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Steve Sells

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Posts posted by Steve Sells

  1. Just a fast comment about no one pasting here in a while, Unless I am really confused, this category did not exist until a few days ago. These existing threads were pulled from the others, to clean things up.

    So bluntly, you get credit for the FIRST intentional post to this one ! :D

  2. That is what the ground wire is for. Check to see if its hooked up, if it is then maybe your receptacle isn't grounded.

    But if ALL of your rollers are rubber or some other non conductive material, then any static generated by the belt has no where else to go, except for you.

  3. Make my living as a Union Electrician, and Teach Jujitsu.

    I volenteer with Emergency responce team as EMT with American Red Cross, also write and play Bass guitar for blues/rock band with a little keyboards, Hunting Fishing, also keep tropical fish, son's hamster and A dog, play with the SCA, need to build a new motorcycle.

  4. where did you get the idea that nickel does not resist etching , or that only carbon can etch?

    if that was true, then forget most stainless steel pattern welding. I assume all steel can be etched with enough time to a strong enough acid. That is not the point, as I thought you understood, but I have been wrong before.

  5. I said nothing about Nickel migration, nor any other of the more common alloys. So I will now state that while they do migrate/diffuse, they do so at such a slow rate, they basically stay in the layers they started in. While the carbon moves quite fast, as the steel gets hotter.

    The contents of steels vary with each mill, and each batch vary a bit also. So many report a range of contents, which is why its recommended to get a mill sheet for each batch we get.

    But generally this test in question used a sample of A203E with C 0.14 Mn 0.58 Ni 3.43. W-2 has no nickel lending that layer a dark color, while the Nickel of the A203E shows no appreciable diffusion, therefore remaining in the A203E layer leaving it bright.

  6. Having made a few blades myself, I like seeing more people interested in blade work. Welcome to I Forge Iron.

    We have a life knife chat, Friday night at 10 pm Eastern time. Hope you can join us, if not, its usually reposted after editing out the entry/exits and nonsense like that, in the knife area of these forums.

  7. welcome to I Forge Iron, We have rehabilitated a few tin knockers in the past, so I am sure we can help you too. Electrician here. Have fun, as there is a lot of stuff here, it can be a bit over the top. Your past experience will be a help to you here, kind of a jump start to metal work :) Glad you have you join us.

  8. We are ok for now, because of the newly (4 years ago) raised dikes. But the neighborhood is closed off from most of the rest of the world, because of those same dikes. Part of the solution for our past flooding issues for the water here include barricades that install across the roads to seal the dikes another 5 foot elevation. I may have sand bag duty today. The call has not come yet.

    Our area is at the junction of 3 rivers, and as such only one lane for traffic remains in/out of neighborhood, and its under a bit of water too. Good thing we have a jeep.

    Such is life in a flood plain....
    update: we are close to the 24 1/2 foot mark, 15% of the city is under water now. 17 ft is flood stage, the record was 26.

  9. ok that was a interesting read! it explains why a nickle damascus shows much better than a non nickle ... but why if the carbon is the same (and therefore hardness ) does the non nickle damascus even show a pattern in a etch? what is the difference ? why does the acid react differently to one section than the other? i know a mild /wrought iron and hi carbon blade will show pattern in a etch ...why?


    Because carbon isn't the only thing that effects etching. High Mn content when etched is black, so in an 1010/1095 mix its the Mn making the difference in the layer colors. also WI has silicon, there are many things that react, or protect from etchant 's action. carbon is only one of those. even a mono steel ., like Tamahogane or cable, has the exposed areas where carbon is lost to atmosphere. more complex than a simple 2 page report can explain, but this is short enough for most people to follow.

  10. OK, I need Jim Hrisoulas to explain this to me. The use of acid to etch a metallurgical specimen dissolves the IRON and leaves the CARBON replica in place. High carbon areas etch dark and low carbon areas etch light. If the carbon diffuses and homogenizes, what causes the banding? Microstructure? Pearlite is iron carbide in a ferrite matrix and it etches dark. Ferrite has basically zero solubility for carbon so it etches light. But in a pattern welded blade, the carbon content is the same all over so there should be no inhomogeniety in the iron based structure. It should all etch the same. And if the carbon diffuses into the Nickel, why does the nickel still etch white? Inquiring minds want to know.


    Carbon does not diffuse into or bond with nickel as it is not a carbide former, but 204E is not nickel , its a steel alloy that contains some 3.5% nickel tho, there is a difference.
  11. I have brought up this topic a few times in the knife chat, Here is a simple to under stand paper, with photos, short and to the point. http://asmcommunity.asminternational.org/static/Static%20Files/IP/Magazine/AMP/V167/I02/amp16702p24.pdf?authtoken=cb31535fc425fd4bcb22e182921e2963ed861895 This not only show carbon migration in the first fold, but also to clear up the the fact of the addition of even 4% nickel to an alloy is not enough to stop migration, While nearly pure nickel will, the roughly 3.5% content of A203E is less than is needed for that.

  12. Dodge, FYI the ITC-100 does NOT go over the inswool, its only to be used as a top coat, the inswool still needs to be sealed first. So you wont need as much of the expensive stuff after all, if you decide later to add it, so Go have some Soup. :D

  13. tough call. Titanium can be either heat or electro-colored, even to a green but it won't keep a good edge, no where near good enough for a shaving razor that will be used. as for good steels ? Sorry.

    where did this guy get that idea anyway?:confused:

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