Abstract
The authors present the theoretical and experimental results of detecting surface fatigue cracks in metallic specimens on the basis of temperature distribution in the crack area. The aim of the work is to investigate the relationships governing the thermal inspection of surface fatigue cracks with the short time of existence of signals emitted by the defect. The adiabatic nature of surface heat exchange was solved using the finite difference method on an ES-1045 computer. Experimental thermographic results are given for VZhL12U alloy. It is shown that fatigue cracks which cannot be detected by other methods can be detected on the basis of the temperature distribution in the specimen, determined by magnetic recording amplitude thermograms. The most reliable results were obtained for the specimens coated with a developing dye used in penetrant tests of the specimens.
| Original language | English |
|---|---|
| Pages (from-to) | 198-202 |
| Number of pages | 5 |
| Journal | The Soviet journal of nondestructive testing |
| Publication status | Published - Nov 1988 |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
Thermal inspection of surface fatigue cracks in creepresisting nickel alloys. / Kasatkin, M. A.; Vavilov, V. P.
In: The Soviet journal of nondestructive testing, 11.1988, p. 198-202.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Thermal inspection of surface fatigue cracks in creepresisting nickel alloys
AU - Kasatkin, M. A.
AU - Vavilov, V. P.
PY - 1988/11
Y1 - 1988/11
N2 - The authors present the theoretical and experimental results of detecting surface fatigue cracks in metallic specimens on the basis of temperature distribution in the crack area. The aim of the work is to investigate the relationships governing the thermal inspection of surface fatigue cracks with the short time of existence of signals emitted by the defect. The adiabatic nature of surface heat exchange was solved using the finite difference method on an ES-1045 computer. Experimental thermographic results are given for VZhL12U alloy. It is shown that fatigue cracks which cannot be detected by other methods can be detected on the basis of the temperature distribution in the specimen, determined by magnetic recording amplitude thermograms. The most reliable results were obtained for the specimens coated with a developing dye used in penetrant tests of the specimens.
AB - The authors present the theoretical and experimental results of detecting surface fatigue cracks in metallic specimens on the basis of temperature distribution in the crack area. The aim of the work is to investigate the relationships governing the thermal inspection of surface fatigue cracks with the short time of existence of signals emitted by the defect. The adiabatic nature of surface heat exchange was solved using the finite difference method on an ES-1045 computer. Experimental thermographic results are given for VZhL12U alloy. It is shown that fatigue cracks which cannot be detected by other methods can be detected on the basis of the temperature distribution in the specimen, determined by magnetic recording amplitude thermograms. The most reliable results were obtained for the specimens coated with a developing dye used in penetrant tests of the specimens.
UR - http://www.scopus.com/inward/record.url?scp=0024111887&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0024111887&partnerID=8YFLogxK
M3 - Article
SP - 198
EP - 202
JO - Soviet Journal of Nondestructive Testing
JF - Soviet Journal of Nondestructive Testing
SN - 0038-5492
ER -