Formation of Gradient Structure–Phase States in the Surface Layers of 100-m Differentially Quenched Rails

Formation of Gradient Structure–Phase States in the Surface Layers of 100-m Differentially Quenched Rails

Détails bibliographiques
Parent link:	Russian Metallurgy (Metally) Vol. 2019, iss. 7.— 2019.— [P. 710-715]
Collectivité auteur:	Национальный исследовательский Томский политехнический университет Исследовательская школа химических и биомедицинских технологий Научно-исследовательский центр "Физическое материаловедение и композитные материалы"
Autres auteurs:	Gromov V. E. Viktor Evgenjevich, Yurjev A. A., Ivanov Yu. F. Yuriy Fedorovich, Morozov K. V., Konovalov S. V., Peregudov O. A.
Résumé:	Title screen The evolution of the structural-phase states in the surface layers of the head of differentially quenched DT350 rails to a depth of 10 mm are studied by optical microscopy and transmission electron diffraction microscopy along the central axis after the passage of a tonnage of 691.8 mln t gross in the experimental ring of AO VNIIZhT (proof ground for railway transport). The formation of a gradient structure is revealed. In this structure, the scalar and excess dislocation densities, the lattice curvature–torsion amplitude, and the degree of deformation-induced transformation of lamellar pearlite change gradually. The mechanisms of fracture of cementite lamellae are considered. Режим доступа: по договору с организацией-держателем ресурса
Publié:	2019
Sujets:	электронный ресурс труды учёных ТПУ differentially quenched rails structure phase composition long-term operation фазовый состав длительная эксплуатация
Accès en ligne:	https://doi.org/10.1134/S003602951907005X
Format:	Électronique Chapitre de livre
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661324

Internet

https://doi.org/10.1134/S003602951907005X