simply I hammered/rolled wrought Iron into flats a little thinner than 1/8 inch thick, stacked them up. I added 0.30 thick15n20, pure.03 Nickel, and a little high carbon 1095 Shim stock .025 in between these layers.
So it started W,C,W,Ni,W,C,W,C,W,15,W or close to that for the layering. these shims are very thin, so basically its mainly just wrought iron, but the other metals give some dark bands, or lighter bands.
The client wanted the hardware for this blade to look like branches of trees. rather than the cut wood effect. MY first thought was simple wrought iron, but I decided to add some shim stock to add depth of color. To add in this illusion, I plan to carve the bar when its still 2x over size, with my dremel tool cutter, then finish hammering to shape, Like when doing a ladder pattern but running the length rather than across, and not parallel, but intersecting like with natural tree bark. Revealing colors as well as textures with the acid bath. Will post when I finish, there is noting to really see until then with this pattern welded stuff.
maybe its over kill, but I push to come up with my various pattern welded patterns. and not every thing is a blade edge. there are many other uses for damascus.