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101 | 0 | _aeng | |
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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 |
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203 |
_aText _celectronic |
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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 |
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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 |
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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 _3(RuTPU)RU\TPU\pers\31402 |
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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 (ТПУ) _bЮргинский технологический институт (филиал) (ЮТИ) _bКафедра технологии машиностроения (ТМС) _h356 _2stltpush _3(RuTPU)RU\TPU\col\18902 |
801 | 2 |
_aRU _b63413507 _c20180305 _gRCR |
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856 | 4 | _uhttps://doi.org/10.1016/j.mechmat.2017.11.011 | |
942 | _cCF |