Correlative light-electron fractography for fatigue striations characterization in metallic alloys

Author(s)

de Oliveira Hein, Luis Rogerio ^[1] ; de Oliveira, Jose Alberto ^[1] ; de Campos, Kamila Amato ^[1]

Affiliation

^[1] UNESP Sao Paulo State Univ, LAIMat Mat Imaging Lab, Mat & Technol Dept, Fac Engn Guaratingueta, BR-12516410 Guaratingueta, SP - Brazil

• Document type: Journal article
• Source: MICROSCOPY RESEARCH AND TECHNIQUE; v. 76, n. 9, p. 909-913, SEP 2013.
• Web of Science Citations: 2

Abstract

The correlative light-electron fractography technique combines correlative microscopy concepts to the extended depth-from-focus reconstruction method, associating the reliable topographic information of 3-D maps from light microscopy ordered Z-stacks to the finest lateral resolution and large focus depth from scanning electron microscopy. Fatigue striations spacing analysis can be precisely measured, by correcting the mean surface tilting with the knowledge of local elevation data from elevation maps. This new technique aims to improve the accuracy of quantitative fractography in fatigue fracture investigations. Microsc. Res. Tech. 76:909-913, 2013. (c) 2013 Wiley Periodicals, Inc. (AU)

• FAPESP's process: 11/01835-3 - Correlative fractography: convergence of microscopy and digital image processing techniques for quantitative and qualitative characterization of fracture micromechanisms
• Grantee: Luis Rogerio de Oliveira Hein
• Support Opportunities: Regular Research Grants
• FAPESP's process: 11/01042-3 - Fractal behavior of fatigue fracture surfaces for aircraft alloys
• Grantee: José Alberto de Oliveira
• Support Opportunities: Scholarships in Brazil - Scientific Initiation