i bet not. you could easily verify with a sample and an acid etch.
without coolant it is not uncommon getting a thin martensite layer from grinding...the "quench" it is just the heat extraction from the mass of steel under the surface.
but for grinding under coolant, a martensite matrix won't be affected by work hardening as much as annealed steel...and even in that case most of those supposely work hardening ghost lines are in fact just carbide segregations even if the phenomenon could actually happen....i have never seen ghost lines other than lenghtwise, which should be odd since i don't know anyone who sands bowies lenghtwise with 80 grit
without coolant it is not uncommon getting a thin martensite layer from grinding...the "quench" it is just the heat extraction from the mass of steel under the surface.
but for grinding under coolant, a martensite matrix won't be affected by work hardening as much as annealed steel...and even in that case most of those supposely work hardening ghost lines are in fact just carbide segregations even if the phenomenon could actually happen....i have never seen ghost lines other than lenghtwise, which should be odd since i don't know anyone who sands bowies lenghtwise with 80 grit
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