No typo: same 1950F aust, about 30 minutes soak (less than 1 minute delta), same -40C freezer (about same soak time), same tempered temp.Thank you for doing this! I have one question. You list 3VC and 3VHi with the same Aus. temperature in your original post (1950F). Was this was a typo?
Maybe it’s just this steel that behaves like this. 3v does quite a bit better with a low temper. Same for ztuff. I did get more edge deformation with ztuff using a high temper. But i got an overall tougher blade from the high temper!I recently ran a batch of A8 Mod wth a slightly modified heat treat from what Ryan told me. I used cryo and a high temper and reached 60 Rc.
I have been testing an A8 Mod knife for the last week and yesterday compared it to a similar AEB-L knife. People often say fine edge stability suffers with a high temper, which is the case with some steels, but in this case I felt after carving on bone that the A8 Mod held up better than the AEB-L when looking at the edge under 100x microscope.
You got an overall slightly better "wear resistant" blade with the high temper, at the cost of some apex stability. The seconardy hardening of the higher tempers robs the steel matrix of carbon to form tempering carbides, which increases wear resistance (slightly, as they are VERY small carbides, increasing the overall carbide volume of the steel).Maybe it’s just this steel that behaves like this. 3v does quite a bit better with a low temper. Same for ztuff. I did get more edge deformation with ztuff using a high temper. But i got an overall tougher blade from the high temper!
But what I’m trying to figure out is why some steels seem to gain more toughness with the high temper! And some lose it. Larrins tests show a lot of steels gaining toughness with the low temper. But in tests I’ve done, ztuff and A8 gain much more toughness with a high temper!! But yes, you lose that apex stability!! Just a little it seems. I couldn’t detect a loss on A8, but ztuff was noticeable!You got an overall slightly better "wear resistant" blade with the high temper, at the cost of some apex stability. The seconardy hardening of the higher tempers robs the steel matrix of carbon to form tempering carbides, which increases wear resistance (slightly, as they are VERY small carbides, increasing the overall carbide volume of the steel).
And that’s also a reason why some people prefer a high temper on 3v, it seems like it cuts better in skinning rolls. I know big chris uses the high temper a lot!! Maybe you’ll get more rolling of the edge. But if you adjust edge geometry enough, you’ll get a mean skinner out of it!You got an overall slightly better "wear resistant" blade with the high temper, at the cost of some apex stability. The seconardy hardening of the higher tempers robs the steel matrix of carbon to form tempering carbides, which increases wear resistance (slightly, as they are VERY small carbides, increasing the overall carbide volume of the steel).
AKS has 1V in stockToughness is very similar to cpm1v. It just has a cobalt addition! 1v isn’t far off from h13. And asp2012 is a particle steel! I’d like to test it if I can get some. The plan is to get some for me and Larrin to test!
awesome, they told me it was coming but I was looking for it the other day and still didn't see it....AKS has 1V in stock
Just saw that. I ordered a bar to test. Thank youAKS has 1V in stock