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 Post subject: X-15 Corrosion Problems
PostPosted: Fri Jun 15, 2012 8:32 am 
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Anyone ever hear of the X-15 at the NMUSAF having corrosion issues? I thought this link was interesting...

http://www.mach25media.com/x1504.html

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PostPosted: Fri Jun 15, 2012 8:46 am 
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If you guys want to chime in your thoughts,
I would be more than happy to present it to them.

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PostPosted: Fri Jun 15, 2012 8:48 am 
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I sent the link over to the restoration lead

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PostPosted: Fri Jun 15, 2012 8:55 am 
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According to a supplier California Metals website, INCONEL is a corrosion resistant self passivating metal, It shouldn't corrode too much as it's substantially Nickel.

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PostPosted: Fri Jun 15, 2012 9:24 am 
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Possibly oxidation of coating on the metal rather than the metal itself.

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PostPosted: Fri Jun 15, 2012 11:48 am 
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Self passivation would mean that the surface is technically corroded, and that corrosion is what is protecting the underlying metal.


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PostPosted: Fri Jun 15, 2012 12:00 pm 
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It's somewhat like CORTEN steel. It forms a thin layer of corrosion on the surface, and that layer protects the rest of the metal from further corrosion. The steel looks corroded, but its just a very thin layer on the surface.

A lot of highway departments use it for guardrails along roadways, since the brown surface looks better in a wooded scenario that the shiny galvanized steel.

Walt

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PostPosted: Fri Jun 15, 2012 12:33 pm 
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RareBear wrote:
It's somewhat like CORTEN steel. It forms a thin layer of corrosion on the surface, and that layer protects the rest of the metal from further corrosion. The steel looks corroded, but its just a very thin layer on the surface.
A lot of highway departments use it for guardrails along roadways, since the brown surface looks better in a wooded scenario that the shiny galvanized steel.
Walt



We have a long railroad bridge like that. They simply let it rust to a nice patina. When new, back in the 70s, it won design awards.
Too bad they didn't figure out that the rust would run down the concrete supports...so it looks a bit tatty.

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PostPosted: Fri Jun 15, 2012 4:52 pm 
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Good to know she'll be A O.K! :) other wize, I was told by "GEN. Warbird" that all they would have to do is take her up to mach 2 and that "Stuff" would come right off and she'll be looking as good as new! :lol:


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PostPosted: Fri Jun 15, 2012 5:05 pm 
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B.Cat/S.Fury wrote:
Good to know she'll be A O.K! :) other wize, I was told by "GEN. Warbird" that all they would have to do is take her up to mach 2 and that "Stuff" would come right off and she'll be looking as good as new! :lol:

Except I'll bet the folks living around Dayton would be 'dis-accomidated' to hear that XLR-99 sound off! :shock:

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PostPosted: Fri Jun 15, 2012 6:37 pm 
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Interesting input. I wasn't sure if this was a real problem with the skin of the plane or not. I've seen it in the past and didn't notice anything apparent but I wasn't really looking that hard either. Great discussion as always...

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PostPosted: Fri Jun 15, 2012 6:46 pm 
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The thing I always liked about the NMUSAF X planes is that most of them are not restored, but in the condition they were last used in. MAkes them more of a time capsule.

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