LifeByA1000Cuts
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It's well known that some high grit stones (5000 to 10000) will leave very bright finishes (eg superstones), others will be rather matte (eg king 6000) with some being in-between (eg belgian blue).
It has often been mentioned that certain stainless steels lose some edge retention if finished at too fine a grit, because of "carbide tearout".
How is the finish a stone related to what it does to the carbides - intuition would say the brighter finishers grind them down and the matters ones leave them put/grind them out... but is it so? Also, can "ground down" leave them in a state where the bond to the matrix is weakened much due to repeated strain, like a half-loose tooth?
Also, do "torn out" carbides themselves act as low grit abrasives, and does this have anything to do with some steels always getting some new, coarser scratches even on a bright finisher?
Also, what influence does swarf from a harder part of the blade face have when grinding across a hazakai line or hamon?
It has often been mentioned that certain stainless steels lose some edge retention if finished at too fine a grit, because of "carbide tearout".
How is the finish a stone related to what it does to the carbides - intuition would say the brighter finishers grind them down and the matters ones leave them put/grind them out... but is it so? Also, can "ground down" leave them in a state where the bond to the matrix is weakened much due to repeated strain, like a half-loose tooth?
Also, do "torn out" carbides themselves act as low grit abrasives, and does this have anything to do with some steels always getting some new, coarser scratches even on a bright finisher?
Also, what influence does swarf from a harder part of the blade face have when grinding across a hazakai line or hamon?