Influence of material coating on stress measurement by ultrasonic surface wave (part 1)

Conference proceedings article

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Publication Details

Author list: Preedawiphat P., Prateepasen A., Noipitak M.

Publisher: Trans Tech Publications

Publication year: 2013

Volume number: 717

Start page: 227

End page: 232

Number of pages: 6

ISBN: 9783037857274

ISSN: 1022-6680

eISSN: 1662-8985

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84882943214&doi=10.4028%2fwww.scientific.net%2fAMR.717.227&partnerID=40&md5=842e2ee4d7f459b4d6475e8fe9006920

Languages: English-Great Britain (EN-GB)

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Abstract

Ultrasonic surface wave have been implemented to measure or predict the existing stress on material. Surface wave velocity shows linearly increase with stress applied in material. However, various applications were coated their surfaces with high corrode resistance material for example paint or aluminum thermal sprays. It may cause the change of the velocity of surface wave and lead to miss prediction. This paper presents the effect of material coating on surface wave velocity and its attenuations. Paint and Aluminum thermal spray coated on low carbon steel graded S420 (EN 10025 Standard) in the range of 100-500 micron. Through transmission ultrasonic surface wave was applied to measure the velocities change. Their frequencies are 2.25 and 5 MHz respectively. It was found that coating thickness show effect on sound velocity and sound wave attenuation. The benefit is to know the effect of coating and to approve the accuracy of stress measurement by ultrasonic wave. ฉ (2013) Trans Tech Publications, Switzerland.

Keywords

Coating surface