| 000 | 03460nlm0a2200397 4500 | ||
|---|---|---|---|
| 001 | 637176 | ||
| 005 | 20231030040201.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\1273 | ||
| 090 | _a637176 | ||
| 100 | _a20140602a2003 k y0rusy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aUS | ||
| 105 | _aa z 101zy | ||
| 135 | _adrnn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aInspecting thermal barrier coatings by IR thermography _fP. G. Bison [et al.] |
|
| 203 |
_aText _celectronic |
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| 300 | _aTitle screen | ||
| 320 | _a[Ref.: p. 326 (16 tit.)] | ||
| 330 | _aAs far as power generation is concerned, coating technologies find the main and more advanced applications. Nowadays, superalloys available for manufacturing hot path components in gas turbine like combustion liners, blades and vanes can not sustain temperatures up to 1100°C. In order to guarantee a significative temperature drop ceramic thermal barrier coatings are deposited onto the metallic core. The thickness of thermal barrier coatings (TBC) ranges from a few hundreds microns up to 1 millimetre or more, depending on component and deposition technique (mainly Air Plasma Spray or Electron Beam Physical Vapour Deposition). The structural integrity of both the substrate and the coating and their mutual adhesion is a key point because any loss of the protective layer exposes the bulk material to an extremely aggressive environment in terms of oxidation and temperature. Therefore, TBC must be tested for detecting of defects during both quality control and periodic in-service inspections. Because of the key role played by thickness and low thermal diffusivity of TBC in the decreasing of the substrate material temperature, both delaminations and thickness variation must be detected and classified. Pulsed Thermography has been successfully applied to this application field. Nevertheless, the procedure gives ambiguous results when thickness or thermal properties change in a continuous way within the thermal barrier. In this paper, a specific study on the detection performances of NDE techniques is presented, even when a non-uniform TBC thickness is superimposed to the disbonding defect. Tests performed at workshop on real and specifically manufactured components are reported. Dedicated processing algorithms improving the test reliability and effectiveness are presented as well. Tests on real components on the field are also reported | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 463 |
_tThermosense XXV, Orlando, April 21, 2003 _oProc. SPIE 5073 _v[P. 318-327] _d2003 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _athermal nondestructive testing | |
| 610 | 1 | _aтепловой неразрушающий контроль | |
| 701 | 1 |
_aBison _bP. G. _gPaolo G. |
|
| 701 | 1 |
_aMarinetti _bS. _gSergio |
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| 701 | 1 |
_aGrinzato _bE. _gErmanno |
|
| 701 | 1 |
_aVavilov _bV. P. _cSpecialist in the field of dosimetry and methodology of nondestructive testing (NDT) _cDoctor of technical sciences (DSc), Professor of Tomsk Polytechnic University (TPU) _f1949- _gVladimir Platonovich _2stltpush _3(RuTPU)RU\TPU\pers\32161 |
|
| 701 | 1 |
_aCernuschi _bF. _gFederico |
|
| 701 | 1 |
_aRobba _bD. _gDaniele |
|
| 801 | 2 |
_aRU _b63413507 _c20140602 _gRCR |
|
| 856 | 4 | _uhttp://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1317308 | |
| 942 | _cCF | ||