Naked Science Forum
Non Life Sciences => Chemistry => Topic started by: neilep on 23/09/2007 17:19:03
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Dear Sirs/Madams/Others!
I know Titanium is an industrial metal that is very hard. But why is is that if a ring is made from it that if is breaks it can NOT be fixed ?...if It's split or chipped it can not be repaired...whysthatthen ?
Thanks
neil
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All I know is that titanium is very difficult to weld. See also the quote from Wikipedia (http://en.wikipedia.org/wiki/Titanium) :
Titanium burns when heated in air 610 °C (1,130 °F) or higher, forming titanium dioxide.[6] It is also one of the few elements that burns in pure nitrogen gas (it burns at 800 °C or 1,472 °F and forms titanium nitride, which causes embrittlement).
(The melting point is much higher than 610°C or 800°C)
Still, if they can build bicycle frames from titanium, it must be somehow possible to fix a broken ring (at a cost).
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All I know is that titanium is very difficult to weld. See also the quote from Wikipedia (http://en.wikipedia.org/wiki/Titanium) :
Titanium burns when heated in air 610 °C (1,130 °F) or higher, forming titanium dioxide.[6] It is also one of the few elements that burns in pure nitrogen gas (it burns at 800 °C or 1,472 °F and forms titanium nitride, which causes embrittlement).
(The melting point is much higher than 610°C or 800°C)
Still, if they can build bicycle frames from titanium, it must be somehow possible to fix a broken ring (at a cost).
Yes....yes I am sure you are right Mr Eric Sir. THANK YOU for your answer.
I imagine then that although the ability is there to create with Titanium, perhaps, specifically as something as small as a ring, that it's not cost effective.
Thanks Mr Eric
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I know Titanium is an industrial metal that is very hard. But why is is that if a ring is made from it that if is breaks it can NOT be fixed ?...if It's split or chipped it can not be repaired...whysthatthen ?
Titanium welding requires particular technics, but not so complicated or expensive.
Arc welding:
TIG (tungsten inert gas)
MIG (metal inert gas)
PAW (plasma arc welding)
Power Beam Processes:
laser or electrons beam
Resistance welding
Friction Welding
Diffusion
Forgering
Soldering
...
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I know Titanium is an industrial metal that is very hard. But why is is that if a ring is made from it that if is breaks it can NOT be fixed ?...if It's split or chipped it can not be repaired...whysthatthen ?
Titanium welding requires particular technics, but not so complicated or expensive.
Arc welding:
TIG (tungsten inert gas)
MIG (metal inert gas)
PAW (plasma arc welding)
Power Beam Processes:
laser or electrons beam
Resistance welding
Friction Welding
Diffusion
Forgering
Soldering
...
Grazie Mr Lightarrow Sir.
Hmmm..does seem a lot of work involved just to fix a little ring !
So, it's not as simple as just melting the thing down again?
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But that's not so much 'fixing' the ring as completely remaking it. I think that's the main problem. Any attempt at fixing the ring is likely to destroy the ring.
Dick