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- 3-D reconstruction by extended depth-of-field in failure analysis - Case study I: Qualitative fractographic investigation of fractured bolts in a partial valve
- Universidade Estadual Paulista (UNESP)
- Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
- Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
- Extended depth-of-field 3-D reconstruction is an image processing based technique associated to optical microscopy for qualitative or quantitative analysis of surfaces topographies. It is proposed here as a low-cost alternative to scanning electron microscopy or confocal laser scanning microscopy methods in some cases in failure analysis. A case study of fractured bolts in a partial valve from a petrochemical plant is presented in this paper to illustrate a qualitative fractographic investigation using this technique. (C) 2009 Elsevier Ltd. All rights reserved.
- Engineering Failure Analysis. Oxford: Pergamon-Elsevier B.V. Ltd, v. 17, n. 2, p. 515-520, 2010.
- Pergamon-Elsevier B.V. Ltd
- Nickel-based superalloys
- Optical microscopy
- Intergranular fracture
- Pressurized components
- Acesso restrito
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