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535 views
00:03 Dec-04-2000

john williams

NDT Inspector
United Kingdom,
Joined Dec 2000
5
root assessment of 4mm wall pipe

Is it possible to assess the root of 4mm wall thick pipe with a 10mm wide weld reinforcement using conventional a-scan equipment


 
00:17 Dec-04-2000

Mark Davis

Teacher, And Consultant
University of Ultrasonics, Birmingham, Alabama,
USA,
Joined Mar 2000
83
Re: root assessment of 4mm wall pipe Yes, one consdieration would be to use a time of flight focused shearwave probe at about 70 or maybe 75 degrees.

You did not state the maetrial type. If an austenitic material, then focused L wave using TOF may be necessary.

Calibration would be a block of similar material with side drilled holes at 1 mm depth.

What is the damage mechanism you are looking for???

Cracks, corrosion???

Sincerely,

J. Mark Davis

: Is it possible to assess the root of 4mm wall thick pipe with a 10mm wide weld reinforcement using conventional a-scan equipment




 
02:45 Dec-04-2000

john williams

NDT Inspector
United Kingdom,
Joined Dec 2000
5
Re: root assessment of 4mm wall pipe : Is it possible to assess the root of 4mm wall thick pipe with a 10mm wide weld reinforcement using conventional a-scan equipment. The material is mild steel





 
03:26 Dec-04-2000

Mark Davis

Teacher, And Consultant
University of Ultrasonics, Birmingham, Alabama,
USA,
Joined Mar 2000
83
Re: root assessment of 4mm wall pipe What type of damage mechamism are looking for. Cracks Corrosion???

: : Is it possible to assess the root of 4mm wall thick pipe with a 10mm wide weld reinforcement using conventional a-scan equipment. The material is mild steel





 


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