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100 _a20221130a2022 k y0engy50 ba
101 0 _aeng
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aIn situ study of phase transformations in electron beam additive manufactured Ti-6Al-4 V titanium alloy by high temperature synchrotron X-ray diffraction and TEM
_fO. B. Perevalova, M. S. Syrtanov
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 37 tit.]
330 _aThe microstructure and phase composition of the EBAM Ti-6Al-4 V alloy samples were studied by the methods of in situ high temperature synchrotron X-ray diffraction and transmission electron microscopy (TEM) during heating from room temperature to a temperature of 1373 K. In the initial state, the main phase of the EBAM Ti-6Al-4 V alloy the samples was the α phase, the second phases were β + α″. The volume fraction of the β phase does not exceed 5%, α″ - 3%. It was found that the new α″ phase was formed at the temperature of 1073 K due to the phase transition α→α″. The α″ phase volume fraction increased as the heating temperature increased to the temperature of 1223 K and then decreased with a further increase of the temperature due to the α″→β phase transition. The dependences of the lattice parameters of the α, β and α″ phases on the heating temperature were revealed. It was established that the crystal lattice of the α phase was distorted during heating. The α phase passed into the unstable state. An increase of the c/a parameters ratio was accompanied by the formation of the α″ and β phases.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tJournal of Alloys and Compounds
463 _tVol. 917
_v[165463, 11 p.]
_d2022
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aelectron beam additive manufacturing
610 1 _aTi-6Al-4 V
610 1 _aphase composition
610 1 _amicrostructure
610 1 _aphase transformation α→α″
610 1 _aэлектронно-лучевое аддитивное производство
610 1 _aфазовый состав
610 1 _aмикроструктуры
610 1 _aфазовые превращения
700 1 _aPerevalova
_bO. B.
_gOlga Borisovna
701 1 _aSyrtanov
_bM. S.
_cphysicist
_cAssociate Professor, Researcher of Tomsk Polytechnic University, Candidate of Technical Sciences
_f1990-
_gMaksim Sergeevich
_2stltpush
_3(RuTPU)RU\TPU\pers\34764
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИнженерная школа ядерных технологий
_bОтделение экспериментальной физики
_h7865
_2stltpush
_3(RuTPU)RU\TPU\col\23549
801 2 _aRU
_b63413507
_c20221130
_gRCR
856 4 _uhttps://doi.org/10.1016/j.jallcom.2022.165463
942 _cCF