Study on the Thermal Fatigue Resistance of Ductile Iron

Zhang Yin Xu; Yin Ju Jiang

doi:10.4028/www.scientific.net/AMR.512-515.2093

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 512-515Study on the Thermal Fatigue Resistance of Ductile...

Study on the Thermal Fatigue Resistance of Ductile Iron

Abstract:

Simulated service condition of aluminum ingot casting molds, samples of ductile iron was tested in a temperature Cycle from750°C and water-cooled to 25°C till a crack appeared in the sample. its thermal fatigue resistance of samples based various microstructure included as—casting, annealing or alloying ferritic matrix structure, or alloying pearlitic structure and the upper or low the bainitic structure had been researched. The study shows that the thermal fatigue resistance of the annealing ferritic nodular cast iron was superior to the others.