M2 tool steel carbide pullout or nonmetallic inclusions?
M2 tool steel carbide pullout or nonmetallic inclusions?
As the dark spots are co-mingled with the carbides and follow the same distribution pattern, I think they are pull-out. You could probably verify this if you can put the mount on an SEM.





RE: M2 tool steel carbide pullout or nonmetallic inclusions?
RE: M2 tool steel carbide pullout or nonmetallic inclusions?
I don't mean to cross post but what might be an adverse effect (if any) of high manganese level in an M2 tool steel? From my photos, I can clearly see inhomogeneous microstructure/segregation and wonder if maybe the excessive manganese could be a contributor to this.
RE: M2 tool steel carbide pullout or nonmetallic inclusions?
High Mn is absolutely a contributor to segregation. Slightly higher austenitzing temperature may help you to reduce segregation. But you don't want huge grain either.
RE: M2 tool steel carbide pullout or nonmetallic inclusions?
RE: M2 tool steel carbide pullout or nonmetallic inclusions?
RE: M2 tool steel carbide pullout or nonmetallic inclusions?
Is there any online literature available that would further explain exactly how an increase in the amount of Mn (in this case M2 tool steel) would contribute to segregation? I would appreciate any references to help with my own education.
RE: M2 tool steel carbide pullout or nonmetallic inclusions?
I did an search by "manganese and segregation" and found a bunch of scholarly articles. Don't know any classic books covering this.
RE: M2 tool steel carbide pullout or nonmetallic inclusions?
Maui
RE: M2 tool steel carbide pullout or nonmetallic inclusions?
RE: M2 tool steel carbide pullout or nonmetallic inclusions?
h
If you scroll down after clicking on this link, you'll be able to look at the contents of the book.
Maui
RE: M2 tool steel carbide pullout or nonmetallic inclusions?
http://www.asminternational.org/portal/site/www/
Maui