Quantitative fractography under light microscopy: A digital image processing approach

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorHorovistiz, Ana Lúcia [UNESP]-
Autor(es): dc.creatorRibeiro, Luciano M.F. [UNESP]-
Autor(es): dc.creatorCampos, Kamila A. [UNESP]-
Autor(es): dc.creatorJesuino, Glaucio A. [UNESP]-
Autor(es): dc.creatorGuimarães, Valdir A. [UNESP]-
Autor(es): dc.creatorHein, Luis Rogerio de O. [UNESP]-
Data de aceite: dc.date.accessioned2022-08-04T22:01:15Z-
Data de disponibilização: dc.date.available2022-08-04T22:01:15Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2003-02-01-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/219280-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/219280-
Descrição: dc.descriptionThis work is an example of the improvement on quantitative fractography by means of digital image processing and light microscopy. Two techniques are presented to investigate the quantitative fracture behavior of Ti-4Al-4V heattreated alloy specimens, under Charpy impact testing. The first technique is the Minkowski method for fractal dimension measurement from surface profiles, revealing the multifractal character of Ti-4Al-4V fracture. It was not observed a clear positive correlation of fractal values against Charpy energies for Ti-4Al-4V alloy specimens, due to their ductility, microstructural heterogeneities and the dynamic loading characteristics at region near the V-notch. The second technique provides an entire elevation map of fracture surface by extracting in-focus regions for each picture from a stack of images acquired at successive focus positions, then computing the surface roughness. Extended-focus reconstruction has been used to explain the behavior along fracture surface. Since these techniques are based on light microscopy, their inherent low cost is very interesting for failure investigations.-
Descrição: dc.descriptionLab. de Analise de Imagens de Mat. Campus de Guaratinguetá UNESP, Av: Dr. Ariberto Pereira Cunha, 333, Pedregulho, Guaratinguetá-SP-
Descrição: dc.descriptionLab. de Analise de Imagens de Mat. Campus de Guaratinguetá UNESP, Av: Dr. Ariberto Pereira Cunha, 333, Pedregulho, Guaratinguetá-SP-
Formato: dc.format57-68-
Idioma: dc.languagede-
Idioma: dc.languageen-
Relação: dc.relationPraktische Metallographie/Practical Metallography-
???dc.source???: dc.sourceScopus-
Título: dc.titleQuantitative fractography under light microscopy: A digital image processing approach-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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