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

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish
Pages (from-to)981-987
Number of pages7
JournalBulletin of the Russian Academy of Sciences: Physics
Volume78
Issue number10
DOIs
Publication statusPublished - 21 Oct 2014

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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