High Resolution X-Ray Tomography Applied in the Observation of the Micro-Structure of Materials/ Die Anwendung der hochauflösenden Röntgentomographie zur Untersuchung der Mikrostruktur von Werkstoffen

Autor: Peter Cloetens, Eric Maire, Wolfgang Ludwig, Gilles Peix, Jean-Yves Buffiere, U. Zesch
Rok vydání: 2002
Předmět:
Zdroj: Practical Metallography. 39:155-168
ISSN: 2195-8599
0032-678X
DOI: 10.1515/pm-2002-390305
Popis: The first part of the paper describes the principle of the tomography technique. It then shows some setups which can be used to obtain medium (10 μm) and high (1 μm) resolution three dimensional non destructive images. The second part of the paper is devoted to illustrations of the use of that technique in the field of materials science. The 3D images can be used in a qualitative manner. Examples are given for medium resolution with metallic foams and model metal matrix composites reinforced with spherical particles. High resolution examples are given for aluminum alloys. For low-absorbent materials, we show that the phase contrast obtained by using the synchrotron radiation can also provide a valuable solution. Finally, we describe the quantitative use of these images when coupled with an in-situ tensile test, or for the simple analysis of the initial microstructure of several structural materials.
Databáze: OpenAIRE