Interesting, did you let it cool on its own or did you quench it in anything? I am curious if it will affect the lock bar in anyway, cracks or stiffness. Always fun to experiment!
Guys, please note this was a beat up cricket that was sitting in the back of my drawer.
I took the knife apart and did everything individually. As far as the "compromising of metal" I have no idea about any thing like that. I do understand that I might have done some internal damage to the metal but as said above was a beater and had nothing to loose. I went right over the serrated edge and it held perfectly.
It went back together as if I did nothing do it. All the screws threaded perfectly with no damage what so ever. Lock works just as brand new, but cannot tell in the future.
If you did the blade it most likely pulled the hardness way down. In the future I would leave the blade satin. The handle scales should be fine with the coloring.
If you are coloring something you can quench in water once you get the color you want. If you go past you can sand the oxidization off and start again.