The impact of Delta Ferrite on the workability of Martensitic SS
The impact of Delta Ferrite on the workability of Martensitic SS
(OP)
Is there a curve or calculation that can quantify the effect delta ferrite has on the propensity of cracking during deformation working processes (riveting for example). I am reviewing report that states that a higher amount of delta ferrite indicates a higher propensity for material cracking during this type of processing, but I cannot find any indication of how this is quantified.





RE: The impact of Delta Ferrite on the workability of Martensitic SS
Normally in hot working austenite which stainless 10% ferrite is where things start to go bad.
RE: The impact of Delta Ferrite on the workability of Martensitic SS
In austenitic stainless you usually need some ferrite for hot working or you will get cracking on cooling, but too much will kill you too.
mcguire hit it on the head though. Even if you could find working/cracking curves morphology would be the big variable.
= = = = = = = = = = = = = = = = = = = =
Corrosion never sleeps, but it can be managed.
http://www.trenttube.com/Trent/tech_form.htm