Can JTknives feel a bad HT when a knife is quenched?

[Randy3000]

• 00:12:41 - Nah... - I'm not kidding.
  
  
• 00:12:43 What's that new thing you got over there at Food 'N' Dry?
  
  
• 00:12:45 The crunch enhancer? That's a non-nutritive cereal varnish.
  
  
• 00:12:49 It's semi-permeable. It's not osmotic.
  
  
• 00:12:51 What it does is, it coats and seals the flake.
  

 

[Larrin]

I think there are still potentially simpler explanations than anisotropy effects from rolling. Difficult to say without having the steel to look at.

 

[Cushing H.]

Thanks larrin

 

[John mc c]

Ye I like cryptodiras too

 

[Stacy E. Apelt - Bladesmith]

 

[Mecha]

Once,many moons ago,i had a discussion with Grant Sarver and an older machinist gent from Australia on the subject of directional "grain" in rolled stock.(Both believed in it implicitly).
The Australian gent recalled being officially regularly inspected on this very matter while doing some Mil-spec forging in the yards during WWII.
Being an utter hick myself i was loath to doubt either of these very respected elders(rest in peace,Grant...),but with my own pea-brain i could neither understand nor account for anything of the sort.
Till some time later i came across a mention of how the crystallization takes place along the original dendritic structure(as a casting cools from liquidus);and any future re-crystallization similarly will be formed along those same sites(as distorted as it may become with any degree of deformation short of being brought back up to liquidus)...

So,is that what is meant by "forged grain flow"?...And if so,is this still a controversial issue?

It's related to the banter back and forth about forging steel, and whether the processes can improve a blade in some way, or whether "the best you can do when forging a blade is not make it worse." The discussion tends to up on grain flow and grain dislocations and refined grain size, etc. It's said that during annealing and heat-treatment in general, any changes in the billet are wiped out, and that in a knife, forging isn't going to have any positive effects on strength and mechanical properties. Since I'm concerned with swords, which are way longer and generally thinner than knives and are subjected to different stresses and forces, I have my own thoughts about the subject.