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fracture toughness Kc of martensitic stainless steel X5CrNi13-4
2

fracture toughness Kc of martensitic stainless steel X5CrNi13-4

fracture toughness Kc of martensitic stainless steel X5CrNi13-4

(OP)
Hi,
excuse me if this question has already been asked,

I'm looking for the fracture toughness "Kc" of the martensitic stainless steel X5CrNi13-4 (forged), possibly for several different field types (e.g. "center cracked plate in tension", "single-edge crack in tension", and so on).
Any good sources? Sources where to find data for the Paris law of this material?

Thanks in advance,

Regards

RE: fracture toughness Kc of martensitic stainless steel X5CrNi13-4

2
Alternately your alloy is very close to CA6NM and lot of data is available for this alloy. You may refer

 SFSA Castings Handbook Supplement 8, High Alloy Data Sheets Corrosion Series.

http://www.sfsa.org/sfsa/pubs/hbk/s8.pdf

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RE: fracture toughness Kc of martensitic stainless steel X5CrNi13-4

(OP)
Hi,
thank you very much for your kind help!
The info is needed in order to determine the critical defect length in a zone of a part subjected to very high stresses, in order to check if the radiographic + ultrasonic controls can detect such kind of defects. On the other side, I have to determine the crack growth speed of a crack having a length equal to the minimum which can be revealed by the tests. The part is subjected to "Class 1" acceptability criteria.

I already googled with no good results, but probably my search-keys were different. The idea of looking for CA6NM is very valuable, thanks!

Regards

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