| 000 | 04751nlm1a2200601 4500 | ||
|---|---|---|---|
| 001 | 664139 | ||
| 005 | 20231030041919.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\35323 | ||
| 035 | _aRU\TPU\network\35239 | ||
| 090 | _a664139 | ||
| 100 | _a20210329a2018 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aUS | ||
| 135 | _adrgn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aLuders Deformation in Weld Joints _fV. I. Danilov, A. N. Smirnov, V. V. Gorbatenko [et al.] |
|
| 203 |
_aText _celectronic |
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| 300 | _aTitle screen | ||
| 320 | _a[References: p. 92 (20 tit.)] | ||
| 330 | _aThe elastoplastic transition in welded low-carbon steel samples is considered. Two methods of manual arc welding of floating-electrode type are employed: a traditional steady arc; and pulsed welding with controlled heat consumption. In terms of the structural characteristics and mechanical properties of the welded metal, the methods are identical. In both cases, extended elastoplastic transition by the nucleation and propagation of Luders bands is observed. However, the underlying process is different. In the traditional steady arc, the Luders bands are formed in the applied metal initially as diffuse regions where the deformation is localized. These regions fill the seam and convert it to the plastically deformed state. The moving fronts of the bands are finally shaped in the thermal-influence zones and pass to the basic metal. The velocity and morphology of the fronts match those of fronts in uniform objects of the same steel. When using a pulsed arc, Luders bands appear some distance from the weld seam, at the clamps of the loading device. | ||
| 330 | _aUp to the thermal- influence zones, the velocity and morphology of the fronts correspond to those for the basic metal. At the fusion boundary, the front stops and forms the nucleus of a new band, which expands in the seam metal. This new band first transforms the applied metal to the deformed state and then creates a moving front in the opposite thermal-influence zone. The velocity of the front differs by an order of magnitude in the applied metal and the basic metal. The weld seam determines the nucleation of Luders bands. An explanation is offered for the different origins of the elastoplastic transition in the two welding methods. In traditional welding with a steady arc, the local long-range stress is considerably higher in the thermal-influence zones than in the basic metal. Therefore, the nucleation of Luders bands is a relaxational process in this case. In pulsed arc welding, the local long-range stress is higher in the basic metal, where the Luders bands appear. The results may be used in selecting the test conditions for power-system equipment. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 338 |
_bРоссийский фонд фундаментальных исследований _d17-08-00751a |
||
| 461 | _tSteel in Translation | ||
| 463 |
_tVol. 48, No. 2 _v[P. 87-92] _d2018 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _alow-carbon steel | |
| 610 | 1 | _alow-alloy steel | |
| 610 | 1 | _apulsed arc welding | |
| 610 | 1 | _aweld seam | |
| 610 | 1 | _aelastoplastic transition | |
| 610 | 1 | _aLuders bands | |
| 610 | 1 | _apower-system equipment | |
| 610 | 1 | _ahigh-pressure testing | |
| 610 | 1 | _aнизкоуглеродистые стали | |
| 610 | 1 | _aнизколегированные стали | |
| 610 | 1 | _aимпульсная сварка | |
| 610 | 1 | _aдуговая сварка | |
| 610 | 1 | _aсварные швы | |
| 610 | 1 | _aупругопластический переход | |
| 610 | 1 | _aэнергетическое оборудование | |
| 610 | 1 | _aвысокое давление | |
| 701 | 1 |
_aDanilov _bV. I. _cphysicist _cProfessor of Yurga technological Institute of Tomsk Polytechnic University, Doctor of physical and mathematical sciences _f1947 _gVladimir Ivanovich _2stltpush _3(RuTPU)RU\TPU\pers\34726 |
|
| 701 | 1 |
_aSmirnov _bA. N. _gAleksandr Nikolaevich |
|
| 701 | 1 |
_aGorbatenko _bV. V. _gVadim Vladimirovich |
|
| 701 | 1 |
_aOrlova _bD. V. _gDina Vladimirovna |
|
| 701 | 1 |
_aDanilova _bL. V. _gLidiya Vladimirovna |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bЮргинский технологический институт (филиал) _bОтделение промышленных технологий _h8376 _2stltpush _3(RuTPU)RU\TPU\col\24717 |
| 801 | 2 |
_aRU _b63413507 _c20210329 _gRCR |
|
| 856 | 4 | _uhttps://doi.org/10.3103/S0967091218020031 | |
| 942 | _cCF | ||