The volume fraction of high-carbon austenite was determined for the heat treatment conditions by X-ray diffraction measurements. The microstructural characterization was carried out by optical microscopy, while Rockwell C Hardness, tensile, Charpy impact, and block-on-ring wear loss tests were evaluated for mechanical characterization from the camshaft and standard keel block. The CADIs were produced at austempering temperatures of 265 and 305 ☌, during 30, 60, 90, and 120 min. In this work, two carbidic austempered ductile irons (CADIs), alloyed with 0.2 and 0.4 wt% Cr, were evaluated to determine their suitability in the camshaft production by microscopy techniques and mechanical tests. Different processing routes have been developed to increase the strength and hardness of camshafts for automotive applications.
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