Thermal transport properties of grey cast irons

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Thermal diffusivity and thermal conductivity of grey cast iron have been measured as a function of graphite flake morphology, chemical composition, and position in a finished brake rotor. Cast iron samples used for this investigation were cut from ``step block`` castings designed to produce iron with different graphite flake morphologies resulting from different cooling rates. Samples were also machined from prototype alloys and from production brake rotors representing a variation in foundry practice. Thermal diffusivity was measured at room and elevated temperatures via the flash technique. Heat capacity of selected samples was measured with differential scanning calorimetry, and these results ... continued below

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8 p.

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Hecht, R.L.; Dinwiddie, R.B.; Porter, W.D. & Wang, Hsin October 1, 1996.

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Thermal diffusivity and thermal conductivity of grey cast iron have been measured as a function of graphite flake morphology, chemical composition, and position in a finished brake rotor. Cast iron samples used for this investigation were cut from ``step block`` castings designed to produce iron with different graphite flake morphologies resulting from different cooling rates. Samples were also machined from prototype alloys and from production brake rotors representing a variation in foundry practice. Thermal diffusivity was measured at room and elevated temperatures via the flash technique. Heat capacity of selected samples was measured with differential scanning calorimetry, and these results were used to calculate the thermal conductivity. Microstructure of the various cast iron samples was quantified by standard metallography and image analysis, and the chemical compositions were determined by optical emission spectroscopy.

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8 p.

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OSTI as DE97000146

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  • 1996 Society of Automotive Engineering (SAE) brake colloquium, New Orleans, LA (United States), 14-16 Oct 1996

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  • Other: DE97000146
  • Report No.: CONF-9610185--1
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 391701
  • Archival Resource Key: ark:/67531/metadc674364

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  • October 1, 1996

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  • July 25, 2015, 2:20 a.m.

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  • Feb. 1, 2016, 2:02 p.m.

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Hecht, R.L.; Dinwiddie, R.B.; Porter, W.D. & Wang, Hsin. Thermal transport properties of grey cast irons, article, October 1, 1996; Tennessee. (digital.library.unt.edu/ark:/67531/metadc674364/: accessed September 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.