Alloy banding / Carbide segregation

[stezann]

Very interesting discussion.
Wether or not these banding affects the cutting ability or edge holding to any noticeable effect, their appeareance as blade steel is amazingly beautiful, so worth pursuing.

 

[mete]

OT, Stefano, what did you do in the "old days" on the island ? Was there any source of iron or was it imported from the mainland ? How difficult is it to get blade steels to you now ?

 

[BluntCut MetalWorks]

I too found these patterns as candies for the eyes. As-shown level/severity of structure heterogeneous, I don't think it cutting performance degrade much (not noticeable). However impact/chopping performance would be much lower.

Very interesting discussion.
Wether or not these banding affects the cutting ability or edge holding to any noticeable effect, their appeareance as blade steel is amazingly beautiful, so worth pursuing.

 

[stezann]

OT, Stefano, what did you do in the "old days" on the island ? Was there any source of iron or was it imported from the mainland ? How difficult is it to get blade steels to you now ?

Our island is full of iron ore, i have a full bin of magnetite i collected, just in case some day i'll get the itch for smelting. I'll think of it when i'd get a real press or a powerhammer

 

[J W Bensinger]

Most of the 1084 I've used gets a wootzlike pattern in the unhardened section as well-often very fine, but fascinating nonetheless

 

[Willie71]

Hitachi Blue #2 with incredible banding.

[/url]IMG_0883 by Wjkrywko, on Flickr[/IMG]

[/url]IMG_0887 by Wjkrywko, on Flickr[/IMG]

 

[Don Hanson III]

Warren, that is very cool!

 

[Willie71]

I agree. It looks almost like wootz steel. I only have enough for 2 or three more knives though.

 

[billf]

Thermal cycled a bunch of times I'm guessing......?

Bill

 

[Willie71]

This one doesn't go away with normalizing or forging temps. I think it's the top center of the pour from the mill.

 

[kuraki]

What's this about?

1095. Don't remember doing anything out of the ordinary with the heat treat.

 

[Willie71]

^^^^^. I'm not even going to hazard a guess.

 

[kuraki]

Haha. I'd duplicate it if I could. It's cool as heck.

 

[Willie71]

Cru-wear (non pm) sanded at 220 grit. It's not heat treated yet. I'll post pics after heat treat to see if the segregation breaks up.

IMG_2223 by Wjkrywko, on Flickr


IMG_2222 by Wjkrywko, on Flickr