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Carbidic Austempered Ductile Iron (CADI) – The New Wear Material

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By: Dr. Kathy Hayrynen, Kristin Brandenberg
Publication Date: June 30, 2003
Contact: Dr. Kathy Hayrynen
Document Type: White Papers


Carbidic Austempered Ductile Iron (CADI) describes a family of ductile cast irons, with given amounts of carbides that are subsequently austempered to exhibit adequate toughness and excellent wear resistance. The abrasion resistance of this new material is improved over that of ADI and increases with increasing carbide content. In a number of wear applications, it can compete favorably with high chromium abrasion resistant (AR) irons in addition to providing improved toughness.

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