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Technical Discussions
Saju
Saju
11:09 Apr-23-2009
Phased Array on Duplex Stainless Steel welds

Hi Eeryone,
I am looking for some practical advise on PA of DSS welds for piping. The thickness is
54 mm. I am intending to use a 2 MHz, L wave array probe. The weld reinforcement may not be ground flush. So how we can achieve full weld +Haz coverage , since mode conversion may occur after the Half Skip. Can I use information from Fullskip for sizing? Also what practical steps will minimise irrrelevant indications due to beam skew and mode conversion?....thanks

 
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