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Influence of alloying elements Cu, Ni and Mo on mechanical properties and austemperability of austempered ductile iron

2011; Maney Publishing; Volume: 5; Issue: 2 Linguagem: Inglês

10.1179/174951411x12956208225429

1749-5156

A R Mattar, Stênio Cristaldo Heck, Amadeu Lombardi Neto, Frederico Augusto Pires Fernandes, George E. Totten, Luíz Carlos Casteletti,

Powder Metallurgy Techniques and Materials

Austempered ductile iron (ADI) is the most recent development in the nodular iron family. The austempering treatment produces a unique microstructure, ausferrite, which provides high mechanical strength combined with ductility, toughness, and good fatigue and wear resistance. The effect of alloying elements Cu, Ni and Mo on the mechanical properties and austemperability of ADI is reported. The mechanical strength and toughness decreased with the addition of Mo, but both wear resistance and austemperability increased with Mo content.