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Quantitative characterization of cleavage and hydrogen-assisted quasi-cleavage fracture surfaces with the use of confocal laser scanning microscopy

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dc.contributor.author Merson E.
dc.contributor.author Kudrya A.
dc.contributor.author Trachenko V.
dc.contributor.author Merson D.
dc.contributor.author Danilov V.
dc.contributor.author Vinogradov A.
dc.date.accessioned 2018-09-19T20:39:04Z
dc.date.available 2018-09-19T20:39:04Z
dc.date.issued 2016
dc.identifier.issn 0921-5093
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/143088
dc.description.abstract © 2016 Elsevier B.V."True" cleavage (TC) and quasi-cleavage (QC) fracture surfaces of low-carbon steel specimens tested in liquid nitrogen and after hydrogen charging respectively were investigated by quantitative confocal laser scanning microscopy (CLSM) and conventional scanning electron microscopy (SEM) with electron-backscattered diffraction (EBSD). Topological and crystallographic features of the TC fracture surface are found in good agreement with the generally accepted cleavage mechanism: TC facets diameters correspond to those of grains; the crack path strictly follows the crystallographic orientation of grains and the most of the cleavage cracks are parallel to [100] planes. On the 2D SEM images, the QC facets appeared resembling the TC ones in terms of river line patterns, shapes and sizes. However, the substantial differences between the topography of these two kinds of fracture surfaces were revealed by 3D CLSM: the average misorientation angle between QC facets and the roughness of the QC fracture surface were much lower than those measured for TC. It is demonstrated that all these features are attributed to the specific fracture mechanism operating during hydrogen-assisted cracking.
dc.relation.ispartofseries Materials Science and Engineering A
dc.subject Cleavage
dc.subject Confocal laser scanning microscopy
dc.subject Facets
dc.subject Fisheye
dc.subject Hydrogen-assisted cracking
dc.subject Quasi-cleavage
dc.title Quantitative characterization of cleavage and hydrogen-assisted quasi-cleavage fracture surfaces with the use of confocal laser scanning microscopy
dc.type Article
dc.relation.ispartofseries-volume 665
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 35
dc.source.id SCOPUS09215093-2016-665-SID84962816216


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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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