The Root:
I am planning to renovate my kitchen knives collection.
Everyone is invited to have something to say.

In two weeks...

The F_Pastorelli
...the term "deep cooling" does not mean liquid nitrogen - I can't imagine what happens with the structure of steel after martensite...

The Bookworm:
The typical size of martensite structures can depend on the cooling speed, and therefore the properties of the clink.