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200 1 _aSelf-organization of plastic deformation and deformation relief in FCC single crystals
_fE. A. Alferova (Alfyorova), D. V. Lychagin
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 47 tit.]
330 _aThe purpose of this article is to present patterns for various types of deformation relief formed by octahedral slip, ways of its self-organization and its ability for stress relaxation. The article shows quantitatively that with the scale-up of the structural element of the deformation relief in the sequence of “shear traces, mesobands, macrobands, folds”, the deformation becomes more inhomogeneous at their joints. At the same time, self-organization of deformation within the area occupied by one type of relief occurs in such a way that inhomogeneity of deformation within the occupied area decreases, and deformation in any local area tends to the average deformation on the face. The research shows that deformation relief formed on the crystal surface by octahedral slip releases stress at the meso and macro levels. It is shown that self-organization of shear traces into pack slip band, meso and macro bands reduces local stresses at the place of their formation as compared to the zone occupied by the shear traces. Estimated calculations showed that the difference in the rate of local strain between different types of structural elements of relief increased by about 40%. It is shown that the development of the quasiperiodic profile of the crystal surface upon plastic deformation occurs in terms of the Asaro-Tiller-Grinfeld instability. The critical wavelengths of surface perturbations ?c are calculated for structural elements of the various relief types.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tMechanics of Materials
463 _tVol. 117
_v[P. 202–213]
_d2018
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aдеформация
610 1 _aнестабильность
610 1 _aрелаксация
610 1 _aпластичность
700 1 _aAlferova (Alfyorova)
_bE. A.
_cspecialist in the field of mechanical engineering
_cassociate Professor Yurginsky technological Institute (branch) of Tomsk Polytechnic University, candidate of physical and mathematical Sciences
_f1982-
_gEkaterina Aleksandrovna
_2stltpush
_3(RuTPU)RU\TPU\pers\34576
701 1 _aLychagin
_bD. V.
_cspecialist in the field of mechanical engineering
_cProfessor of Yurga technological Institute of Tomsk Polytechnic University, Doctor of physical and mathematical sciences
_f1957-
_gDmitry Vasilievich
_2stltpush
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712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИнженерная школа новых производственных технологий
_bОтделение материаловедения
_h7871
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_3(RuTPU)RU\TPU\col\23508
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bЮргинский технологический институт (филиал) (ЮТИ)
_bКафедра технологии машиностроения (ТМС)
_h356
_2stltpush
_3(RuTPU)RU\TPU\col\18902
801 2 _aRU
_b63413507
_c20180305
_gRCR
856 4 _uhttps://doi.org/10.1016/j.mechmat.2017.11.011
942 _cCF