Structure and Phase Composition of Tempered Martensite Steel After Severe Plastic Deformation; AIP Conference Proceedings; Vol. 1899 : Prospects of Fundamental Sciences Development (PFSD-2017)

Structure and Phase Composition of Tempered Martensite Steel After Severe Plastic Deformation; AIP Conference Proceedings; Vol. 1899 : Prospects of Fundamental Sciences Development (PFSD-2017)

Bibliographic Details
Parent link:AIP Conference Proceedings
Vol. 1899 : Prospects of Fundamental Sciences Development (PFSD-2017).— 2017.— [030004, 5 p.]
Corporate Author: Национальный исследовательский Томский политехнический университет Школа базовой инженерной подготовки Отделение русского языка
Other Authors: Nikonenko A. Alisa, Popova N. Natalya, Nikonenko E. L. Elena Leonidovna, Sizonenko N. Nina, Koneva N. Nina
Summary:Title screen
The paper presents transmission electron microscopic investigations of the structure and X-ray diffraction analysis of the phase composition of tempered martensite steel of 0.06Mo-1V-1Nb-Fe type deformed via the Equal Channel Angular Extrusion (ECAE) technique. As it turns, the ECAE has an effect on the morphology and phase composition of the alloy. Its faulted structure, dislocation density, internal stresses, and the size of coherent scattering areas are investigated in this paper. A special attention is paid to misorientations between grains. It is shown that in its original state (before ECAE), the steel structure represents tempered lath martensite and grains of [alpha]-phase. Carbide particles of М[2]С type are present inside these grains and at their boundaries. ECAE deformation results in a complete fragmentation of lath martensite and grinding of [alpha]-phase grains. A partial fracture and dissolution of carbide particles occurs. Carbon releases from carbides and localizes on defects of the crystal lattice. ECAE deformation increases misorientations in lath martensite (up to 25-30 degrees) and nucleation of micrograins in former grains of [alpha]-phase.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2017
Series:Modification of materials structure and properties
Subjects:
электронный ресурс
труды учёных ТПУ
структуры
фазовый состав
стали
закаленные стали
пластические деформации
просвечивающая электронная микроскопия
дифракция
рентгеновские лучи
Online Access:https://doi.org/10.1063/1.5009849
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=657876

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