Features of destruction of a ferrite-martensitic composite

The behavior of a crack in steel with the structure of a ferriticmartensitic composite is studied. The modes of heat treatment for obtaining a composite structure with alternating layers of ferrite and martensite are given. The kinetics of crack development during cyclic tests was studied. The obtai...

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Bibliographic Details
Published in:MATEC web of conferences 2018-01, Vol.226, p.3006
Main Authors: Pustovoit, Viktor N., Duka, Valentina V., Dolgachev, Yuri V., Aref’eva, Ludmila P., Fedosov, Vladislav V., Salynskih, Viktoria M.
Format: Article
Language:English
Subjects:
Composite structures
Crack propagation
Cyclic testing
Ferrites
Heat treatment
Martensite
Sorbite
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Summary:The behavior of a crack in steel with the structure of a ferriticmartensitic composite is studied. The modes of heat treatment for obtaining a composite structure with alternating layers of ferrite and martensite are given. The kinetics of crack development during cyclic tests was studied. The obtained data show that the rate of development of the crack in the material with the structure of the composite is substantially lower than for the usual sorbite structure. It is shown that the frontal growth of the crack in the composite is carried out with “stops”, on which the matrix deforms and its stratification occurs in the direction normal to the front of the crack motion.
ISSN:2261-236X
2274-7214
2261-236X
DOI:10.1051/matecconf/201822603006