Case Tru Sharp Pitting

I think I'll try salt next time, thanks for the suggestion. I've tried the hot (or at least warm) vinegar once based on something I read here on BF. Yes the reaction is definitely visible, with bubbles quickly appearing on the surface. Makes a nice patina.
 
knarfeng said:
A complete lack of oxygen in the environment is a bad thing for stainless steel. Putting stainless steel in a corrosive environment in which there is no oxygen can lead to depletion of the oxide layer on the steel. The oxide layer is what keeps stainless steel from corroding. Deplete it and your stainless steel is no longer stainless.

But you are correct. There is some interesting and complex chemistry which happens when you put any steel in a corrosive environment.
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It gets even more complex once a pit starts to form. Really strange things can happen in that confined area.
 
Any chance that could be inclusions in the steel that reacted differently to the process?

Joe
 
Loosely related, but I had a good old fashioned buck 110 pit once, because after I cleaned a deer with it I left it by the sink and my wife tried to disinfect it with some bleach. I was suprised to be sure. The knife is probably close to 10 years old now and it's fine. But I didn't think it would pit.
 
yablanowitz said:
It gets even more complex once a pit starts to form. Really strange things can happen in that confined area.
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Yes, seems reasonable that there would be a different, very localized environment and chemistry within the pits.

The Mastiff said:
Any chance that could be inclusions in the steel that reacted differently to the process?

Joe
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I think the inclusions idea crossed my mind. Makes sense that something could be leading to the pits forming in those specific spots.
 
W.M.B. said:
Loosely related, but I had a good old fashioned buck 110 pit once, because after I cleaned a deer with it I left it by the sink and my wife tried to disinfect it with some bleach. I was suprised to be sure. The knife is probably close to 10 years old now and it's fine. But I didn't think it would pit.
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Thanks -- more confirmation that SS isn't impervious to anything we want to throw at it!
 
I wonder if there would be a way to "coat" the blades when dying to prevent this?
 
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hughd said:
I wonder if there would be a way to "coat" the blades when dying to prevent tkis?
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That's certainly worth thinking about. My first reaction was some kind of wax, but the heat would soften that. Perhaps tape? Or a high-temperature grease or anti-seize compound?
 
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