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Technical Discussions
BODDU PRADEEP
NDT Inspector,
India, Joined Feb 2016, 31

BODDU PRADEEP

NDT Inspector,
India,
Joined Feb 2016
31
05:54 Nov-21-2016
UT Angled compression probe

For what applications we use angled compression probe?

    
 
 Reply 
 
Nigel Armstrong
Engineering, - Specialist services
United Kingdom, Joined Oct 2000, 1096

Nigel Armstrong

Engineering, - Specialist services
United Kingdom,
Joined Oct 2000
1096
06:49 Nov-21-2016
Re: UT Angled compression probe
In Reply to BODDU PRADEEP at 05:54 Nov-21-2016 (Opening).

One frequent use is for the inspection of coarse-grained austenitic weldments.

Use of the search function on ndt.net will provide much detailed information

    
 
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Daniel Braun
Daniel Braun
09:27 Nov-21-2016
Re: UT Angled compression probe
In Reply to BODDU PRADEEP at 05:54 Nov-21-2016 (Opening).

1. TOFD - with 2 compression wave angle beam probes

2. PE - inspection of the coarse grain materials, f.e., austenitic welds, half skip inspection only while using single element angle beam compression wave probe

3. In case of emitting compression wave at an angle there is shear wave emitted as well and starting from some incidence angle it exceeds the compression wave emitted by the energy, this allows to utilizing of the mode conversion due to reflection of the shear wave at the far (bottom) surface and have quite strong compression wave propagating from there towards the near surface at an angle - this is used in some advanced inspection techniques

4. etc

    
 
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