Alex Topfer
Basic Member
- Joined
- May 1, 2019
- Messages
- 531
Hey
I was poking around looking at knife designs, and came across this quote: "The blade has been made from a Dark San Mai billet handforged by [smith] from 80crv2 and 1080+ with a sandwiched nickel shim to prevent carbon migration"
Carbon migration/diffusion is just a diffusion process that occurs when the steel is hot enough that carbon is able to move through it, right? Specifically an atomic diffusion process
So it seems to me that you wouldn't need to worry about carbon diffusion between 1080 and 80crv2 as the steels are about the same carbon content, so the net diffusion between the two is going to be minimal.
Or does the presence of the chromium and vanadium on the 80crv2 affect the diffusion sufficiently that it will lead to a diffusion gradient? I wouldn't have thought they would make that much of a difference, mostly just making the carbon less able to move through the steel which wouldn't really affect this.
Clearly we are in the realm of doing stuff because it looks cool, so that's probably the real reason
I was poking around looking at knife designs, and came across this quote: "The blade has been made from a Dark San Mai billet handforged by [smith] from 80crv2 and 1080+ with a sandwiched nickel shim to prevent carbon migration"
Carbon migration/diffusion is just a diffusion process that occurs when the steel is hot enough that carbon is able to move through it, right? Specifically an atomic diffusion process
So it seems to me that you wouldn't need to worry about carbon diffusion between 1080 and 80crv2 as the steels are about the same carbon content, so the net diffusion between the two is going to be minimal.
Or does the presence of the chromium and vanadium on the 80crv2 affect the diffusion sufficiently that it will lead to a diffusion gradient? I wouldn't have thought they would make that much of a difference, mostly just making the carbon less able to move through the steel which wouldn't really affect this.
Clearly we are in the realm of doing stuff because it looks cool, so that's probably the real reason
