000			02112nam1a2200301 4500
001			599054
005			20231030033815.0
035			_a(RuTPU)RU\TPU\tpu\22883
035			_aRU\TPU\tpu\22754
090			_a599054
100			_a20130321a1996 k y0engy50 ba
101	0		_aeng
102			_aNL
200	1		_aSurface transient temperature inversion for hidden corrosion characterisation: theory and applications _fV. P. Vavilov [еt al.]
320			_9572 _aRef.: 11 tit.
330			_aCorrosion in metals is simulated with variations in plate thickness which are laterally infinite in a 1D model and are represented by milled flat-bottom holes in a 2D model. Temperature contrast over corroded areas is chosen as an informative parameter, quite independent of absorbed thermal energy in the infra-red thermographic test. It is shown that, due to lower sensitivity to rear-side effects at the beginning of the thermal process and increasing 3D heat diffusion effects at the end of the process, there is an optimum time to detect corrosion. A robust inversion function is proposed and its stability against variations in tested material, heat pulse duration and observation time is analysed using numerical modelling. Corrosion in a steel specimen of 1.3 mm thickness is experimentally studied, having proved the validity of the inversion algorithm with an average accuracy of 17% for material loss ranging from 74 to 14%.
333			_aВ фонде НТБ ТПУ отсутствует
461			_tInternational Journal of Heat and Mass Transfer
463			_tVol. 39, iss. 2 _vP. 355-371 _d1996
610	1		_aтруды учёных ТПУ
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 _xTPU _2stltpush _3(RuTPU)RU\TPU\pers\32161
701		1	_aGrinzato _bE.
701		1	_aBison _bP. G.
701		1	_aMarinetti _bS.
701		1	_aBales _bM. J.
801		1	_aRU _b63413507 _c20130226
801		2	_aRU _b63413507 _c20140423 _gRCR
942			_cBK