San-Mai 13!

amacks

amacks

Gold Member
Joined
Oct 13, 1998
Messages
674
this came to me while studying for a final:
Make a blade which is layered (outside to edge) 1040,1050,1060,1070,1084,1095,52100. Then repeat the other way for the other side. When etched, it might produce a cool color gradiant from dark middle to light edge.
Aaron
ps or has too much dining-hall coffee melted my brain

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aaronm@cs.brandeis.edu
I like my women like I like my knives: strong, sharp, well-formed and pattern-welded!
 
Aaron...

One suggestion, try Decaf...
smile.gif


Why so many layers of all carbon steels?

Why not start with an outside layer of pure nickel and do the same thing with a different content of nickle in each layer, giving it a silver to black fade??
smile.gif


Alan...
 
Actually I didn't know there were that many types of nickel-steel. I assumed there was pure nickel, 15n20 and that's about it.
Aaron

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aaronm@cs.brandeis.edu
I like my women like I like my knives: strong, sharp, well-formed and pattern-welded!
 
That is a trooly strange idea ... I wonder what they put in that coffee.... A gradual color gradient wouldn't be as striking as sharply contrasting adjacent layers -- it would be subtle rather than striking. I'm not sure if I would like it but I think I might like it a lot. I'm not set up to try making a blade like that myself -- I hope somebody gives the idea a try.

-Cougar Allen :{)
 
Gentle posters; you may wish to peruse the website kindly provided by Adam:

http://www.dfoggknives.com/contrasting_steels.htm

Don Fogg will explain at this site, exactly what element governs color in pattern welded steel, and why Ni is NOT a good element to use. Check it out, Walt
 
Thanks for the info, but I don't think that the nickel would pose a problem in the outermost layer of a san-mai type steel. The nickel layer would end at the beginning of the blade grind, and so never affect the edge.

Although perusing the site, it seems that more than the carbon would have to change to vary the color, maybe similar steels with varying Mn content.
Aaron
ps and now the challenge, some smith out there, try welding up a stack(either full 1040-1095-1040 or only hald 1040-1095) and tell us the results. I'll cover the cost of steel if you contact me.

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aaronm@cs.brandeis.edu
I like my women like I like my knives: strong, sharp, well-formed and pattern-welded!
 
Just one question, if you were to use nickel for the outside layers wouldn't it also give your knife great corrosion resistance? If my memory serves me correct in these old ages nickle is pretty stain resistant isn't it?

Sincerely,
Adam

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Cut open a mans box and he will be happy for a day. Teach him to cut and he will be happy forever.
 
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