Nondestructive inspection of scuff-resistant coating adhesion flaws in automobile engine block cylinders

The laser-pulsed thermography technique was investigated to test its suitability as an inspection method for thermally-sprayed coatings in automobile engine block cylinders. Investigations were conducted on a steel-sprayed coating on an aluminum cylinder with intentionally produced adhesion flaws at...

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Bibliographic Details
Published in:Journal of adhesion science and technology 2004-01, Vol.18 (8), p.943-950
Main Author: Bendada, A.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Physicochemistry of polymers
Polymer industry, paints, wood
Technology of polymers
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Summary:The laser-pulsed thermography technique was investigated to test its suitability as an inspection method for thermally-sprayed coatings in automobile engine block cylinders. Investigations were conducted on a steel-sprayed coating on an aluminum cylinder with intentionally produced adhesion flaws at the coating-substrate interface. It was shown that delaminations and disbonds were easy to detect. Furthermore, a typical optical design that allows the application of the technique on real engine blocks in a production site is also described.
ISSN:0169-4243
1568-5616
DOI:10.1163/156856104840525