Noncontacting thermoelectric detection of material imperfections in metals [electronic resource]
This project was aimed at developing a new noncontacting thermoelectric method for nondestructive detection of material imperfections in metals. The method is based on magnetic sensing of local thermoelectric currents around imperfections when a temperature gradient is established throughout a condu...
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Online Access |
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| Corporate Author: | |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Department of Energy. Office of Science ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
2005.
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| Subjects: |
MARC
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| 245 | 0 | 0 | |a Noncontacting thermoelectric detection of material imperfections in metals |h [electronic resource] |
| 260 | |a Washington, D.C. : |b United States. Department of Energy. Office of Science ; |a Oak Ridge, Tenn. : |b distributed by the Office of Scientific and Technical Information, U.S. Department of Energy, |c 2005. | ||
| 336 | |a text |b txt |2 rdacontent. | ||
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| 338 | |a online resource |b cr |2 rdacarrier. | ||
| 500 | |a Published through SciTech Connect. | ||
| 500 | |a 06/17/2005. | ||
| 500 | |a "doe/er/45855" | ||
| 500 | |a Feng Yu; Peter B. Nagy; Adnan H. Nayfeh; Waseem I. Faidi; Hector Carreon; Balachander Lakshminaraya; Bassam Abu-Nabah. | ||
| 513 | |a Final; |b 09/19/2000 - 03/15/2005. | ||
| 520 | 3 | |a This project was aimed at developing a new noncontacting thermoelectric method for nondestructive detection of material imperfections in metals. The method is based on magnetic sensing of local thermoelectric currents around imperfections when a temperature gradient is established throughout a conducting specimen by external heating and cooling. The surrounding intact material serves as the reference electrode therefore the detection sensitivity could be very high if a sufficiently sensitive magnetometer is used in the measurements. This self-referencing, noncontacting, nondestructive inspection technique offers the following distinct advantages over conventional methods: high sensitivity to subtle variations in material properties, unique insensitivity to the size, shape, and other geometrical features of the specimen, noncontacting nature with a substantial stand-off distance, and the ability to probe relatively deep into the material. The potential applications of this method cover a very wide range from detection metallic inclusions and segregations, inhomogeneities, and tight cracks to characterization of hardening, embrittlement, fatigue, texture, and residual stresses. | |
| 520 | 0 | |a Nondestructive Testing, Thermoelectric Inspection. | |
| 536 | |b FG02-00ER45855. | ||
| 650 | 7 | |a Defects. |2 local. | |
| 650 | 7 | |a Detection. |2 local. | |
| 650 | 7 | |a Electrodes. |2 local. | |
| 650 | 7 | |a Embrittlement. |2 local. | |
| 650 | 7 | |a Hardening. |2 local. | |
| 650 | 7 | |a Heating. |2 local. | |
| 650 | 7 | |a Magnetometers. |2 local. | |
| 650 | 7 | |a Probes. |2 local. | |
| 650 | 7 | |a Residual Stresses. |2 local. | |
| 650 | 7 | |a Sensitivity. |2 local. | |
| 650 | 7 | |a Shape. |2 local. | |
| 650 | 7 | |a Temperature Gradients. |2 local. | |
| 650 | 7 | |a Texture. |2 local. | |
| 650 | 7 | |a Materials Science. |2 edbsc. | |
| 650 | 7 | |a Engineering. |2 edbsc. | |
| 710 | 2 | |a University of Cincinnati. |4 res. | |
| 710 | 1 | |a United States. |b Department of Energy. |b Office of Science. |4 spn. | |
| 710 | 1 | |a United States. |b Department of Energy. |b Office of Scientific and Technical Information. |4 dst. | |
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