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| Abstract No.: |
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Scheduled at:
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Thursday, June 21, 2007, Brüssel 1:00 PM
Funktionelle Oberflächen / Modellierung und Simulation
Functional surfaces / Modeling and simulation
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| Title: |
Real Time Monitoring and Modeling of Reactive Flow of Molten Metal Through Micro Surface Alterations During Brazing
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| Authors: |
Dusan Sekulic* / University of Kentucky, United States of America
Hui Zhao / University of Kentucky, Colege of Engineering, USA
Philip Hadinata/ University of Kentucky, Colege of Engineering, USA
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| Abstract: |
One of the most critical physical phenomena during a brazing process is spreading of molten filler/clad metal over a substrate. The mechanism of this spreading, governed by surface tension, is still to a large extent an elusive aspect of the art of brazing. This statement is true in particular from the point of view of reliable predictions of spreading over rough and/or morphologically altered surfaces. This contribution illustrates a research effort devoted to an in real-time, in situ high speed visualization of spreading of a molten metal (e.g., aluminum alloy systems over aluminum substrates) through micro alterations of the substrate?s surface. A new set of high speed data involving the triple line movement will be presented. A model of a reactive flow inherent to the considered topology of micro surface alterations will be discussed.
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