Journal of the Korean Society for Nondestructive Testing (비파괴검사학회지)

The Korean Society for Nondestructive Testing (한국비파괴검사학회)
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Ultrasonic Examination of Thick Austenitic Stainless Steel Welds and Factors Influence the Sensitivity

  • Palaniappan, M. (Quality Assurance Division, Indira Gandhi Centre for Atomic Research(IGCAR)) ;
  • Subbaratnam, R. (Quality Assurance Division, Indira Gandhi Centre for Atomic Research(IGCAR))
  • Published : 2003.08.30
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Abstract

The problems encountered by ultrasonic testing of austenitic stainless steel weld joints are discussed in the paper. Due to low thermal conductivity and the occurrence of single phase between the melting point and the room temperature, coarse and oriented grains are formed in such weld metals more in thick sections. This leads to higher scattering at the grain boundaries and low signal to noise ratio, and extensive beam skewing. Experimental results to understand these problem are explained.

Keywords

References

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  2. H. W. Corsepius, 'The Ultrasonic Testing of austenitic welded joints', booklet from M,S. Krautkramer, Germany
  3. Ogilvy. J. A, 'Ultrasonic beam profiles and beam propagation in an austenitic weld using theoretical ray tracing model', Ultrasonics 24(6), pp. 337-347, (1986) https://doi.org/10.1016/0041-624X(86)90005-3
  4. J. A. Ogilvy, 'The influence of austenitic weld geometry and manufacture on Ultrasonic Inspection of welded joints', British Journal of NDT, pp. 147-156, (May 1987)