The mechanical properties of many materials have been enhanced via cryogenic treatment, which is a cold temperature process performed after traditional heat treatment. In this research the effect of cryogenic treatment on GRCop-84 was examined. Cryogenically and non-cryogenically treated samples were tested identically to determine whether cryogenic treatment has a significant affect on the thermal conductivity of GRCop-84. Optical and electron microscopy were used to characterize the material properties. Cryogenic treatment includes a temper that appears to be responsible for the enhancements observed in GRCop-84.
Cryogenic treatment is a cold temperature process performed after traditional heat treatment, not a substitute for proper heat treatment. Cryogenic treatment has been shown to enhance mechanical properties in many materials. The effect of cryogenic treatment on the thermal conductivity of a copper alloy developed by NASA (GRCop-84) was tested. Potential applications of GRCop-84 include regeneratively cooled rocket engine liners.
Source:http://web.ebscohost.com/ehost/pdf?vid=1&hid=104&sid=8f79dbbe-f760-4574-90f7-3e443e7cbffc%40sessionmgr104
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