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|---|---|---|---|
| 001 | 656294 | ||
| 005 | 20231030041421.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\22735 | ||
| 090 | _a656294 | ||
| 100 | _a20171107a2017 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aComparative study of shock-wave hardening and substructure evolution of 304L and Hadfield steels irradiated with a nanosecond relativistic high-current electron beam _fS. F. Gnyusov [et al.] |
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| 203 |
_aText _celectronic |
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| 300 | _aTitle screen | ||
| 320 | _a[References: р. 243-244 (63 tit.)] | ||
| 330 | _aWe present the results of a comparative study of the shock-wave hardening regularities and mechanisms revealed for bulk (thickness h = 6 and 9.3 mm) targets made of austenitic 304L stainless steel and Hadfield steel. A high-current relativistic electron beam (45 ns, 1.35 MeV, 34 GW/cm2) produced by the SINUS-7 accelerator was used for generation of a shock wave. It is revealed by 2D-computer simulation for type 304 steel that the direct ablation of the target material leads to generation of shock wave with duration of ~0.1 [mu]s and amplitude of ~20 GPa, and the strain rate during its direct propagation and reflection from the free rear surface decreases from ~2 down to ~0.4 [mu]s-1. It is found experimentally that in the absence of a rear spall (h = 9.3 mm) the shock-wave loading of both steels leads to formation of three hardened layers: a front layer with a maximum microhardness at a depth of 0.5-1 mm from the bottom of ablation hole, which is in a reasonable agreement with the predictions of the heat-transfer calculations, as well as intermediate and rear-side layers. In case of 304L stainless steel, the depth distributions of microhardness and fraction of twinned grains are consistent with each other, while in the Hadfield steel, the correlation is within the front and intermediate hardened layers only. It is shown by microstructural characterization and analysis of hardening mechanisms that in the case of 304L stainless steel, both front and rear-side hardening are significantly associated with the formation of new intra-phase boundaries by deformation twinning. In the Hadfield steel, unlike the 304L stainless steel, the unusual rear-side hardening is mainly due to increasing the dislocation density under submicrosecond single cycle of compression followed by tension with peak stress of ~3 GPa. | ||
| 461 | _tJournal of Alloys and Compounds | ||
| 463 |
_tVol. 714 _v[P. 232–244] _d2017 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _ashock-wave loading | |
| 610 | 1 | _ahigh-current electron beam | |
| 610 | 1 | _a304L stainless steel | |
| 610 | 1 | _aHadfield steel | |
| 610 | 1 | _ashock hardening | |
| 610 | 1 | _adeformation twinning | |
| 610 | 1 | _aнержавеющие стали | |
| 610 | 1 | _aударопрочность | |
| 610 | 1 | _aударно-волновое воздействие | |
| 610 | 1 | _aсильноточные электронные пучки | |
| 610 | 1 | _aсталь Гадфильда | |
| 610 | 1 | _aдеформации | |
| 701 | 1 |
_aGnyusov _bS. F. _cspecialist in the field of mechanical engineering _cProfessor of Tomsk Polytechnic University, Doctor of technical sciences _f1960- _gSergey Fedorovich _2stltpush _3(RuTPU)RU\TPU\pers\31403 |
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| 701 | 1 |
_aRotshteyn _bV. P. _gVladimir Petrovich |
|
| 701 | 1 |
_aMayer _bA. E. _gAlexsander Evgenjevich |
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| 701 | 1 |
_aAstafurova _bE. G. _gElena Gennadjevna |
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| 701 | 1 |
_aRostov _bV. V. _gVladislav Vladimirovich |
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| 701 | 1 |
_aGunin _bA. V. _gAleksandr Vladimirovich |
|
| 701 | 1 |
_aMayer _bG. G. _gGalina Gennadjevna |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет (ТПУ) _bФизико-технический институт (ФТИ) _bКафедра экспериментальной физики (ЭФ) _h7596 _2stltpush _3(RuTPU)RU\TPU\col\21255 |
| 801 | 2 |
_aRU _b63413507 _c20171227 _gRCR |
|
| 856 | 4 | _uhttps://doi.org/10.1016/j.jallcom.2017.04.219 | |
| 942 | _cCF | ||