MICROSTRUCTURAL ANALYSIS OF AUSTEMPERED DUCTILE CAST IRON USING THE SCANNING ELECTRON MICROSCOPE.

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Abstract

The microstructural characteristics of unalloyed ductile iron austempered at various temperatures for various times have been characterized and correlated to Charpy impact toughness. Scanning electron microscopy has been used to reveal the microstructural details of the austempering process for polished and etched specimens at high magnifications as well as revealing fracture surface characteristics. X-ray diffraction techniques and nondestructive magnetic permeability measurements were used to estimate the amount of retained austenite present in these structures.

Original languageEnglish (US)
Pages (from-to)253-262
Number of pages10
JournalTransactions of the American Foundrymen's Society
Volume91
StatePublished - Dec 1 1983

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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