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January 04, 2009

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Thanks for the entry- an odd case that we can all learn from! What to do with the knowledge? Who knows...

That last photo... Not rear der. but inside of Campy Ergo lever...
We can identify the Central Pivot, Pivot Washer, Ratchet Ring... Index Gear, Return Spring, Thumb Lever and Coil Spring (l to r) among other pieces. The odd piece on the left with the pin is what's left of the main shift assembly. Looks to be from the right hand lever.

Sorry for your loss, but thanks for sharing!

Since I'm not a materials expert, I'm not going to definitely put an answer as to whether this frame can be reused or not. But as I have shown here, theoretically, temperatures that the frame could have encountered in the house fire would have likely begun to transform its microstructure in some fashion.It would be best to have the frame sent to Materials Testing Lab for non-destructive testing for hardness or a more involved etching process to observe the microstructure.

Fire: You are right that the temperature got high enough to ruin the grain structure. In fact, the frame actually started to sag a bit. I didn't show that in the photos but the frame definitely began to distort. No more riding for this frame. Thanks for reading.

Hey,
Thanks! Great post you have written on "Results of Fire Damage to Titanium—and Other Materials". Really I can say that your post is very informative, I'll come across your blog again when you will update it with new.
Thanks,
David Bailey
http://www.o-n.com.com/

I watched an episode of Forensic Files crime show about a man that was killed and burned beyond recognition. However, his dental implants, made from titanium, survived. Using this, he was immediately identified and the killer was quickly apprehended. Titanium can survived extreme heat, aircraft made from titanium like the legendary SR-71 and the Russian MiG-25 can withstand temperatures that can melt ordinary steel. Titanium is the real deal.

The metal does show remarkable tenacity against fire. Still, you should think about getting rid of the bicycle, or at least not use it anymore. We can't tell how much more damage the bicycle could stand.

Informative photographs. Keep it up!

How to calculate the temperature of a fire indirectly… very conclusive I should think. Can the temperature reading post-fire possibly help decode how some fires have been started?

Tsk, this wasn’t a good way to welcome the New Year. That must have doused their new year celebrations like bucket of cold water… However, it’s a good thing they’re safe. Did they re-celebrate New Year’s Eve? I think they should’ve.

Tsk, this wasn’t a good way to welcome the New Year. That must have doused their new year celebrations like bucket of cold water… However, it’s a good thing they’re safe. Did they re-celebrate New Year’s Eve? I think they should’ve.

Thank you for sharing this difficult experience. My friends house recently burned down and he is currently working to rebuild it. However, he did lose a lot of his possessions. It just shows you to be grateful for what you have and take nothing for granted.

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