I haven't done any cryo yet, though now that I read that even a home freezer can have a slight effect I might have to start thinking about it a little more. I did have a couple questions though...
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Tempering will cause the retained austenite to decompose to bainite or even pearlite.
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Is there a way to force the retained austenite to bainite and be sure not to get pearlite without marquenching and making the whole thing bainite? I'm thinking a mix of martinsite and bainite might not be a bad thing on a heavy duty chopper.
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The methods used by the individual I was talking with at first seemed odd, but the more I thought about it, the more sense he made.
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Just purely being nosey, but what is this persons unusual method?