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#6 (permalink) |
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Member
Join Date: Mar 2008
Location: Somerville
Posts: 91
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Regular titanium is softer than hardened steel, so it doesn't hold an edge very well. There's something called titanium carbide which is harder, but I'm not sure what its other properties are -- wikipedia calls it a ceramic so I'm not sure if that'd be strong enough to use as an edge.
I looked up Batalean's marketing blurb and they claim the edges are made of "Titanal", which is a rather funny word. Presumably they've added something to the titanium in order to trade tensile strength for hardness. I couldn't find any info on Burton's site about their edges. I guess I've been turning into a materials dork recently.. edit: beat'd by grizz. only one point of disagreement: if I have it right, titanium isn't brittle, it's just soft compared to hardened steels edit 2: There are some pros for titanium as an edge material though: It won't rust and it's light. Last edited by alf; 12-28-2010 at 07:14 PM. |
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#8 (permalink) | |
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Senior Member
Join Date: Sep 2009
Location: Snohomish WA
Posts: 295
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Quote:
http://www.azom.com/Details.asp?ArticleID=1298 I'd say that the cons far outweigh the pros. Even if you could find some titanium alloy that would hold an edge well, the common person wouldn't want to purchase the tooling to keep that edge sharp. Any tools that are capable of cutting/shaping/sharpening Ti are very expensive. They wear out very fast as well, constantly needing replacement.
__________________
11/12 Days riding: 63 12/13 Days riding 51 Last edited by J.Schaef; 12-28-2010 at 07:55 PM. |
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#9 (permalink) |
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Veteran Member
Join Date: Dec 2008
Posts: 1,394
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First off. There are different grades of steel with different levels of hardness.
• Titanium is not harder than steel. Titanium is about as hard as low grades of steel • Titanium is relatively strong for its weight/density (which is why people want to make airplane parts out of it) • Tungsten carbide and fancy steel alloys are the hardest metals in the world. These super-hard metals would probably make for a poor snowboard edge because they have a poor modulus of elasticity. This means that if you stress the snowboard hard enough to flex it (and the edge), then these super-hard metals would be much more prone to breaking instead of bending. This also means that instead of the edges dulling gradually, little bits might very well break off. If you were a gazillionaire, you could probably pay someone to make a snowboard with a modular diamond or granite edge. I'm not sure how well it would work in real life... but in theory if you staggered the edge with metal and then a super-hard material, you would be able to get more flex with the more durable edge. However, i'm not sure how much an edge tool capable of sharpening diamond would cost (or how long it would take to tune the board). MORAL OF THE STORY: Spending 20 minutes tuning your edges every couple of days out probably isn't so bad in the long run Last edited by Tarzanman; 12-28-2010 at 07:59 PM. |
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