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University of Zenica , Zenica , Bosnia and Herzegovina
Austempered Ductile Iron (ADI) is a class of Ductile Iron family, obtained by heat treatment process. Ductile Iron samples are first austenitised to dissolve carbon, then quenched rapidly to the austempering temperature to avoid formation of deleterious pearlite. Resulting ausferrite microstructure consists of acicular ferrite embedded in stabile retained austenite. In case of application of the ADI casting on elevated temperatures transformation of the initial ausferrite microstructure is taking place. Influence of elevated temperature on ausferrite microstructure transformation is presented in this paper.
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