Another San Mai

[Karl B. Andersen]

Hope ya'll appreciate this one.
Interesting what drawing dies can accomplish:

[Jeremy]

That's a pretty interesting effect. Is the "shadow" moving up the 416 carbon migration? Also, for the black color of the W2, I'm assuming you just left the oxides on after etching? Out of curiosity, do you know how long it will keep that dark color? As the oxides come off, will there still be a relatively distinct transition line between the two steels? Looking forward to this one finished out.


Jeremy

[Karl B. Andersen]

Jeremy, yes I believe that is carbon migration. I've got a chart that shows carbon at .10% migrating about .019" per hour at welding temp of 2200 degrees.
I etch 2-3 times for about 30 seconds each and scrub between. It keeps getting darker and darker.
Right now it is difficult to even rub the oxides off! I'm sure that with use, it will minimize some, but the difference will never go away. The W2 will acquire its own patina and the stainless will always be stainless.

[jim poling]

Wow! Karl that is amazing.

Jim

[Dave Armour]

cool blade- love the "shadows"