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Titanium for medical device.

Titanium for medical device.

Titanium for medical device.

(OP)
Can anyone tell me which of the following Titanium alloys have the most memory? (I have a device using Ti6Al4V that doesn't have enough shape memory to fully deflect back to the original state). Strength is also a consideration - how does it compare to Ti6Al4V?

Ti6Al7Nb
Ti5Al2.5Fe
Ti13Nb13Zr
Ti12Mo6Zr2Fe

RE: Titanium for medical device.

Sorry, I don't have an answer to your titanium alloy question, but I thought you might be able to help me.  I am trying to get in touch with application/product specialists in Europe that have experience with nitinol/sma medical products.  I would appreciate any referrals.

Jesi

RE: Titanium for medical device.

Titanium alloys are used extensively for orthodontic arch wires.  Most of the manufacturers have information on their web pages that would help you.  I'm pretty sure the best shape memory alloy is NiTi.

Jim Treglio
Molecular Metallurgy, Inc.

RE: Titanium for medical device.

Dear Sir, I am very sorry to tell you that any titanium alloy such as your list has no any shape memory effect.The NiTi alloy is a classical shape memory alloy, but it is not divided into titannium alloys. If you want to use some shape memory effcet, I think that the only choice is NiTi alloy for medical applicition.

Judson W

Share the newest technology with anyone for memory alloy materials and its applications.

RE: Titanium for medical device.

If you have some question, give me a mail

Share the newest technology with anyone for memory alloy materials and its applications.

RE: Titanium for medical device.

gweitzel - it sounds like you want superelastic properties, in which case, specify an As temp well below the temperature your application will see.  A NiTi part with As of -10°C (commonly available) should suffice if you need superelastic properties at body temperature (or room temperature).

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