Titanium coated drusy set in sterling silver that is roll patterned. Titanium "bead" coils colored by heat treating. Freshwater pearls.
Chart of junk yard steels. Good information to keep on hand for heat treating / quenching
I've written a little piece on hardening steel. I did it in such a way that anyone could understand. No big metallurgical terms http://deepwoodsventures.com/en/content/26-heat-treating-simplified
heat treating steel
How to heat-treat an O1 knife blade using cheap common tools. - YouTube
Rick Eaton, Model 15 mosaic damascus blade with blued frame that has been engraved and multi colored heat treated
De acordo com a cor que o aço atinge, seguindo essa escala se tem a idéia quase exata da temperatura que é capaz de chegar uma forja dentro dos processos térmicos necessários pra que seja feita uma "simples" faca.
Homemade heat treating oven constructed from angle iron, sheetmetal, and firebricks. Equipped with a PID temperature controller, 2 solid state relays, and nichrome heating elements
Smith & Wesson 21 inch Heat Treated Collapsible Baton, Nylon Pouch