Cryogenic Technical Articles |
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Cryogenic Technical Articles |
lmcchesney |
Feb 9 2004, 09:31 AM
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#1
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Member Group: Members Posts: 488 Joined: 24-November 03 From: Ocala, Fl. Member No.: 1,381 Region Association: None |
I have reviewed all the messages from the foum regarding cryogenic processing of engine parts. However, it lacks good/significant documentation regarding the different processes done.
Does anyone know the source of technical articles regarding this process. There must be some University site with this information. Yes, I have searched the MIT site without success. Anyone have the information? Thanks, L. McChesney |
airsix |
Feb 10 2004, 01:01 PM
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#2
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I have bees in my epiglotis Group: Members Posts: 2,196 Joined: 7-February 03 From: Kennewick Man (E. WA State) Member No.: 266 |
Dave,
You might like reading some of the info Crucible publishes regarding their products. They pretty much lead the industry (IMHO) when it comes to steel technology. Here is a link to a very basic overview of some heat-treat steps for tool-steels (in general - not specific) that includes some basic info on the role of cryo treatment in the hardening process. When I said that the cryo treatment could increase the hardness of a steel I mean specific to the heat-treat process. The benefit is in getting some of the more stuborn tool steels to more fully transform austenite to martensite. And you only get austenite when you take the steel to critical temp (as high as 2,100 F for some steels). If you cryo any old piece of anealed (non hardened) steel that's just laying around, the cryo will have no effect on hardness as far as I know. Elsewhere on crucible's site they have whitepapers with specs on each of their steels with specific heat-treat proceedures for each including hardness tables for different heat-treat procedures including cryo and non-cryo treatments. -Ben M. |
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