4 _uhttps://doi.org/10.1063/1.5132110
942 _cCF