Transient behaviour of deposition of liquid metal droplets on a solid substrate
| Autor: | Edward Romero, Gilles Fras, Fabien Soulié, Julien Chapuis, Cyril Bordreuil |
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| Přispěvatelé: | AREVA NP - Centre Technique (FRANCE), Assemblages Soudés (AS), Laboratoire de Mécanique et Génie Civil (LMGC), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2015 |
| Předmět: |
Liquid metal
Materials science 02 engineering and technology Welding 01 natural sciences [SPI.MAT]Engineering Sciences [physics]/Materials 010305 fluids & plasmas law.invention Gas metal arc welding Physics::Fluid Dynamics Surface tension Solid substrate law surface tension [SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph] 0103 physical sciences Deposition (phase transition) Fluid Flow and Transfer Processes Mechanics 021001 nanoscience & nanotechnology Condensed Matter Physics [SPI.MECA.GEME]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanical engineering [physics.class-ph] liquid deposition Transient (oscillation) 0210 nano-technology |
| Zdroj: | Heat and Mass Transfer Heat and Mass Transfer, Springer Verlag, 2016, 52 (10), pp.2283-2292. ⟨10.1007/s00231-015-1742-9⟩ |
| ISSN: | 1432-1181 0947-7411 |
| DOI: | 10.1007/s00231-015-1742-9 |
| Popis: | International audience; This paper investigates the mechanisms that contribute to the spreading of liquid metal macro-drop deposited during Stationary Pulsed Gas Metal Arc Welding on an initially cold solid workpiece. Surface tension and inertial effects take an important part in the behaviour of the liquid metal macro-drop, but in this configuration the influence of energetic effects can also be significant. The experimental results are discussed in the light of dimensional analysis in order to appreciate the influence of the process parameters and the physical mechanisms involved on the spreading of a macro-drop. A law is established to model forced non-isothermal spreading. |
| Databáze: | OpenAIRE |
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