Effect of Ti Modification on Microstructures and Properties of Carbidic Austempered Ductile Iron

Thermodynamic and Kinetic Analysis of Austenite Homogenization on Carbidic Ductile Iron

“…In the initial microstructure, the amount of graphite nodules was about 340 per square millimeter, and the volume percentages of graphite, carbides, and pearlite were 9.2%, 12.3%, and 78.5%, respectively. The samples with a size of 10 mm × 10 mm × 1 mm were cut from the bottom of a Y‐shaped test block for the heat treatment experiment. The oxidation‐resistant coating with a thickness of 0.3 mm was coated onto the surface of sample.…”

“…Carbidic austempered ductile iron (CADI) has been widely used in excavator bucket teeth, crusher jaw plates, balls of ball mill, liners of ball mill, and loose soil plow shovels, etc . It has some advantages such as high performance–price ratio, good wear resistance, excellent fatigue strength, high elastic limit, and high yield limit, which attracted extensive attention of researchers . Researchers study different parameters of heat treatment trying to improve the mechanical properties of CADI .…”

“…At present, the influences of austenitizing temperature and holding time on the microstructure and properties of CADI have been studied . However, these studies lacked the quantitative analysis about the austenitizing process of ductile iron.…”

Improved corrosive wear resistance of carbidic austempered ductile iron by addition of Cu

“…The properties (e.g. hardness, impact toughness, tensile strength, and wear resistance) of carbidic austempered ductile iron (CADI) have been significantly improved after several works regarding processing design and composition control [11][12][13][14][15]. CADI is widely applied in the engineering field [16].…”

Simulation on stress of large diameter CADI grinding ball based on ANSYS

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C ADI (Carbidic Austempered Ductile Iron) is a new kind of wear-resistant material developed on the basis of ADI [1] (Austempered Ductile Iron). There are many studies concerning CADI, such as on chemical composition [2][3][4][5] , microstructure [6,7] , properties [8][9][10][11] and heat treatment [12][13][14][15] . The matrix structure of ADI is composed of the acicular ferrite with high hardness, and the strong and ductile retained austenite.

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