Eddy currents to control steel decarburising
| Autor: | Didier Chicot, David Mercier, Jacky Lesage, Xavier Decoopman |
|---|---|
| Přispěvatelé: | Laboratoire de Mécanique de Lille - FRE 3723 (LML), Université de Lille, Sciences et Technologies-Centrale Lille-Centre National de la Recherche Scientifique (CNRS), Université de Lille, Sciences et Technologies-Ecole Centrale de Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Génie Civil et Géo-Environnement (LGCgE) - ULR 4515 (LGCgE), Université d'Artois (UA)-Université de Lille-Ecole nationale supérieure Mines-Télécom Lille Douai (IMT Lille Douai), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL) |
| Rok vydání: | 2007 |
| Předmět: |
Work (thermodynamics)
CARBON DIFFUSION Materials science 02 engineering and technology Surfaces and Interfaces Mechanics EDDY CURRENT 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Signal Surfaces Coatings and Films law.invention [SPI]Engineering Sciences [physics] DECARBURISING law 0103 physical sciences Materials Chemistry Eddy current Electronic engineering MICROSTRUCTURE Signal intensity 0210 nano-technology 010301 acoustics ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Surface Engineering Surface Engineering, Maney Publishing, 2007, 23 (4), pp.273-278. ⟨10.1179/174329407X215140⟩ Surface Engineering, 2013, 23 (4), pp.273-278. ⟨10.1179/174329407X215140⟩ |
| ISSN: | 1743-2944 0267-0844 |
| Popis: | The work presented in the present paper aims at evaluating the opportunity of the eddy current method to characterise the decarburising extent which can occur during usual heat treatments of steel like austenising. The present work is based on previous studies highlighting the ability of eddy current to detect superficial defects such as cracks, pores or the possibility to corroborate its signal intensity with the mechanical microhardness modifications generated by carburising of steel. That is why eddy current is used here to systematically compare non-affected sample with the decarburised ones at different levels of decarburising. Among the techniques available to characterise the extent of decarburising, i.e. optical observations and microhardness profile, the eddy current technique provides a non-destructive method which is often required from an industrial control point of view. The results obtained show a strong correlation between the eddy current signal and the decarburised depth of the samples. As a consequence, they open realistic perspectives to characterise decarburising industrially. |
| Databáze: | OpenAIRE |
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