Investigation of the foaming process of metals by synchrotron radiation imaging

Lukas Helfen; Heiko Stanzick; Joachim Ohser; Katja Schladitz; Petra Rejmankova-Pernot; John Banhart; Tilo Baumbach

doi:10.1117/12.484282

22 July 2003 Investigation of the foaming process of metals by synchrotron radiation imaging

Lukas Helfen, Heiko Stanzick, Joachim Ohser, Katja Schladitz, Petra Rejmankova-Pernot, John Banhart, Tilo Baumbach

Proceedings Volume 5045, Testing, Reliability, and Application of Micro- and Nano-Material Systems; (2003) https://doi.org/10.1117/12.484282
Event: NDE for Health Monitoring and Diagnostics, 2003, San Diego, California, United States

Abstract

Synchrotron-radiation imaging serves as a powerful tool for the non-destructive material characterization of metallic foams. The foaming process is visualized in situ by real-time radiography in projection image sequences. The temporal evolution of foam expansion from early pore formation over pore growth up to the collapse of the foam structure are reported. Ex situ microtomography is applied to the study of statistical distribution properties at the early foaming stages. Various image processing and analysis techniques yield quantitative results concerning pore nucleation and their early formation, film rupture and foam drainage. The similarities and differences of the metal foaming process with respect to the precursor material, its processing steps and process parameters are determinable.

Citation Download Citation

Lukas Helfen, Heiko Stanzick, Joachim Ohser, Katja Schladitz, Petra Rejmankova-Pernot, John Banhart, and Tilo Baumbach "Investigation of the foaming process of metals by synchrotron radiation imaging", Proc. SPIE 5045, Testing, Reliability, and Application of Micro- and Nano-Material Systems, (22 July 2003); https://doi.org/10.1117/12.484282

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