Keyword: «damage micromechanics»

STUDY OF FRACTURE MICRO-MECHANISMS FOR RAIL STEEL UNDER THE EXTREME CONDITIONS OF THE NORTH

Authors:

Ivan Dyachkovskii,

Valerii Lepov,

V. Achikasova,

Albert Grigorev

Impact tests of rail steel samples used on railways in the extreme climatic conditions of Central Yakutia, and morphological analysis of fracture surfaces using scanning tunnel microscopy of damaged surfaces revealed features of the morphology of the microstructure of deformed sections of the rail.

Keywords: steel, impact bending, scanning tunneling microscopy, low-temperature ductile-to-brittle transition, fractography, damage micromechanics