Photos Give me some good news...

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Apr 10, 2020
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1095 billet grinding project. So I noticed these little pits show up during the early shaping phase of the project (not the tool marks, but the dark spots running parallel to the blade). Obviously very significant, but I was curious that maybe normalizing the billet would smooth out any grain deformities. Normalized 3 times and it seemed to work - pits ground out and no more revealed themselves. I finished shaping, hardened and tempered the blade an bam, the pits are back. What are they? Is this blade just a failed science experiment, or is it somehow salvageable? It wasn't inexpensive steel, but I feel like I might have been grifted with some cheap Chinese scrap. A lot of y'all know a hell of a lot more about this stuff than me. Thoughts?

92818166_2715982085393881_2263741557934915584_o.jpg
 
Looks to me like inclusions in the steel,dirty steel
I've only ever seen pits like that in working with old leaf springs
Maybe someone will know better
 
Just for curiosity, it could be worth trying to etch it. If you don't have Ferric Chloride, a coffee etch could show something.

What I'd be looking for is if there is a uniform darkness throughout or if there are splotches.

To go outside my depths: splotches could suggest, 'bad steel' with impurities in it, or a mislabeled steel. Maybe something akin to carbide banding where things are clumping together during hardening.
 
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