[s-cars] Silly question - cryo treated rotors

[JC]

I think it's much similar principles to regular heat-treating, but, like the
X-games version... aka that controlled temp cycles up and down align the
grain, so it's as much the re-warming after cryo as it is the cooling down
to cryo.

something about austentite and martenite content as well I think.  what the
hell do I know though... seems like it could be plausible, and appears there
are scientific papers on it, HOWEVER fully the snake oil bit seems the over
the top claims about how cryo rotors make your car stop instananeously with
no pedal effort from any speed and with .002% of the normal brake wear and
that your rotors and pads will last through a nuclear holocaust (or 2012
whichever comes first) etc. etc. etc. all sounds like BS...  I'm on the same
page as previous post  - aka possibly benefits for hard track use, likely
negative ROI for street use...


> -----Original Message-----
> From: s-car-list-bounces at audifans.com
> [mailto:s-car-list-bounces at audifans.com] On Behalf Of Kent McLean
> Sent: Friday, December 04, 2009 8:02 AM
> To: S-Car-List at Audifans.Com; quattro list
> Subject: Re: [s-cars] Silly question - cryo treated rotors
>
> Robert Myers wrote:
> > Molecular motion (required if the structures are to
> > realign) slows down at lower temperatures.  The argument
> would favor
> > heat treating not "cold treating".
>
> I'm not chemist either, but might the cold "shrink" the
> molecules, forcing them into a better fit that, once they
> regain normal temperature, have a stronger "bond"?
>
> --
> Kent
>
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