Surface Damage and Treatment by Impact of a Low Temperature Nitrogen Jet
| Autor: | Hicham Laribou, Claude Fressengeas, Denis Entemeyer, Véronique Jeanclaude, Abdel Tazibt, Francisco Chinesta, Yvan Chastel, Mohamed El Mansori |
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| Přispěvatelé: | Laboratoire de physique et mécanique des matériaux (LPMM), Université Paul Verlaine - Metz (UPVM)-Institut National Polytechnique de Lorraine (INPL)-Ecole Nationale d'Ingénieurs de Metz (ENIM)-Centre National de la Recherche Scientifique (CNRS), Centre de Recherche, d'Innovation et de Transfert Technologique en Jet Fluide (CRITT TJF&U), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), ANR-ADEME grant #ANR-06-ECOT-Oox, JAZOLTHOP, ANR-06-ECOT-0013,JAZOLTHOP,Procédé propre et performant de préparation de surface par Jet d'azote liquide sous très haute pression(2006) |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Shock wave
0209 industrial biotechnology Materials science Nitrogen Nozzle Nucleation 02 engineering and technology Liquid nitrogen Spall Dwell time 020303 mechanical engineering & transports 020901 industrial engineering & automation 0203 mechanical engineering Machining [SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph] Forensic engineering Spallation Impact Damage Composite material |
| Zdroj: | AIP Conference Proceedings INTERNATIONAL CONFERENCE ON ADVANCES IN MATERIALS AND PROCESSING TECHNOLOGIES (AMPT2010) INTERNATIONAL CONFERENCE ON ADVANCES IN MATERIALS AND PROCESSING TECHNOLOGIES (AMPT2010), 2010, Paris, France. pp.1222-1227, ⟨10.1063/1.3552349⟩ |
| DOI: | 10.1063/1.3552349⟩ |
| Popis: | International audience; Nitrogen jets under high pressure and low temperature have been introduced recently. The process consists in projecting onto a surface a low temperature jet obtained from releasing the liquid nitrogen stored in a high pressure tank (e.g. 3000 bars) through a nozzle. It can be used in a range of industrial applications, including surface treatment or material removal through cutting, drilling, striping and cleaning. The process does not generate waste other than the removed matter, and it only releases neutral gas into the atmosphere. This work is aimed at understanding the mechanisms of the interaction between the jet and the material surface. Depending on the impacted material, the thermo-mechanical shock and blast effect induced by the jet can activate a wide range of damage mechanisms, including cleavage, crack nucleation and spalling, as well as void expansion and localized ductile failure. The test parameters (standoff distance, dwell time, operating pressure) play a role in selecting the dominant damage mechanism, but combinations of these various modes are usually present. Surface treatment through phase transformation or grain fragmentation in a layer below the surface can also be obtained by adequate tuning of the process parameters. In the current study, work is undertaken to map the damage mechanisms in metallic materials as well as the influence of the test parameters on damage, along with measurements of the thermo-mechanical conditions (impact force, temperature) in the impacted area. |
| Databáze: | OpenAIRE |
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