Have you ever heard of cryogenically treating metal? It use the reverse
process(kinda) or nitrating, cooling instead of heating. You don't have to
do anything to the part to retrue it after treatment. I have a cryo treated
crank in my TR6 for about 17 race weekends or the equivalent of about 2000
race miles.
^Charly
TR6 #44
----- Original Message -----
From: "Larry Young" <larry.young@pobox.com>
To: "FOT" <fot@autox.team.net>
Sent: Thursday, October 13, 2005 11:53 AM
Subject: Nitriding and Crankshaft Durability
> I've got a couple questions for our resident metallurgists. Of course,
> nitriding hardens the bearings surfaces and reduces wear. But, will it
> make the crankshaft less likely to crack? Is there more than one method
> of nitriding and what are the differences? I have been using a shop
> that nitrides at around 900 degrees, so they must go through a stress
> relieve and straighten process before grinding. I understand there are
> lower temperature processes that do not require stress relieving. Are
> the results comparable?
> Thanks,
> Larry Young
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