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

被引:3
|
作者
de Oliveira Hein, Luis Rogerio [1 ]
de Oliveira, Jose Alberto [1 ]
de Campos, Kamila Amato [1 ]
机构
[1] UNESP Sao Paulo State Univ, LAIMat Mat Imaging Lab, Mat & Technol Dept, Fac Engn Guaratingueta, BR-12516410 Guaratingueta, SP, Brazil
基金
巴西圣保罗研究基金会;
关键词
3D reconstruction; fractography; scanning electron microscopy (SEM); optical microscopy; fatigue; CRACK GROWTH; NIH IMAGE; RESOLUTION;
D O I
10.1002/jemt.22247
中图分类号
R602 [外科病理学、解剖学]; R32 [人体形态学];
学科分类号
100101 ;
摘要
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.
引用
收藏
页码:909 / 913
页数:5
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