02-16-2018, 11:27 AM
Is it metal memory or oxidation or all the above? Its difficult to separate the two even when availing oneself of a very most excellent edge sharpness tester as manufactured by EOU. It would seem that the two can exist exclusive of each other or in combination. We've seen instances, as in several, where the sharpness of an edge can measurably decline progressively over the matter of a few minutes as in 10 - 20 - 30. We assumed this was due to metal memory. We have repeatedly seen how a brand new and unused DE razor blade, left out of it's wrapper over night can decline 10 - 20 points and this in "its a dry heat" Arizona. We assume this is due to oxidation. Obviously, a newly sharpened edge left out for some period of time could be subject to both effects.
At first blush, with me2's question concerning the effects on non-stainless we say "well sure it would" with regard to iron contents being likely higher in non-stainless. But then we thought, well maybe not. Maybe it's not that sort of oxidation. Knife guys, us included, like to think of oxidation as rust. There are all sorts and forms of oxidation though i.e. the build up that occurs on a copper surface, and many of these other oxidation forms are not destructive. So maybe stainless is subject to these other oxidation forms and non-stainless is not. Maybe rust isn't the culprit here.
As you can tell from this post, we at EOU have few answers, just more questions.
At first blush, with me2's question concerning the effects on non-stainless we say "well sure it would" with regard to iron contents being likely higher in non-stainless. But then we thought, well maybe not. Maybe it's not that sort of oxidation. Knife guys, us included, like to think of oxidation as rust. There are all sorts and forms of oxidation though i.e. the build up that occurs on a copper surface, and many of these other oxidation forms are not destructive. So maybe stainless is subject to these other oxidation forms and non-stainless is not. Maybe rust isn't the culprit here.
As you can tell from this post, we at EOU have few answers, just more questions.