Výsledky vyhledávání - "Denis Entemeyer"

Akademický článek

Scaling in the Local Strain-Rate Field during Jerky Flow in an Al-3%Mg Alloy

Autor: Mikhail Lebyodkin, Youcef Bougherira, Tatiana Lebedkina, Denis Entemeyer

Publikováno v: Metals, Vol 10, Iss 1, p 134 (2020)

Jerky flow in alloys, or the Portevin-Le Chatelier effect, presents an outstanding example of self-organization phenomena in plasticity. Recent acoustic emission investigations revealed that its microscopic dynamics is governed by scale invariance ma

Externí odkaz: https://doaj.org/article/87a6269fdb7747619685557487dfc4b1

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Décapage thermomécanique en voie sèche par jet d’azote cryogénique

Autor: Abdel TAZIBT, Denis ENTEMEYER, Mustapha YAHIAOUI, Thierry GROSDIDIER

Publikováno v: Traitements des métaux.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::db5a921c917e6dc040b1bed4ef9499af
https://doi.org/10.51257/a-v1-in253

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Scaling in the Local Strain-Rate Field during Jerky Flow in an Al-3%Mg Alloy

Autor: Denis Entemeyer, Mikhail Lebyodkin, Tatiana Lebedkina, Y. Bougherira

Publikováno v: Metals
Volume 10
Issue 1
Metals, MDPI, 2020, 10 (1), pp.134. ⟨10.3390/met10010134⟩
Metals, Vol 10, Iss 1, p 134 (2020)

International audience; Jerky flow in alloys, or the Portevin-Le Chatelier effect, presents an outstanding example of self-organization phenomena in plasticity. Recent acoustic emission investigations revealed that its microscopic dynamics is governe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1fb9d953f0b4581fb0b97aa1daba351c

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High Pressure Cryogenic Nitrogen Jet for Clean Coating Removal: Experimental Study of Polyamide Ablation

Autor: Mustapha Yahiaoui, Jérôme Serri, Abdel Tazibt, Thierry Grosdidier, Denis Entemeyer, Yassine Hajji

Publikováno v: Materials Science Forum. 941:1651-1655

The potential of a recently developed technique that uses a clean supercritical High Pressure Cryogenic Nitrogen Jet (HPCryoN2Jet) for surface ablation and cleaning is depicted. In contrast to existent coating-removal techniques (chemical stripping,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1fe09112c98a2398a9ef50bc39a88eed
https://doi.org/10.4028/www.scientific.net/msf.941.1651

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Crossover in the scale-free statistics of acoustic emission associated with the Portevin-Le Chatelier instability

Autor: Denis Entemeyer, Tatiana Lebedkina, Mikhail Lebyodkin, Y. Bougherira, I.V. Shashkov

Publikováno v: Scripta Materialia
Scripta Materialia, Elsevier, 2018, 148, pp.47-50. ⟨10.1016/j.scriptamat.2018.01.017⟩

International audience; The acoustic emission accompanying plastic deformation obeys scale-free statistics reflecting avalanche-like dis-location motion. This feature holds out for the macroscopically unstable deformation of alloys. However, stress s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7079186d5abbbee2580a824be6657f6
https://hal.archives-ouvertes.fr/hal-02173968

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Autor: Denis Entemeyer, N. P. Kobelev, Mikhail Lebyodkin, Claude Fressengeas, Y. Bougherira, V. S. Gornakov, T.A. Lebedkina, I. V. Shashkov

Publikováno v: Acta Materialia
Acta Materialia, Elsevier, 2012, 60 (9), pp.3729-3740. ⟨10.1016/j.actamat.2012.03.026⟩

International audience; Jerky flow in dilute alloys, or the Portevin-Le Chatelier effect, is investigated using statistical analysis of time series characterizing the evolution of the plastic activity at distinct scales of observation, namely, the ma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4ac68e4c5e216f960a0763cd5eb1f75
https://hal.archives-ouvertes.fr/hal-02173954

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Autor: Denis Entemeyer, Y. Bougherira, N. P. Kobelev, Mikhail Lebyodkin, T.A. Lebedkina, I. V. Shashkov, Claude Fressengeas

Publikováno v: Acta Materialia
Acta Materialia, Elsevier, 2012, 60 (3), pp.844-850. ⟨10.1016/j.actamat.2011.10.042⟩

International audience; The jerky flow of dilute alloys, or the Portevin-Le Chatelier effect, has a burst-like intermittent character at different fluctuation size levels. Multifractal analysis is applied to both the macroscopic stress serrations and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21941e17b1e37107c79ab34bd9e7f6e7
https://hal.archives-ouvertes.fr/hal-02173961

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Effects of the impact of a low temperature nitrogen jet on metallic surfaces

Autor: Denis Entemeyer, Hicham Laribou, Abdel Tazibt, Véronique Jeanclaude, Claude Fressengeas, Raphaël Pesci

Publikováno v: Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, Royal Society, The, 2012, Poceedings of the Royal Society, 468 (2147), pp.3601-3619. ⟨10.1098/rspa.2012.0241⟩

Lien vers la version éditeur: http://rspa.royalsocietypublishing.org/content/468/2147/3601.abstract The technology of nitrogen jets impacting surfaces at low temperature has recently been introduced for surface cleaning/stripping. Under the impact o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef43c6186d5fe06a14e2996add5404e1
https://hdl.handle.net/10985/7955

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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

Publikováno v: 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⟩

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

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab524f113e10161a4da0b94ca1b1b613
https://hal.archives-ouvertes.fr/hal-02174092

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The intermittency of plasticity in an Al3%Mg alloy

Autor: Y. Bougherira, T.A. Lebedkina, Claude Fressengeas, N. P. Kobelev, Mikhail Lebyodkin, Denis Entemeyer

Publikováno v: Journal of Physics: Conference Series
Journal of Physics: Conference Series, IOP Publishing, 2010, 240, pp.012009. ⟨10.1088/1742-6596/240/1/012009⟩

International audience; Statistics of acoustic emission accompanying plastic deformation and of stress serrations caused by the Portevin-Le Chatelier effect are studied during tension of an Al3%Mg alloy at room temperature. Power-law distributions of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d18705b7a78b9d08987276c601b60cd
https://hal.archives-ouvertes.fr/hal-02173964/document

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