is this normal for O1 steel?

W

wolffire00

I sharpened this knife on japanese water stones exactly 24 hours ago and immediately covered the steel in oil. Now this has built up near the edge on both sides. I'm wondering if that's normal, or possibly something I did to cause it.

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It's not normal. Even if you don't oil it that shouldn't happen. Somehting had to cause that. That looks like it was in contact with something corrosive. Did you put it in a wet sheath of something.
 
I don't know what MAAS polishing paste is but make sure it's not corrosive. Did you dry off the water before oiling it? I think that's what SouthernCross was asking.. You had to have done something. The steel won't do that on it's own in 24 hrs.
 
As their name suggests, Japanese water stones generally require a touch of water to produce the slurry that provides the abrasive to sharpen.

If the steel was still wet (with water), then the oiling would not have made contact with the steel that still had a layer of water on it (remember oil will float on water).

I would think that if you had dried the steel after sharpening then oiled it, you would not have had this occur as the oil would have been able to coat the steel and prevented the corrosion shown in the pic.

Just my thoughts, although I could be wrong.



Kind regards
Mick
 
I wonder whether something highly corrosive, like salt, got on to your stones and didn't get wiped off when you dried the blade? Maybe you should wash the stones carefully?

I would use Flitz and 0000 steel wool, then sharpen again.

DancesWithKnives
 
DWK2 said:
I wonder whether something highly corrosive, like salt, got on to your stones and didn't get wiped off when you dried the blade? Maybe you should wash the stones carefully?
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After you sharpened, rinsed and wiped the blade (you wiped it, right???) there shouldn't be anything left on the blade.
I'd vote it wasn't dried properly in which case it would be normal. Maybe it got condensation on it which could cause that.
If it wasn't that that's not normal but I can't see any manufacturing defect that could cause that.
 
I don't really know but I will venture a guess. It appears that the rust is at the edge of the blade because water was trapped in those edge grind marks after it was wiped down, then when oiled, water and oil flowed to the lowest point of the knife laying on its side which would be the edge with the blade laying of a flat surface. The edge grind wasn't in contact with the sheath. Notice that the polished parts of the knife didn't rust. Polish it out with some Flitz or semichrome and you should be O.K. Just my thinking.
 
To be honest I have often had mixed results with oiling. On some occasions, oddly, results seemed worst than using nothing. What type of oil did you use?
 
SouthernCross said:
As their name suggests, Japanese water stones generally require a touch of water to produce the slurry that provides the abrasive to sharpen.

If the steel was still wet (with water), then the oiling would not have made contact with the steel that still had a layer of water on it (remember oil will float on water).

I would think that if you had dried the steel after sharpening then oiled it, you would not have had this occur as the oil would have been able to coat the steel and prevented the corrosion shown in the pic.

Just my thoughts, although I could be wrong.



Kind regards
Mick
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That would be my guess too.

I've had blades I wiped off but didn't oil that still had some moisture that got rusted. Not that much but some.
 
Also, I think this is a great time to point out that corrosion is a natural process, and even with the best care and maintenance, a fact of steel, especially high carbon steel without 13% or better chromium.

So, make a plan, solve it, and then next time it happens, you will be ready.

Marion
 
I suggest using a strop with a bit of whatever oil you are using on it. While the blade was wiped its hard to get down at the very edge..you just sharpened it so it would be reasonable that the very edge didnt get completley cleaned because you were keep your fingers away from that razor edge. a few strokes on a strop will/would fix it right up. that will remove corrosion but the steel underneath may still have dark coloration..shining it may require something like flitz metal polish.
 
Marion David Poff said:
Also, I think this is a great time to point out that corrosion is a natural process, and even with the best care and maintenance, a fact of steel
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Yep, on the other hand I once lost a mora in garden during whole autumn.
When I found it back it plenty of rust spots but I was able to restore it without much trouble.
 
Another way to ensure the knife is dry before oiling is to give it a wipe down with some alcohol (eg alcohol wipes/skin preps) which will allow the blade to quickly air dry.



Kind regards
Mick
 
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