Titanium Alloys?

>

>> Having the fin as thin as possible is the most important, then weight and
>> strength. Looks like a heat-treated Ti alloy is in fact the best choice,
>> other than some "unobtainium", LOL!
>>
>> Thanks again for all your help, my goal is to travel our 330' course in
>> 1.8 sec!

>
> Well, good luck. Let us know how you do with it.
>
> --
> Ed Huntress
>
>
>

> Guessing here, but maybe you are looking for Titanium-Nickel
> alloy (TiNi)?
>
> If I remember correctly that is what the bows are made of on
> my glasses. You can bend them almost 90 deg and they will
> spring back to their original shape. Here is some info from
> a research project I found:
>
> ===
> "Tensile Properties and Transformation Temperatures of Ti-Ni
> Alloy Dental Castings Added Cu
>
> Hisashi Doi, Equo Kobayashi, Takayuki Yoneyama and Hitoshi
> Hamanaka
>
> Department of Metallurgy, Division of Biomaterials,
> Institute of Biomaterials and Bioengineering, Tokyo Medical
> and Dental University
> (2-3-10, Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062)
> Original Paper: J J Dent Mate Vol. 20 No. 1 48-53 (2001)
> Keyword: Titanium-nickel alloy, Superelasticity, Mechanical
> properties
>
> The application of the Ti-Ni base alloy to dentistry is
> expected to utilize its shape memory effect and
> super-elasticity properties. The transformation temperature
> changes when part of the nickel in a Ti-Ni alloy is replaced
> with copper. In this study, the super-elastic property of
> Ti-Ni alloy in which part of the nickel was replaced with
> 10mol% of copper was investigated, and the application of
> this alloy to dental casting was also examined. The results
> of this study showed that the super-elasticity of dental
> casted Ti-Ni-Cu alloy with 10mol% of replacement copper was
> good and that this maybe a useful method of reducing the
> quantity of nickel in Ti-Ni based alloy."
> ===
>
> From Mat-world:
>
> Titanium Nickel Alloy
> TiNi Alloy
> Ti-Ni (50:50 wt%)
> Ingots, Wires, Sputtering Target, Sheet, Plate, Disk
>
> http://www.mat-world.com/En_elements/ti.html
>
> Maybe this is the stuff you are looking for or could use...
>
> --
> Leon Fisk
> Grand Rapids MI/Zone 5b
> Remove no.spam for email

>Thanks for the reply, but no, I need to put a slight bend in it, just need
>it to be stronger than the annealed stuff I have.
>
>Found out the "other" alloys (662, 6242, 6246) harden better than good 'ol
>6-4, so I'm looking for something like this:
>
> http://www.matweb.com/search/DataSheet.aspx?MatID=14246&ckck=1
>
>Tensile way up there and quite a bit harder too. Turns out that finding
>heat-treated Ti isn't that easy, most of the robot places and surplus on
>e-bay only have annealed.
>
>Anyone have any idea where to fin a small amount of 0.025-0.030" hardened
>sheet?

> On Fri, 9 May 2008 08:48:28 -0400, "Terry Keeley" <tkee(no
> spam)@rogers.com> wrote:
>

>>Thanks for the reply, but no, I need to put a slight bend in it, just need
>>it to be stronger than the annealed stuff I have.
>>
>>Found out the "other" alloys (662, 6242, 6246) harden better than good 'ol
>>6-4, so I'm looking for something like this:
>>
>> http://www.matweb.com/search/DataSheet.aspx?MatID=14246&ckck=1
>>
>>Tensile way up there and quite a bit harder too. Turns out that finding
>>heat-treated Ti isn't that easy, most of the robot places and surplus on
>>e-bay only have annealed.
>>
>>Anyone have any idea where to fin a small amount of 0.025-0.030" hardened
>>sheet?

>
> No idea, but I would try being honest with some of the big
> suppliers and see if they might help. Just send out some
> email explaining what you what to try and the application
> for it and see what happens. Sometimes these places will
> help the little guy out.
>
> I found this place that seems to have something like what
> you want:
>
> http://www.harveytitanium.com/productline/6Al2Sn4Zr2Mo.aspx
>
> I think this place is related to the previous:
>
> http://www.rolledalloys.com/trc/6Al2Sn4Zr2Mo.aspx
>
> and a ThomasNet search:
>
> http://www.thomasnet.com/products/forgings-aircraft-aerospace-30870257-1.html
>
> Good luck...
>
> --
> Leon Fisk
> Grand Rapids MI/Zone 5b
> Remove no.spam for email