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001 649926
005 20231030040928.0
035 _a(RuTPU)RU\TPU\network\15096
035 _aRU\TPU\network\15095
090 _a649926
100 _a20160831a2016 k y0engy50 ba
101 0 _aeng
105 _ay z 100zy
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aThe Investigation of Structure Heterogeneous Joint Welds in Pipelines
_fL. L. Lyubimova [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 9 tit.]
330 _aWelding joints of dissimilar steels don’t withstand design life. One of the important causes of premature destructions can be the acceleration of steel structural degradation due to cyclic mechanical and thermal gradients. Two zones of tube from steel 12H18N9T, exhibiting the structural instability at early stages of the decomposition of a supersaturated solid austenite solution, were subjected to investigation. Methods of x-ray spectral and structure analysis, micro hardnessmetry were applied for the research. Made the following conclusions, inside and outside tube wall surfaces of hazardous zones in welding joint have different technological and resource characteristics. The microhardness very sensitive to changes of metal structure and can be regarded as integral characteristic of strength and ductility. The welding processes are responsible for the further fibering of tube wall structure, they impact to the characteristics of hot-resistance and long-term strength due to development of ring cracks in the welding joint of pipeline. The monitoring of microhardness and structural phase conversions can be used for control by changes of mechanical properties in result of post welding and reductive heat treatment of welding joints.
461 0 _0(RuTPU)RU\TPU\network\4526
_tMATEC Web of Conferences
463 0 _0(RuTPU)RU\TPU\network\14977
_tVol. 72 : Heat and Mass Transfer in the System of Thermal Modes of Energy – Technical and Technological Equipment (HMTTSC-2016)
_oApril 19-21, 2016, Tomsk, Russia
_o[proceedings]
_fNational Research Tomsk Polytechnic University (TPU) ; eds. G. V. Kuznetsov [et al.]
_v[01059, 6 p.]
_d2016
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aструктуры
610 1 _aсварные швы
610 1 _aтрубопроводы
610 1 _aмикротвердость
610 1 _aтрещины
610 1 _aсварные соединения
701 1 _aLyubimova
_bL. L.
_cspecialist in the field of thermal engineering
_cAssociate Professor of Tomsk Polytechnic University, candidate of technical sciences
_f1947-
_gLyudmila Leonidovna
_2stltpush
_3(RuTPU)RU\TPU\pers\36593
701 1 _aFisenko
_bR. N.
_cspecialist in the field of thermal engineering
_cengineer of Tomsk Polytechnic University
_f1976-
_gRoman Nikolaevich
_2stltpush
_3(RuTPU)RU\TPU\pers\37176
701 1 _aBreus
_bS.
_gSergei
701 1 _aTabakaev
_bR. B.
_cspecialist in the field of heat and power engineering
_cEngineer of Tomsk Polytechnic University, Postgraduate
_f1986-
_gRoman Borisovich
_2stltpush
_3(RuTPU)RU\TPU\pers\32988
712 0 2 _aНациональный исследовательский Томский политехнический университет (ТПУ)
_bЭнергетический институт (ЭНИН)
_bКафедра парогенераторостроения и парогенераторных установок (ПГС и ПГУ)
_h120
_2stltpush
_3(RuTPU)RU\TPU\col\18681
801 2 _aRU
_b63413507
_c20170120
_gRCR
856 4 _uhttp://dx.doi.org/10.1051/matecconf/20167201059
856 4 _uhttp://earchive.tpu.ru/handle/11683/33454
942 _cCF