Thursday, September 6, 2012

RE: Re: [MW:15235] Nozzle to Shell NDT Method

For Vino Varghese:

 

As per your comments about using RT instead of AUT for dissimilar metal welds, Olympus NDT has done some development work on AUT for inspection of DMW. Nobody is claiming that DMW are easy to inspect, but RT really has major issues with DMW. The attached paper gives guidelines on how to set up a valid AUT inspection program.

 

There are a number of steps, with the first step being to use standard shear waves, then longitudinal waves, then dual probes, then finally TRL-PA. In addition, practical work was performed on actual DSW samples in service (see the ASNT paper).

 

Yours,

Michael Moles

Senior Technology Manager

Olympus NDT | 48 Woerd Avenue | Waltham, MA 02543| USA 

Tel. (1) (416) 831 4428 | Fax (1) (905 248 3546  | Cellular (1) (416) 831 4428 www.olympus-ims.com

 

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