Dislocation substructures and internal stress fields in bulk- and differentially quenched rails

V. E. Gromov, K. V. Volkov, A. M. Glezer, Yu F. Ivanov, K. V. Morozov, K. V. Alsaraeva, S. V. Konovalov

Результат исследований: Материалы для журналаСтатья

Аннотация

A layer-by-layer analysis of rails bulk-hardened in oil and differentially hardened in a variety of regimes is performed by means of transmission electron microscopy. Quantitative parameters of dislocation substructures and internal stress fields, and their dependences on the distance from the tread contact surface are established. It is shown that the most dangerous stress concentrators are interfaces between globular cementite matrix particles; such interfaces form predominantly in rails subjected to bulk quenching.

Язык оригиналаАнглийский
Страницы (с-по)981-987
Число страниц7
ЖурналBulletin of the Russian Academy of Sciences: Physics
Том78
Номер выпуска10
DOI
СостояниеОпубликовано - 21 окт 2014

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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