Search Results - "Raoelison, R.N."

Cold gas dynamic spray additive manufacturing today: Deposit possibilities, technological solutions and viable applications by Raoelison, R.N., Verdy, Ch, Liao, H.

“…This paper reports the current potentials of cold gas dynamic spraying (CGDS). CGDS has been significantly developed to produce several functional solutions…”
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Interface evolution during magnetic pulse welding under extremely high strain rate collision: mechanisms, thermomechanical kinetics and consequences by Li, J.S., Raoelison, R.N., Sapanathan, T., Hou, Y.L., Rachik, M.

“…Magnetic pulse welding enables to produce perplexing interfacial morphologies due to the complex material response during the high strain rate collision. Thus,…”
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In situ metallic porous structure formation due to ultra high heating and cooling rates during an electromagnetic pulse welding by Sapanathan, T., Raoelison, R.N., Buiron, N., Rachik, M.

“…Porous structure formation resulted at the interface of electromagnetic pulse welded joints are investigated and revealed, to identify the development of…”
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Interfacial kinematics and governing mechanisms under the influence of high strain rate impact conditions: Numerical computations of experimental observations by Raoelison, R.N., Sapanathan, T., Padayodi, E., Buiron, N., Rachik, M.

“…This paper investigates the complex interfacial kinematics and governing mechanisms during high speed impact conditions. A robust numerical modelling technique…”
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Depiction of interfacial characteristic changes during impact welding using computational methods: Comparison between Arbitrary Lagrangian - Eulerian and Eulerian simulations by Sapanathan, T., Raoelison, R.N., Padayodi, E., Buiron, N., Rachik, M.

“…This paper investigates the development and evolution of various interfacial features during high speed impact welding processes using numerical simulations…”
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Low pressure cold spraying under 6 bar pressure deposition: Exploration of high deposition efficiency solutions using a mathematical modelling by Raoelison, R.N., Aubignat, E., Planche, M.-P., Costil, S., Langlade, C., Liao, H.

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Study of the elaboration of a practical weldability window in magnetic pulse welding by Raoelison, R.N., Buiron, N., Rachik, M., Haye, D., Franz, G., Habak, M.

“…•A potentially permanent weld has a wavy shape interface and is able to undergo plastic deformation.•The wave height increases with the increase of both…”
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Magnetic pulse welding: Interface of Al/Cu joint and investigation of intermetallic formation effect on the weld features by Raoelison, R.N., Racine, D., Zhang, Z., Buiron, N., Marceau, D., Rachik, M.

“…This paper attempts to highlight emerging issues when joining dissimilar metal pairs by magnetic pulse welding. For this purpose, joint of Al/Cu and Al/Al…”
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Gradient of nanostructures at the interface of Al/Cu welded joints produced by the high strain-rate collision during magnetic pulse impact welding by Raoelison, R.N., Li, J.S., Sapanathan, T., Zhang, Z., Chen, X-G., Marceau, D., Rachik, M.

“…This paper focuses on the nanoscale characterization of a welded Al/Cu interface produced by magnetic pulse welding. Welding tests were performed using three…”
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Transformation sequence of Mg-Si precipitates towards a precipitation of Mn and Cr containing phase governed by the high strain-rate collision during magnetic pulse welding of Al-Mg-Si alloy by Raoelison, R.N., Sapanathan, T., Li, J.S., Zhang, Z., Racine, D., Chen, X.-G., Marceau, D., Rachik, M.

“…This paper investigates the transformation of Mg-Si precipitates formed at an interface of an Al-Mg-Si alloy joint, welded by the high strain-rate collision…”
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Cold gas dynamic spray technology: A comprehensive review of processing conditions for various technological developments till to date by Raoelison, R.N., Xie, Y., Sapanathan, T., Planche, M.P., Kromer, R., Costil, S., Langlade, C.

“…Today, cold gas dynamic spray (CGDS) technology has thrived with considerable capabilities for manufacturing various technological depositions. The deposition…”
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On the complete interface development of Al/Cu magnetic pulse welding via experimental characterizations and multiphysics numerical simulations by Li, J.S., Sapanathan, T., Raoelison, R.N., Hou, Y.L., Simar, A., Rachik, M.

“…•Coupled electromagnetic-mechanical simulation is used to predict impact parameters.•A thermomechanical simulation successfully reproduces various types…”
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Analytical description of solid particles kinematics due to a fluid flow and application to the depiction of characteristic kinematics in cold spraying by Raoelison, R.N.

“…In several multiphase flow applications such as fluidization, thermal spraying, atomization manufacturing and so on, the Newton's law is widely enacted to…”
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Turbulences of the supersonic gas flow during cold spraying and their negative effects: A DNS CFD analysis coupled with experimental observation and laser impulse high-speed shadowgraphs of the particles in-flight flow by Raoelison, R.N., Koithara, L.L, Costil, S., Langlade, C.

“…•Phenomenological flow during cold spraying using DNS CFD analysis.•Heating confinement within the end zone of the nozzle at the upper wall and experimental…”
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Effect of the nanopores in the Al-Cu intermetallic phase on nanoindentation instabilities at the Al/Cu interface of a magnetic pulse impact weld by Raoelison, R.N., Li, J., Sapanathan, T., Favache, A., Simar, A., Rachik, M.

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Magnetic pulse welding of Al/Al and Al/Cu metal pairs: Consequences of the dissimilar combination on the interfacial behavior during the welding process by Raoelison, R.N., Sapanathan, T., Buiron, N., Rachik, M.

“…MPW of Al/Al and Al/Cu pairs—consequences of the dissimilar combination on the interface behavior during the welding. This paper presents a comparison between…”
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Inverse prediction of local interface temperature during electromagnetic pulse welding via precipitate kinetics by Li, J.S., Sapanathan, T., Raoelison, R.N., Zhang, Z., Chen, X.G., Marceau, D., Simar, A., Rachik, M.

“…[Display omitted] •Interface electromagnetic pulse welding involve kinetic changes of precipitates.•Kinetics of precipitate and dispersoid at the interface are…”
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Modeling and numerical simulation of the resistance spot welding of zinc coated steel sheets using rounded tip electrode: Analysis of required conditions by Raoelison, R.N., Fuentes, A., Pouvreau, C., Rogeon, Ph, Carré, P., Dechalotte, F.

“…This paper investigates the essential conditions to improve the accuracy of a resistance spot welding computational study of advanced zinc coated steel sheets…”
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Low pressure cold spraying under 6bar pressure deposition: Exploration of high deposition efficiency solutions using a mathematical modelling by Raoelison, R.N., Aubignat, E., Planche, M.-P., Costil, S., Langlade, C., Liao, H.

“…This paper investigates the improvement of the deposition efficiency (DE) for low pressure cold spraying. In the literature, some possibilities were studied (a…”
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Efficient welding conditions in magnetic pulse welding process by Raoelison, R.N., Buiron, N., Rachik, M., Haye, D., Franz, G.

“…► The efficient welding conditions in MPW rather depend on gap increase than on charging voltage variation. ► The size of the weld given by a torsion-shear…”
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