A Study of Austempered Ductile Cast Iron
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ABSTRACTExperiments were carried out on unalloyed ductile cast iron to evaluate the % retained austenite (%RY) and its lattice parameter as a function of austenitizing time and temperature for austempering temperatures ranging from 270 to 420°C. Results are related to expected carbon levels in the gamma iron matrix at the austenitizing temperature. It is shown that the rate of austenitization can be described as a two step process and experiments demonstrate that 900°C austenitizatlon is complete after 8m. An 1100°C homogenizatdon has been shown to have a small effect upon %RY and rate of austenitization.
2002 ◽
Vol 333
(1-2)
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pp. 60-66
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2001 ◽
Vol 315
(1-2)
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pp. 70-80
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2005 ◽
Vol 393
(1-2)
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pp. 254-268
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1997 ◽
Vol 4-5
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pp. 175-180
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