Operation of imported rail on the East Siberian Railroad
- Авторлар: Dement’ev V.1, Feiler S.1, Boikov D.2, Kozyrev N.1, Polevoi E.2
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Мекемелер:
- Siberian State Industrial University
- OAO EVRAZ Zapadno Sibirskii Metallurgicheskii Kombinat (ZSMK)
- Шығарылым: Том 46, № 6 (2016)
- Беттер: 395-400
- Бөлім: Article
- URL: https://journals.rcsi.science/0967-0912/article/view/178772
- DOI: https://doi.org/10.3103/S0967091216060036
- ID: 178772
Дәйексөз келтіру
Аннотация
Japanese R65 rail is metallographically analyzed after operation in the East Siberian Railroad. Its chemical composition complies with Technical Specifications TU 0921-239-01124323–2007 for the steel used in the production of 350LDT rail. The macrostructure of the metal is of satisfactory quality. The tensile mechanical properties, hardness, and impact strength at +20°C determined on samples from the nonoperational chamfer of the rail head are consistent with Technical Specifications TU 0921-239-01124323–2007 for the steel used in the production of 350LDT rail. The impact strength at negative temperatures does meet the corresponding requirements. The content of nonmetallic inclusions is low. However, exogenous inclusions are present at unacceptable levels. The microstructure of the Japanese rail sample consists of sorbite and plate pearlite, whose dispersity declines on moving away from the surface. In operation of the rail, thin inclined cracks (depth 1.1 mm) form at the surface of the working chamfer in the rail head; in addition, lateral wear is considerable (up to 15 mm).
Негізгі сөздер
Авторлар туралы
V. Dement’ev
Siberian State Industrial University
Хат алмасуға жауапты Автор.
Email: mchmsis@mail.ru
Ресей, Novokuznetsk
S. Feiler
Siberian State Industrial University
Email: mchmsis@mail.ru
Ресей, Novokuznetsk
D. Boikov
OAO EVRAZ Zapadno Sibirskii Metallurgicheskii Kombinat (ZSMK)
Email: mchmsis@mail.ru
Ресей, Novokuznetsk
N. Kozyrev
Siberian State Industrial University
Email: mchmsis@mail.ru
Ресей, Novokuznetsk
E. Polevoi
OAO EVRAZ Zapadno Sibirskii Metallurgicheskii Kombinat (ZSMK)
Email: mchmsis@mail.ru
Ресей, Novokuznetsk