Could you be more specific about your query:-
· Underclad Cracking Test— is it related to SAW strip cladding of S.S / Inconel on Reactor Pressure Vessels (RPV) shells. What kind of reheat cracking tests you have to do? Usually reheat cracking is very difficult to simulate.
· Regarding hydrogen cracking, there are standard tests developed and adopted by the industry. If you are familiar with Tekken Y-Grove test, it's a very popular test for hydrogen cracking. What's the test you're asked to perform in this case.
However underclad hydrogen cracking is a bit different issue. Typically it's commonly performed as autoclave testing, and ASTM –G-146, is the standard followed for this underclad hydrogen disbanding test.
Due to copyright issue, I can not post the ASTM standard. However the attached article tells clearly how this test is performed.
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From: email@example.com [mailto:firstname.lastname@example.org] On Behalf Of PREM SHANKARDUTT NAUTIYAL
Sent: Wednesday, January 27, 2010 1:20 PM
Subject: *****SPAM***** [MW:4160] Underclad cracking tests
Can anyone provide some article / explanation / detailed procedure about how to prepare specimens and conduct test for the following Underclad cracking test ---
1)Weld specimen for reheat cracking.
2)weld specimen for Hydrogen induced cracking.
The job is a PV, code of construction is ASME Sec III, NB.
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