Cryocycling and its effects on strength? 1

[GotPancit]

I've googled as much as I can and can't find any information on the cryocycling material (mainly cast inco 718, and a-286) and it's effects on material strength.

Does cryocycling make the part weaker, stronger, or nothing?

thanks

 

[GotPancit]

nobody?

 

[iainuts]

Hi Got. Have you tried searching the forum for similar threads? I've seen quite a few threads about this topic, but I'm no expert.

 

[Frederick]

At most you will see a modest increase in the tensile strength. It will relieve some residual stresses, and has an affect on the high cycle fatigue life. It also will increase the wear resistance. For a list of research articles on cryogenics go to

http://www.cryogenicsociety.org/publications/cold_facts/current/cryogenic_processing_articles.php