| Issue |
MATEC Web Conf.
Volume 144, 2018
International Conference on Research in Mechanical Engineering Sciences (RiMES 2017)
|
|
|---|---|---|
| Article Number | 02016 | |
| Number of page(s) | 7 | |
| Section | Materials Science and Engineering | |
| DOI | https://doi.org/10.1051/matecconf/201814402016 | |
| Published online | 09 January 2018 | |
Case study on water based cellulose couplant in contact type ultrasonic testing
1
Department of Mechanical and Manufacturing Engineering, Manipal Academy of Higher Education Manipal, India
2
School of Engineering and IT, Manipal University, G04, PO. Box: 345050, DIAC, Dubai, UAE
* Corresponding author: b_shivamurthy@yahoo.co.in
In this paper the ultrasonic test performance of water based Methylcellulose couplant on steel is reported. The couplant used in the ultrasonic testing has an influence on the amplitude of the pulse echo signal. The ultrasonic energy which is transmitted from the transducer to the test material, through the couplant which is present in the interface. The amplitudes of back wall echo increases with increasing acoustic impedance of the couplant. In this research work couplant was prepared by using 0 to 50g of methylcellulose in steps of 10g in 250 ml of water. All five types of water based methylcellulose couplant were used for testing a standard stainless steel calibration U2 block. The effect on the amplitudes of back wall echoes was studied and best possible combination of water and methylcellulose are reported.
Key words: Couplant / Amplitude / Ultrasonic Testing / Methylcellulose
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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