Correspondences between Images of a Fracture Surface and Material Microstructure

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F09%3A00160396" target="_blank" >RIV/68407700:21340/09:00160396 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Correspondences between Images of a Fracture Surface and Material Microstructure

Popis výsledku v původním jazyce

A specimen modeling welded joints in steam turbine rotor was fractured by a fatigue crack in the section of material P9 (EN12070). Fracture surface was documented by SEM, material microstructure close under it by a light microscope, both in the same magnification 500x. Images covering the whole range of crack growth were analyzed. A procedure composed of normalization, detection of fibres and 2D Fourier decomposition was used to find characteristic dimensions of image textures in both image sets. The substructure of martensitic laths and plates was found to be significantly manifested in the morphology of fracture surface. An automatic method of estimation of striation spacing was developed on the basis of directional analysis of the 2D spectra of fracture surface images.

Název v anglickém jazyce

Correspondences between Images of a Fracture Surface and Material Microstructure

Popis výsledku anglicky

A specimen modeling welded joints in steam turbine rotor was fractured by a fatigue crack in the section of material P9 (EN12070). Fracture surface was documented by SEM, material microstructure close under it by a light microscope, both in the same magnification 500x. Images covering the whole range of crack growth were analyzed. A procedure composed of normalization, detection of fibres and 2D Fourier decomposition was used to find characteristic dimensions of image textures in both image sets. The substructure of martensitic laths and plates was found to be significantly manifested in the morphology of fracture surface. An automatic method of estimation of striation spacing was developed on the basis of directional analysis of the 2D spectra of fracture surface images.

Druh

D - Stať ve sborníku

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Stereology and Image Analysis, ECS 10 - The 10th European Congress of ISS

ISBN

978-88-7488-310-3

ISSN

—

e-ISSN

—

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

Progetto Leonardo

Místo vydání

Bologna

Místo konání akce

Milano

Datum konání akce

22. 6. 2009

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—