What is the most corrosive resistent metal?

Vibranium? Isn't that the stuff that Captain America's new shield is made from. Man, appeared in a Comic issue when I was till a child (well I am still a child, mentally at least). I can not believe that I acutually know this! I seem to retain only the useless stuff :rolleyes: .
 
There is a very useful application of electrochemical potential. These values must be known and used to make cathodic protection systems for underground structures, or any other that you want to protect, such as submarine and ship hulls. They allow a reasonable estimation of the amount of sacrificial anodes or the countering voltage for impressed current systems. There are probably people here that design them or work on them for pipeline companies. Also, a note on Ti and Al. I'd have to review the material, but the tightly adherent oxide layer on these metals makes them subject to corrosion in a basic environment. Expose either to wet cement or concrete or a concentrated NaOH, with gloves, since both can burn skin easily. Ok, knowitall mode off.
 
I can attest to 6AL4V titanium being affected by a spray on wheel cleaner. Silly me thought it'd be safe to use it to clean off the Ti liners on an afck since it was designed for aluminum and magnesium. It didn't hard them really, but it did turn them a dark grey color, and had a bit of a pungent odor if I recall.
 
Liquid metal corrodes quite easily in HCl. I tried to etch Damasteel bolsters on a Lquid metal blade and it pitted before the bolsters etched, galvanic action at work here I suspect.

I normally etch damasteel bolsters on Stellite with no effect on the Stellite.
 
ckl . . . I'm not sure if you're trying to wind everyone up by continuously refering to "stainless steel", but firstly you need to understand that there are literally dozens of different types of stainless steels, virtually all of which will rust or tarnish under certain conditions. Then you need to understand that pretty much ALL metals WON'T rust or tarnish if kept in a vacuum. If you gave us a better idea of what you are trying to achieve we might be able to help.
 
stain-LESS, not stain-PROOF. All 'steels' will be subject to rust at some point. 'Metals', on the other hand, may not.
 
David Boye Cobalt folders, no rust, excellent cutting properties, not what you'd call tactical but useful for every day chores;

See his web page Here

G2

I had one and sold it like an idiot, but a friend sent me a the 440c dendritic folder and that's a nice knife as well, I think the cobalt blade has a more
biting edge though.
 
HiltonP said:
ckl . . . I'm not sure if you're trying to wind everyone up by continuously refering to "stainless steel", but firstly you need to understand that there are literally dozens of different types of stainless steels, virtually all of which will rust or tarnish under certain conditions. Then you need to understand that pretty much ALL metals WON'T rust or tarnish if kept in a vacuum. If you gave us a better idea of what you are trying to achieve we might be able to help.
Click to expand...

Man, i am interested in tool steel... Too bad i have no knowledge in science studies... I want to know more about SS because they are very common metal used in knife and cookware etc. :)

BTW, what about rust and finish? Do you think mirror polish likes the one in SAK can reduce the possibility of rusting?
 
Do steels rust differently? for example, are some steels more prone to pitting rather than a surface rust. I've heard that a patina, similar to a mustard etch will give an element of protection to the blade, is that true?

What's the difference in "silicone" bronze and plain bronze?
David
 
DGG said:
Gold is the most corrosive resistent metal!
Click to expand...

It's very corrosion resistant but isn't platinum even more resistant? In any case, I've never seen a gold-plated knife even though it's not that hard to do. I do have some nickel-plated knives though. They are more corrosion resistant than my stainless steel blades.
 
titanium oxide is beautiful and harder than most titanium alloys anyway. it oxidizes similar to aluminum. It is very unreactive. Gold I think is the most unreactive metal. If you abuse stainless it can corrode on you but I've never seen it on my knives. That said, I'm a 1095 high carbon steel lover and with sporadic maintenance I don't have any rust issues with my high carbon blades. All this "high carbon is high maintenance" stuff is BS.
 
Nitanol is your answer. Not the Crucible powder stuff, the original stuff made for the Navy back when they were experimenting with it. I understand there are several bars of the original stock floating around and that the material is near legendary. Very tough, extremely high hardness, and for all intensive purposes corrosion proof unless your working in a chemical bath.
 
You must log in or register to reply here.
Back
Top