Ultrasonic scanner for stainless steel weld inspections. [LMFBR] [report]

D. S. Kupperman, K. J. Reimann
1978 unpublished
NOTICE Tis report was prepared as an account of work sponsored by the United States Governe;t Neithe t United States nor the United States Department of Fnar. n or any of their employees, nor any of their conracora, sbcontracto or their employees, sakes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness or usefulness of any information apparatus, prodsc or process disclosed, or reprnsets that its use would not infringe privately
more » ... ringe privately owned rights. September 1978 R.et: r., , . sc Ue frm u .4 ABSTRACT The large grain size and anisotropic nature of stainless steel weld metal make conventional ultrasonic testing very difficult. This paper evaluates a technique for minimizing the coherent ultrasonic noise in stainless steel weld metal. The method involves digitizing conventional "A-scan" traces and averaging them with a minicomputer. Results are presented for an ultrasonic scanner which interrogates a small volume of the weld metal while averaging the coherent ultrasonic noise. I.
doi:10.2172/6560588 fatcat:sm5ocj76xnd5xiqbe3zb3v5bn4