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I daydream alot, and the past months the dreams have been dominated with crucible steel. I have plans to give it a try this summer, but I'm also thinking about improvements. This question is about one of these future improvements. For starters I'm gonna let the ingot cool in the crucible. But every video I've seen with this approach has given large dendritic structures, which might be desirable for Wootz, but I don't want 'em. I saw Ric Furrer in the Ulfberth documentary, and although I don't think the word Wootz was mentioned, the steel sort of behaved like I've heard Wootz would, in that you have to "nudge" it gently initially. So the plan eventually is to make a pour. Also this could give a more suitable size and shape for forging. Could someone point me in the direction of some litterature on the topic, containing some info on cooling rates vs. dendrites and also segregation?
I've been asking myself what I would use to up the Ni in crucible steel if I wanted to make my own high contrast crucible steel damascus. I'd like something high in Nickel, and low in everything else, so I was looking at SAE 2515. In what kind of applications would this be found as scrap? Roller bearings? Other suggestions? I doubt I can find any FeNi or pure Ni locally. And I haven't been struck by any meteorites lately. We are the knights who say Ni!
so since I am on holiday I started a redo on my wootzsmelter, after working in the garden. It is my old smelter, made from an 11kg gasbottle, following a design I got from Achim Wirtz here in Germany it was a bit "nifty" as Niko once said, very narrow for an A1 crucible, so I want it to be bigger in the "heatroom" which should give me less trouble with the heat for the melts for that I took out some of the casting - had to hammer it out with some effort - finding that I made the walling very thick, some pieces where thicker than three - four centimeters out came over 11kg, much more than I thought the wool is still in good shape, so that can stay, the bottom is still ok and the pipe gives a tangential flame to the bottom of the crucible, there is anough space to use some stands, too I found an old bottle that will make for the inside, it is big enough to give the space for my crucibles (Achim said: a double-magnum redwine bottle will do the trick, too) more in the next days