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Date: Wed, 25 Apr 2007 10:59:31 -0400
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From: "Bill Wade" <dhc1@gwi.net>
References: <list-2000042@logan.com>
Subject: Titanium bolts
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  I've been thinking about using NAS titanium bolts in a IV-P and I know it 
couldn't be as simple as replacing with similar sizes.
  So far I've found a reference that warned about embrittlement by cadmium 
http://www.eaa1000.av.org/technicl/corrosion/ticad.htm . OTOH titanium 
appears to be favored for use with carbon composites due to corrosion 
resistence. Is galling the only concern with Fe contact or is there chemical 
interaction? Are there any other pro's and cons? Thanks very much-  Bill 
Wade


----- Original Message ----- 
From: "Richard C Alden" <rcalden@juno.com>
To: <lml@lancaironline.net>
Sent: Monday, April 23, 2007 10:54 AM
Subject: [LML] Re: L360 Nose Gear


> Larry,
>
> I wouldn't use titanium for the nose gear scissors.  Back when I worked
> for a living, all available titanium alloys ( including the favored
> 6Al4V) had a galling tendency even worse that stainless.  Maybe better
> alloys are available today.  (We used titanium for the spoiler actuators
> on the F-111, but went to extreme measures to avoid Ti/Fe contact.)
>
> Dick Alden
> L320, N425A
>
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