bearfacedkiller wrote:I am curious about steels that combine both carbon and nitrogen. What is the reasoning behind that and what are the advantages and disadvantages?
I was looking at various steels and came across Vancron 40 Superclean.
It has the following composition:
What can we speculate about the properties of this steel? Could it be a viable blade steel? The data sheet states that it has high adhesive wear resistance which I do not think is needed in a blade but I assume is should also have abrasive wear resistance as well. I guess I am mostly wondering about the combination of carbon and nitrogen.
Darby, that's a sweet looking steel.
High speed nitrogen carbon steel? Whaaa?! Crazy, looks like they are advertising it as a HSS that doesn't need a PVD coating to prevent different types of industrial machine wear, idk about that for knives, not our focus, but that doesn't mean it wouldn't make a sweet blade based off its chemistry and other attributes from the nitrogen.
Looks like it can hit high hardness, dang, 65 hrc and up just like other precipitation strengthening tool steels with high Aus. temps and high tempers
The composition reminds me of a M4/k390 hybrid but with a nitrogen twist.
How does the Nitrogen effect the performance? I have no idea. I've been asking myself that about the stainless nitrogen steels and it seems that the answer for those might be some types of Chromioum nitrides and very fine carbonitrides that are causing "solid solution" hardening.
I dont fully understand it, I can regurgitate information about it, but to really understand it is something else.
So what does nitrogen do in low chromium steels? Not sure, I'm still puzzled by VANAX and what the vanadium is doing without any carbon.
So many questions, How hard is a nitride? what are the different nitrides? CrN? CrN2? CN? Fe2N? What nitrides are forming in the steel, do nitrides even compare to carbides? Or is it just a finer particle that occupies space to increase the strength with out distorting the lattice and not necessarily a harder particle. I have no idea, not having the answers doesn't bother me and the endlessness of it keeps me entertained. Just have to "do it" rather then speculate.
The bigger problem with Vancron 40?
Where is it? Seriously, where do you buy it?
Next, is it in the right size? Its not like you can hammer it down to knife stock in the coffee can forge haha yea they can roll it down to size but thats not an option for a regular guy, Id rather buy a new car and a trip to Mexico with that amount of cash.
Then, whats the price? looks very expensive, probably too expensive HSS is already expensive by itself, some of these Nitrogen Stainless steels are also ghastly on the price, so putting them together for an exotic steel made by Uddleholm with 3rd gen powder and I'm clenching my teeth just thinking about it. Might be some serious coin.
Lastly, How do You heat treat it for optimal performance? Thats really where the big time and money is going to go. Trailblazing kinda stuff, then just to find out you have only 10% better results with 1000% cost haha yikes.
And then, another hot steel walks by and you forget all about Vancron 40 hahaha
Where am I?
Eh, forgot, guess I'll go sharpen something.